Tuesday, April 12, 2011

The Thunder Giant




A frightening hailstorm pummeled Savannah, GA a couple of Sundays ago, beating off azalea flowers and shredding tender foliage. A few friends and I were discussing it later in an undercroft. One wondered at the power of nature as she recited the meteorological explanation of hail accretion, how ever-larger stones can be lifted skyward over and over.

"That seems plausible enough," I said. "But it makes as much sense as the Thunder Giant, and is not so interesting."

They stared at me as though both my eyes had blurred into one in the middle of my forehead. I had to explain.

When I was very young, my Aunt Ann, not 10 years older, used to create masks for me of brown paper bags while she played 78 RPM recordings, fat and scratchy, of fairy tales. Black and multi-colored crayons defined my eyebrows and nose, shaded my cheeks and ears. I was a fearsome sight.

Sometimes, when we were at Grandmother's house, she would take my brother and me for walks, showing us holes in tree trunks where fairies lived, pockets of water between roots where they stopped to bathe and drink, fairy rings in the yard where they counseled, and secret glades where they danced.

She told us about the Thunder Giant when we were huddled together on a bed during a magnificent storm. He stomped, shouted, rolled huge bowling balls down his alley, threw white-hot spears and stones.

Though we were terrified, we always asked for more.

When I asked my friends, none had ever seen the Thunder Giant rage or hailstones accrete. My explanation was as good as theirs, and I think I understand the Thunder Giant better.

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Our Lady's Mantle


Our Lady's Mantle! When I musing stray
In leafy June along the mossy sward,
No flower that blooms more fixes my regard
Than thy green leaf, though simple its array;
For thou to me art as some minstrel's lay,
Depicting manners of the olden time,
When on Inch Cailliach's isle the convent chime
Summoned to Vespers at the close of day.
"Tis pleasant 'mid the never-ending strife
Of this too busy, mammon-loving age,
When Nature's gentler charms so few engage,
To muse at leisure on the quiet life
Of earlier days, when every humble flower
Was known to all, and cherished as a dower.
- James Inglis Cochrane (1863)

Yes, there was a time "when every humble flower was known to all", or and least to many, and cherished as an endowment. (I would have expected it to be during Cochrane's time, but apparently he thought not.) Often plants were prized for their medicinal and symbolic values; Lady's Mantle was among them.

From the time of Dioscurides, physicians believed that plants which resembled in some way a body part, for example, might be useful to treat a related malady. They reasoned that the Creator had so fashioned plants to give some clue to their usefulness. Each useful herb was regarded as a divine gift. This philosophy has been largely rejected in modern times, but it has been shown that many old remedies based upon the doctrine of signatures actually do treat successfully as herbalists expected and demonstrated. Skeptics believe it merely coincidental.

Lady's Mantle was probably so named for the resemblance of its leaves to women's cloaks, flaring and ruffled. Because cloaks covered and protected women, it was no stretch to expect that Lady's Mantle had many applications for women's health. Indeed, it does. The herb is an astringent and styptic, was (and is still) used to tone female reproductive organs, treat prolapse, hemorrhage and excessive menstrual bleeding.

Lady's Mantle is of the genus, Alchemilla (pronounced al-kem-ILL-uh), and it is this name that alludes to other fascinating notions. Alchemilla refers to the herb's use in alchemy.

Alchemilla leaves hold dew drops like tiny diamonds or pearls around the leaf margins, and this gave rise to superstitious beliefs; among them that collected dew was useful in love potions, and when dropped into the eye could enable one to see fairies.

As you might expect, Our Lady's Mantle, glistening with its diamonds and pearls, also came to symbolize the covering of the Blessed Virgin Mary. It was this contemplative image that apparently set Cochrane to musing about the convent chime at Vespers on Inch Cailliach's (Cailleach's) isle (aka The Island Of Old Women) and the quiet life.

(By the way, Cailleach was a hag of mythological proportions storied among Irish and Scots, which makes it more interesting that a convent was established on the Isle. Maybe the convent was meant to sanctify the place, or maybe the presence of mysterious nuns birthed the myth. But I'll leave that alone for now.)

There are about 300 species of Alchemilla, but few are widely cultivated. Those that are share generally the same characteristics and cultural requirements.

The plants possess a mounding habit, from 18 inches to 24 inches in height and width. Foliage is herbaceous. Round, lobed leaves arise from a basal woody stem. Small flowers held above the mound are chartreuse and lack petals, but they are produced in such quantity that they are quite charming. Bloom season is late spring to mid-summer.

Alchemilla is perennial and hardy in USDA climate zones 3 through 8. Soil should be humusy, slightly moist and well-drained with pH ranging from 5.6 to 7.5. Plant them in full sun to partial shade, though gardeners in warmest climates should provide afternoon shade. Water regularly.

When conditions are agreeable, Lady's Mantle produces lots of seeds which germinate readily. So you could find yourself with plenty of plants to give away. To avoid re-seeding, dead-head spent flowers.

I recommend Alchemilla for naturalizing in shaded gardens, heritage and heirloom gardens, medicinal herb gardens, and even fairy gardens. Alchemilla is an excellent companion plant for narcissus and tulips.

Alchemilla is not resplendent in her raiment, but is certainly "one of Nature's gentler charms." She may lead you, also, "to muse at leisure on the quiet life of earlier days."

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Monday, April 11, 2011

Sea Thrift Grows By The Summer Sea

 SEA THRIFT grows by the summer sea,
Till the summer’s close,
On a grassy cliff, ’neath a radiant sky,
While sun and summer and wind go by,
Sea thrift blows and blows.
-Dollie Radford (1858-1920)

With apologies to Mrs. Radford, the Sea Thrift about which I am writing is not the cottage standing in a garden at some distance from the sea, but the flower growing on the cliff that is full of joy all the summer through.

Thrift is a common name often applied to plants in three separate genera: Phlox subulata, Dianthus spp. and Armeria. I suppose it's mostly because they so closely resemble. All have low profiles, mounding habits, and linear or needle-like foliage. The name, Armeria, is the latinized version of Dianthus, so that could also contribute to the confusion. But the one I'm writing about is Armeria.

Armeria (pronounced "ar-MEH-ree-ah") is a perennial, native mostly to the Mediterranean region of Europe and Great Britain, often found along the coast. As any know who have lived by the sea, it can be a harsh environment. Strong winds, sand, heat and cold, dry conditions and salt spray buffet the shore. Coastal plants are well-suited to the situation, hunkering down behind dunes, sheltering in crags, bending with the wind, and tolerating the salt. Just so does Armeria thrive.

Though Armeria boasts over 100 species, just a few are commercially available. Among them are A. alliacea (resembling Allium), A. juniperifolia (resembling juniper foliage), A. maritima (of the sea) and A. pseudarmeria (the plant looks more like Dianthus than Armeria, so is called False Armeria though it isn't). A. maritima is the most popular.

Armeria is perfect for rock gardens, coastal gardens, low borders along patios and walks, and cutting gardens. For water-wise gardeners, Armeria is great for xeriscaping. Armeria maritima has the added advantage of being very tolerant of high copper levels in the soil.

Armeria prefers full sun in USDA climate zones 3 or 4 to 8. Plant in very well-drained soil with pH ranging from 6.6 to 7.8. Space 6 inches to 8 inches apart. Do not water too much or Armeria will rot. To prolong the bloom season, dead-head the spent flowers to prevent them from going to seed. Once seeds are produced, Armeria thinks its job is done and will settle down to rest.

Those of you who garden near the sea should find Armeria very much to your liking. Even if you don't live near the shore, it will delight you with its joyful little flowers blown by the breeze.

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Friday, April 1, 2011

Garden Tasks For April

Among the most frequently asked questions, "When should I...", is near the top of the list. Here are a few gardening tasks for April organized by region.

Northeast States: Frost danger continues. If you haven't begun sowing flats of warm-season annuals and vegetables indoors, get started. If you already have flats of growing warm-season annuals and vegetables, it might be time to transplant them into larger containers. Plant summer bulbs in containers indoors for putting out later. Begin planting and transplanting cold-hardy plants outdoors. Summer- and fall-blooming perennials can be divided. Prune shrubs and trees. Remove spent flower stalks from spring bulbs, but leave the foliage intact. Trim winter-damaged ground covers to 6 inch height. Lightly fertilize perennials as they emerge. Begin spring cleanup, if you haven't already. Check irrigation and make necessary repairs. Prepare planting beds.

Mid-Atlantic States: Frost danger continues. Finish sowing annuals, vegetables and herb seeds in flats indoors. Plant summer bulbs in containers indoors for putting out later. Plant bare-root perennials, potted roses, cool-season vegetable sets, annuals and strawberries in outdoor beds. Summer- and fall-blooming perennials can be divided and transplanted. Sow cool-season vegetable and herb seeds outdoors. Prune trees, summer- and fall-blooming shrubs. Remove spent flower stalks from spring bulbs, but leave the foliage intact. Trim winter-damaged ground covers to 6 inch height. Lightly fertilize perennials as they emerge. Remove winter mulches. Begin rose care. Construct trellises for climbing vegetables and vines, set tomato stakes.

Mid-South States: Frost is still possible. Plant trees and shrubs. Plant summer bulbs, divide and transplant perennials. Plant container gardens. Sow vegetable and herb seeds in the garden. Transplant vegetable and herbs outdoors. Pinch runners from strawberry plants. Prune spring-blooming trees and shrubs when flowering is completed. Continue to remove spent flower stalks from spring bulbs, but leave the foliage intact. Lightly fertilize annuals and vegetable seedlings. Fertilize spring bulbs when flowering is complete. Begin spraying fruit trees with dormant oil. Apply mulch to newly planted plants. Continue rose care. Install sod. Fertilize lawn when spring green-up occurs.

Lower South and Gulf States: Continue to plant container-grown trees and shrubs. Plant summer bulbs. Continue to divide and transplant perennials. Continue to plant container gardens. Sow warm-season annuals, vegetables and herbs. Transplant warm-season vegetable and herb seedlings. Shear spring-blooming trees and shrubs when flowering is complete. Shear conifers and evergreen shrubs. Pinch planted mums to delay bloom. Remove spent flower stalks from spring bulbs, but leave the foliage intact. Fertilize camellias, azaleas, annuals, container gardens, summer bulbs, fruit trees. Spray fruit trees with insecticide and fungicide. Thin excess fruit from fruit trees. Continue rose care. Plant warm-season grass seed and install sod.

Plains and Rocky Mountain States: Frost is still possible. If you haven't begun sowing flats of warm-season annuals and vegetables indoors, get started. If you already have flats of growing warm-season annuals and vegetables, it might be time to transplant them into larger containers. Plant summer bulbs in containers indoors for putting out later. Begin planting and transplanting cold-hardy plants outdoors. Summer- and fall-blooming perennials can be divided. Prune shrubs and trees. Remove spent flower stalks from spring bulbs, but leave the foliage intact. Trim winter-damaged ground covers to 6 inch height. Lightly fertilize perennials as they emerge. Begin spring cleanup, if you haven't already. Check irrigation and make necessary repairs. Prepare planting beds. Remove winter mulches. Begin rose care. Construct trellises for climbing vegetables and vines, set tomato stakes. Mulch newly planted trees and shrubs.

Pacific Southwest and Desert States: Plant trees, shrubs, summer bulbs, annuals and vegetable sets. Divide summer- and fall-blooming perennials. Sow vegetable, annual and herb seeds. Shear conifers. Prune spring-flowering trees and shrubs when bloom is complete. Remove spent flower stalks from spring bulbs, but leave the foliage intact. Fertilize azaleas, camellias, summer bulbs, vegetables, fruit trees, annuals, container gardens (including house plants). Continue rose care. Sow grass seed or install sod. Continue lawn care.

Pacific Northwest States: Frost danger continues. Plant shrubs, trees, summer bulbs. Construct trellises for climbing vegetables and vines, set tomato stakes. Plant annuals, warm-season vegetables and herb sets, and sow warm-season annuals, vegetables and herb seeds after last frost. Trim winter-damaged ground covers to 6 inch height. Divide crowded perennials. Shear evergreen shrubs and conifers. Prune spring-flowering plants when bloom is complete. Remove spent flower stalks from spring bulbs, but leave the foliage intact. Fertilize azaleas, camellias when bloom is complete. Fertilize fruit trees, container gardens, annuals, vegetables and herbs. Continue rose care. Mulch trees, shrubs and vegetables.

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Thursday, March 31, 2011

FAQ: How should I prepare a planting site for mondo grass?

Q. How should I prepare a planting site for mondo grass? The area is covered with weeds. Should I use landscape cloth?

A. Begin by taking a soil sample of the area. Contact your nearby Cooperative Extension Service for assistance. Follow the recommendations of the test results.

If your soil is friable (soft enough for planting), don't bother cultivating. Cultivating will stir up weeds seeds that have been dormant since Noah. If the soil is compacted and does need to be cultivated, allow time for new weeds to germinate. Spray weeds with glyphosate, allow weeds to die, then plant. Glyphosate does not persist in the soil, so it won't damage the mondo when  you plant. Do not lay landscape cloth. After planting, add about 3 inches of mulch. The mulch will discourage weeds.

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Tuesday, March 29, 2011

New Ground Cover Roses - Get The Drift®



Advertised as the newest thing in roses for small gardens, the same company that introduced the Knock Out® roses, is promoting Drift® roses. Knock Out® roses are extremely popular for their disease resistance and extremely long bloom period. Just so are the Drift® roses. These, however, are naturally dwarf and spreading, so you can use them as ground cover or in borders. If you have an unsightly slope or hillside, they should be just the ticket for adding color throughout the growing season. Plant them on terraces to cascade over the edges, and I can see a lot of potential for container gardens, too.  Varieties include Apricot Drift®, Icy Drift®, Sweet Drift® (a clear pink), Coral Drift®, Pink Drift® (a deep pink), Red Drift® and Peach Drift®. Flowers are small and doubled. Some are so frilly they remind me of heirloom cabbage roses.

To find them, go to the Star Roses web site and look for the link that takes you to their participating garden center search engine.

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Friday, March 25, 2011

Biltmore House and Gardens

Last fall, I returned to the mountains of North Carolina to revisit some of my favorite landmarks. One, in particular, has always fascinated me: the Biltmore House. I fondly remember many childhood trips in the mountains, traveling the Blue Ridge Parkway, visiting family friends in Celo, camping and picnicking, plunging all-nippley into Toe River, screaming down Sliding Rock, exploring the site of the Biltmore Forest School, visiting the Biltmore Estate, and stopping at the Biltmore Dairy shop for scoops of ice cream. (My grandmother agreed that Jersey cows produced the best.) Located beyond a gatehouse nearly the size of a modest home, even by today's standards, one of America's finest landmarks is mostly hidden from view. Follow me to see what lies behind the garden wall.

The story of Biltmore House and Gardens is one of enterprise. Located in Asheville, NC, the house is a grand New World chateau. The visionary owner was George Vanderbilt, grandson of the shipping and railroad entrepreneur, Cornelius Vanderbilt.

The Vanderbilt family descended from Jan Aertszoon Van der Bilt, a Dutch immigrant to New York (1650), who began his new life as an indentured servant. Apparently, Jan recognized a good opportunity, even as a servant, and latched onto it. By the time Jan's great-great-grandson, Cornelius, came along, the family was more comfortable financially. The Vanderbilt family built upon good foundations. But it was Cornelius who became its financial patriarch. While working for his father's ferry service in New York harbor, Cornelius learned from his father and decided, at age 16, to begin his own ferry service nearby. With a keen mind for business, Cornelius expanded his steamship and railroad ventures through very troubled times to become one of America's wealthiest men.

George Vanderbilt II, grandson of Cornelius, was less concerned about business. He was an art lover, collector and traveler by nature, but kept good principles in mind. While touring in the North Carolina mountains with his mother, at the age of 26, he decided to build a home there. Construction was begun by 1889. Quietly purchasing real estate, he eventually amassed an estate of about 228 square miles.

George hired architect Richard Morris Hunt and landscape designer Frederick Law Olmstead to help him with the work. Hunt is well-known for his designs including the facade of the Metropolitan Museum of Art, Clark Hall at Case Western Reserve University, and other Vanderbilt mansions unfortunately demolished. Hunt co-founded the American Institute of Architects. Olmstead and his firm are as famous for landmarks such as New York City's Central Park, numerous other parks, and many academic campuses. Craftsmen, builders and laborers from as near as down the road and from as far as Europe were brought to work on the project. A small village sprang up around the construction site. The results are the magnificent house and gardens you can visit today. Inspired by art of the French Renaissance and chateaux of the Loire Valley, the Biltmore House is a masterpiece.

Though intended to be a private residence, Vanderbilt envisioned Biltmore as a sustainable estate based upon progressive agriculture, dairy and forestry enterprises. Many of the parcels he had purchased from locals had been depleted by poor farming and timber practices. Olmstead suggested that Vanderbilt hire Gifford Pinchot to manage the land. The Vanderbilt estate became "The Cradle of Forestry" in the United States.

George was still a bachelor when he opened Biltmore House in 1895. Two years later, he met Edith Stuyvesant Dresser, married her in 1898, honeymooned in Europe, and brought her to Biltmore. They had one child, daughter Cornelia (1900-1976). Biltmore became a home for hospitality, diplomacy, scientific enquiry and the arts.

Vanderbilt died in 1914 of complications following an appendectomy. Edith raised Cornelia alone at Biltmore. In 1924 Cornelia married John Francis Amherst Cecil, a British diplomat. Cecil was a descendent of William Cecil, 1st Baron Burghley and chief advisor to Elizabeth I. Cecil opened the house to the public in 1930 to fund the continuing operation of the estate and generate interest in local tourism. The Cecil family owns and operates Biltmore today, and their enterprises continue to grow and flourish.

When you visit Biltmore House, you can view the surrounding countryside almost as though little has changed since the 1890s, except for the tower on Mt. Pisgah. Never mind that interstate highways and the city of Asheville have grown up around it. Biltmore remains as grand and peaceful as it seemed in the Gilded Age.

After touring the home, the garden visitor will pass through the magnificent wisteria arbor on the way to the shrub garden. Many of the shrubs are under-planted with perennials blooming in season. Paved paths make the walk quite comfortable. Though we visited in October, the spring garden trail was as beautiful in fall, often offering glimpses of the conservatory and the walled garden. Other trails wind through the surrounding woodland, featuring naturalistic plantings ranging from rhododendrons to bog gardens.

The Biltmore conservatory is a delight. Various sections showcase tropical plants as well as cacti and succulents. Though you might think that the gardens of Biltmore house are too grand and ambitious for the backyard gardener, many displays present ideas easy enough for the casual hobbyist to adapt. Container gardens, potted arrangements, perennial borders, interesting plant combinations, and even bird house displays will inspire you. I was impressed with the simple elegance of this dish of sedum adorning the south terrace of the house. There's always something to surprise, like this unique variegated kudzu vine, for example.

There is really too much to see and do at Biltmore House than will fit into a one-day visit. I recommend buying a two-day pass so that you can enjoy the grand enterprise at a leisurely pace. If you live near enough, purchase an annual pass and visit at least once each season.

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Wednesday, March 23, 2011

FAQ: What's wrong with my centipede lawn?

(I visited the site and took a soil sample to the local Cooperative Extension Service office for testing.)

Your lawn problems are related to shade, mowing height, soil pH, phosphorus and potassium levels, fertilizer, irrigation and soil erosion on the slope. In addition, tree roots are surfacing in the front yard. Sod will not grow over the visible roots.

Centipede grass does best in full sun. Most of your front lawn is shaded. There is nothing that can be done about the shade.

Your grass is cut too short. Centipede grass should normally be cut at a mowing height of 1-1/2" to 2", but due to the shade (lack of available light) the mowing height should be increased to 2-1/2". This provides more leaf surface and allows the sod to make the best use of available light.

Soil pH is too low (4.3). Raise it by applying dolomite (pelletized lime) at a rate of 55 pounds per 1000 square feet.

Phosphorus and potassium levels are too high. Centipede is very sensitive to high phosphorus levels. There is nothing that can be done to reduce the phosphorus and potassium levels. Time will take care of it. Do not use fertilizer containing phosphorus or potassium.

Apply 1-1/2 pounds of 34-0-0 or 1 pound of 46-0-0 fertilizer per 1000 square feet after spring green-up and again in mid-summer. Irrigate immediately after fertilizer application. Irrigate during dry weather to avoid stress.

There is nothing that can be done about the visible tree roots, though some soil could be added to repair eroded areas. If soil is added in the spring, sow annual rye grass to help prevent further erosion.

There are alternatives to maintaining a centipede lawn in difficult circumstances.

The first alternative would be to have the front lawn sodded with St. Augustine grass. St. Augustine is more shade tolerant. Sod roots should be in full contact with soil, so sod should not be put down over surfacing tree roots.

Another alternative would be to grow a more shade tolerant ground cover instead of sod. Trachelospermum asiaticum (Asiatic jasmine), Glechoma hederacea (Creeping Charlie), Ophiopogon japonicus (Mondo) and Herniaria glabra (Rupturewort) would be good choices. Alternative ground covers should be prevented from growing into neighbors' lawns.

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Wednesday, March 9, 2011

FAQ: Will my shrubs die if I cut them back too much?



Q. Our house will be painted soon. The painter says that my shrubs are in his way and should be cut way back so he can work. I'm afraid they'll die if I cut them back too much.

A. I understand. Frankly, your shrubs will probably suffer more from the painter, if you don't cut them back. If they are in his way, they may be overgrown and in need of renovation. You should be able to cut broadleaf shrubs drastically after the danger of severe freezing temperature is past. Spring and summer will bring fresh new growth. Conifers should not be pruned back severely.
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Thursday, February 10, 2011

Seed Catalog Time

Photo by Akil Mazumder from Pexels


Crocuses, winter aconites, cornelian cherries and robins tell us that spring is near. But seed catalogs in winter are earlier harbingers. From the mailbox, they tend to migrate throughout the house, first to the kitchen table, then to the bedside table, and finally to the reading basket beside the commode.

A gardening friend asked me last evening at dinner whether I had perused all the new issues. She was excited about the AAS winners and other new plants on the market, especially the grafted tomatoes. (Tomato grafting is a process by which favorite old varieties are spliced onto new, disease resistant rootstock.) I confessed that I had not. There are just too many to get around to.

As she spoke of grafted tomatoes, my mind wandered to recall names of some old-fashioned varieties. (To be polite, I didn't let on that my mind was wandering.) There's Arkansas Traveler, Beefsteak, Kimberly, Brandywine, Bull's Heart, Ox Heart, Italian Plum, Mortgage Lifter, to name a few. I don't know why such varieties were abandoned. Perhaps varieties with better taste and disease resistance were bred and widely accepted. Perhaps newer varieties were highly promoted and popularized disproportionately to their worth. If disease-prone, it may be that tomato grafting will allow some of those heirloom varieties to be enjoyed again.

If you would like to explore the world of heirloom tomatoes, check out Gary Ibsen's Tomato Fest. I've had no experience with the company, but it looks promising. Browsing their web site has whetted my appetite for home-grown tomatoes like the ones in my grandmother's garden.

I've always had a nostalgic place in my heart for whatever good that was lost. It was touched again last fall when we came upon a roadside stand with a pile of Kershaw melons and Candy Roaster squash. I hadn't grown any for about 25 years. It was as though I had found treasure. We stopped and bought fewer than I actually wanted, but all that we could handle for a few weeks. Of course, we kept the seeds for planting this spring.

If Kershaws, Candy Roasters and other heirlooms interest you, check out Seed Saver's Exchange. Diane and Kent Whealy founded the non-profit organization in 1975. I learned about Seed Saver's Exchange in the late '70s. Though I haven't been involved as a member, I've appreciated their work and I recommend Seed Saver's Exchange to anyone who seems interested.

So, during seed catalog time, I wouldn't be surprised if your mind is wandering and wondering if you can make room in your garden for heirloom vegetables and fruits. Of course you can.

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Saturday, January 29, 2011

Dumbarton Oaks


Within "America's most civilized square mile" is a distinguished house and garden known as Dumbarton Oaks that should be on your list of places to visit. The story of this remarkable estate began in 1703 when Ninian Beall, Indian fighter and Burgess of Prince Georges County, Maryland, was granted "seven hundred ninety and five acres more or less" by the "Powtomack River side at the mouth of Rock Creek." Beall called it the Rock of Dunbarton after a picturesque formation along the River Clyde in his native Scotland.

By 1798, the estate was reduced to only eighty acres after the establishment of Georgetown and the transfer of the national capital to Washington. The present house and gardens was later carved from that acreage. Ninian Beall's heir, Thomas Beall of George (so called to dignify himself among other Thomas Bealls) sold tracts of Georgetown Heights, a commanding area on the fringe of town which overlooked the Georgetown waterfront.

William Hammond Dorsey bought the Rock of Dunbarton tract. William was the son of John Dorsey, owner of a Baltimore shipping firm. Also known as "Pretty Billy", William was a Montgomery County lawyer probably drawn to Georgetown by speculation in real estate. By 1801 he had completed a new Federal-style home, two stories high with five bays. Through subsequent additions, it was incorporated into the house you see today.

Dorsey made money from his land speculation in Georgetown, but lost that and more during his riskier speculation in Washington. His wife, Anne Brooke, whom he married in 1790, died in 1802. He had to mortgage the Rock of Dunbarton, selling the smaller 22 acre estate to Robert Beverley and turning the mortgage over to General John Van Ness, to whom he was heavily indebted. Dorsey moved to a log and frame house near Brookville, Maryland which he had inherited from his wife. There he died in 1819.

I could readily write more of the history of ownership, which included Calhouns of South Carolina, Mackalls, Linthicums and Blounts. In addition to the interesting residents, the house was always full of fascinating and often famous guests. The register included Queen Liliuokalani of Hawaii, historian John Fiske, Alexander Graham Bell, Clara Barton, Susan B. Anthony, Julia Ward Howe, Frederick Douglass, President Taft, Edward Everett Hale and S. P. Langley. But the gardens of the estate will probably interest you most.

During the early years, Mrs. Henry Fitch Blount delighted in landscaping the property with boxwoods which she purchased from nearby homeowners. One particularly large specimen is said to have had a circumference of nearly a hundred feet.

The creation of the gardens began in earnest after Ambassador and Mrs. Robert Woods Bliss purchased the estate in 1920. After many years of an important but nomadic existence, the Blisses returned to the United States on assignment to the Department of State as Chief of the Division of Western European Affairs. The estate offered them what they dreamed of - a country manor in the city.

Soon after acquiring the property, Mrs. Bliss called on Beatrix Jones Farrand to assist in the garden's development. Farrand was one of the most notable American Landscape Architects. Her philosophy of landscape design was learned from her teacher Professor Charles Sprague Sargent, founder and director of the Arnold Arboretum. Farrand tried "to make the plan fit the ground and not twist the ground to fit a plan, and furthermore to study the tastes of the owner." She took care "to look at great landscape paintings, to observe and analyze natural beauty, to travel widely...and learn from all the great arts, as all art is akin."

It would be a mistake to attribute the garden entirely to Mrs. Farrand, for both women had definite ideas. Their cooperation in conceiving, adapting, evaluating and learning produced the masterpiece.

Though beyond the scope of this article, it should be noted that the Blisses acquired an extensive collection of Byzantine art, which is every bit as important to scholars, historians and artists as the garden masterpiece is to landscape architects, horticulturists and gardeners. Pre-Columbian art, Western Medieval and Renaissance art was added. Dumbarton Oaks is, indeed, a place to "learn from all the great arts."

Quod Severis Metes ("As ye sow, so shall ye reap") was carved on the dedicatory inscription, and is repeated throughout the garden. Wrought-iron sheaves of wheat symbolize the motto. True to their philosophy of generosity, the Blisses formally donated Dumbarton Oaks to Harvard University in November, 1940 as the Dumbarton Oaks Research Library and Collection.

In 1944, informal conferences were held at Dumbarton Oaks to consider the formation of an internation organization to promote peace and security. From those conferences emerged what would become known as the United Nations.

Much of the estate is screened from R Street by a garden wall, hedges and large trees including a massive Japanes maple and impressive Katsura tree. The screen certainly serves to whet the appetite. Upon arriving, garden visitors should obtain a brochure which includes directions for a self-guided tour. Follow me as we take a look at what grows behind that garden wall.

Approaching the estate from R Street, a curving driveway divides broad lawns flanked by majestic trees. Garden visitors should begin their tour at the Orangery, which was built in 1810. The interior of the Orangery is draped with a massive creeping fig (Ficus pumila) that was planted in 1860. The adjacent Green Garden, featuring a plaque honoring Mrs. Farrand, provides winter interest and a place for entertaining.

From The Green Garden, a gate leads to the Beech Terrace surrounds an enormous Fagus grandifolia. From there, steps lead eastward to the modified Urn Terrace.

The impressive Rose Garden, a favorite of the Blisses, is planted with over a thousand roses. Honoring their requests, their ashes were interred in the west wall.

The Fountain Terrace features two lovely lead fountains bordered by seasonal flower color. Just through the north gate, the Arbor Terrace features a wisteria arbor. Retracing your steps through the Fountain Terrace, you'll come upon Pan, with pipes, directing visitors to the Lovers' Lane Pool and Melisande's Allee.

The amphitheater above the pool seats about four dozen people. From there, the path leads through Melisande's Allee lined with silver maples. Herbaceous borders are usually planted with seasonal color.

The nearby Prunus Walk separates the Cutting Garden from the Growing Garden and walled vegetable gardens.

Cherry trees are featured on Cherry Hill, naturalistically underplanted with spring bulbs. Just beyond, an acre of forsythia blankets the slope in spring with a mass of yellow blooms. To the north, Dumbarton Oaks Park (donated to the U.S. government), maintains a sense of privacy in the midst of this very busy city.

As you follow the drive, you'll enjoy a double row of American hornbeams forming an ellipse surrounding a 17th century French fountain.  The Box Walk proceeds southward up the hill. Just to the west of the Box Walk, the Pebble Garden awaits. Though not designed by Farrand or the Blisses, it is sure to please.  It used to be covered with a shallow sheet of water, which served to enhance the color of the Mexican pebbles.

Nearer the house, the Star Garden features astrological symbols and was used for by the Blisses for entertaining and al fresco dining. A stairway leads past the Horsehoe Fountain downward to the Swimming Pool.

As I've noted, the gardens are awash with seasonal flowers, so you should visit during all four seasons to fully enjoy them. I hope this photographic tour has enticed you to visit Dumbarton Oaks. For updated information, visit Dumbarton Oaks web site.

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Wednesday, December 22, 2010

FAQ: Is it too late to plant fall bulbs?


As I write this - December 22 - it is too late to plant some bulbs, but not too late for most. It is too late to plant fall-blooming crocuses and colchicum. If not already planted, they might have bloomed while still in storage, used up their food reserves stored in the bulbs, and therefore be unfit to plant. However, it is not too late to plant daffodils, tulips and other spring-blooming bulbs, if they are still available. The only other consideration that might prevent you from planting now is if your ground is frozen.

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Tuesday, November 30, 2010

Corpse Flowers and Voodoo Lilies

About 20 years ago, a gardening friend of mine, very excited and breathless, lugged a 25 gallon plastic plant container into my garden shop. The pot was full of soil and heavy. Something was trying to emerge. I don't remember exactly what he said to convince me that if I would display it my customers would get the thrill of their lives, but I conceded.

"What is it?", I asked? He pulled a wrinkled page from his pocket, spread it out on a table, and said, "It's THAT!" The picture was grainy, but the thing looked massive and strange. We placed the container in full view of the front door.

Eventually a long, thick, flesh-colored stalk mottled with dark green, black and brownish spots emerged. It looked almost human...and diseased. A big leaf unfolded. The thing was well over 6 feet tall. Very impressive!

Visitors couldn't avoid it. Most would walk around it, cautiously touch it, walk around it some more, touch it, squeeze it, and do it again. Some backed off like they were thinking, "I can't touch this!"

The plant was Amorphophallus titanum. Modest taxonomists translate "amorphophallus" to mean "without definite form." A little more accurately, the entire name means "oddly shaped phallus of enormous strength." (I blush.) It is commonly called Titan Arum or Corpse Flower.

When we think of flowers, we imagine colorful, sweet-smelling blossoms attracting hummingbirds, butterflies and bees. Right? We think of cut flowers, corsages, bouquets and nose-gays. The Corpse Flower isn't that. Carry a bouquet of it and you smell like dead meat. The flower stinks mightily.

Fortunately, the thing did not bloom in my shop. If it had, I might have had to raze the store.

Plants such as the Corpse Flower aren't pollinated by the usual birds, butterflies and bees seeking sweet nectar. They're visited by vectors (pollinating agents) that feed on dung and carrion. What a fantastic design.

Titan Arum may be the most impressive of the Araceae family, but it grows larger than most gardeners can accommodate, and is not easy to obtain. Smaller members of the family are more appropriate for most of us. Typhonium venosum is a good choice. Its name means smoky and veined. The foliage turns very dark colored and the plant certainly looks veined. It also goes by other botanical names including Sauromatum guttatum, Sauromatum venosum, Arum venosum and Arum cornutum. Its common name is Voodoo Lily, and is native to tropical Africa and Asia.

Voodoo Lily grows 24 inches to 48 inches in height. The flower, which appears in late winter or spring, looks grotesque and bulbous with a burgundy spotted spathe and a dark spadix. Yes, it does smell, but not as mightily as the Titan Arum.

For the gardener who likes unusual plants, Voodoo Lily is perfect. It can be grown outdoors, but can also be brought indoors (for awhile) as a unique design element. Though it has a tropical appearance, it is reliably hardy in USDA climate zones 9 through 11, and can be grown into zone 6 if mulched well during winter. Plant it in partial shade to full shade in loamy soil with pH ranging from 5.6 to 7.5. To determine if your soil pH is hospitable to Voodoo Lily, take a soil sample to your nearby Cooperative Extension Service office for testing.

Cultivate the soil to 12 inches deep and remove all traces of weeds. Incorporate fertilizer or soil amendments according to Extension Service recommendations. Space the plants 6 inches to 10 inches apart, and three times as deep as the corm-like rhizome is wide. Planting depth is measured to the bottom of the hole. Water well when planting, but allow the soil to dry between watering.

Voodoo Lily is certainly a curiosity, and for that reason you should grow it. It's not difficult. Gardeners who enjoy growing plants of medicinal interest should also be interested for Typhonium is used in Chinese medicine. Keep in mind, however, that self-treatment is not recommended for Typhonium can be toxic if ingested and may cause allergic reactions in sensitive persons.

A planting of Voodoo Lily will certainly intrigue your friends and give you something to proudly show.

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Monday, November 29, 2010

How to keep neighbor's bamboo out of your yard.

Bamboo can be a very effective visual screen in the landscape, but some species can out-grow their welcome. There are two types of bamboo: those that grow in clumps, and those that spread via long rhizomes.  The later are known as 'runners.'  The runners are the ones that can cause problems, especially between neighbors.  Runners spread rapidly, so they screen quickly and economically, but they don't know when to stop.

If you choose to plant running bamboo, do your neighbor a favor and keep it contained.  If your neighbor's bamboo is invading your yard, you can block it by installing a bamboo barrier.

Begin by digging a trench around the bamboo planting.  Mechanical trenchers are available from tool rental companies, or you can hire a contractor to do it.  Depending upon the site and type of bamboo, the trench may be from 22 inches to 34 inches deep.

High-density polypropylene, 40 mil or heavier, makes an effective barrier. It is commercially available and often comes with installation instructions.  The plastic barrier should extend above the soil surface at least 2 inches.  Replace soil on both sides of the barrier, and pack it well.

When the bamboo rhizomes reach the barrier, the shoots will be deflected upward for easy removal.

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Monday, November 22, 2010

FAQ: How soon after receiving them should my bare root plants be planted?

Gardeners who wish to economize may purchase certain plants bare root.  Bare root plants are simply those which have had the soil removed from the roots.  Usually, young plants are sold that way.  When they have grown to the point that their roots are strong enough to be planted in the landscape, they are lifted, the soil rinsed off, and shipped.  Because the plants are small, the purchase price is lower.  Shipping without soil minimizes weight and shipping costs.  So bare root plants can be a very good bargain.

However, bare root plants are more vulnerable, and should be treated with care. Growers wrap them in moist packing material (usually in bundles), bag in plastic, box and ship as soon as possible.

Sun, wind, sub-freezing or blistering temperatures can damage or kill the plants.  Upon receipt, the package should be moved very soon to a shady, temperate location, and opened.  If left un-opened for a day or two, darkness can yellow the foliage and excessive moisture can cause the plants to rot.

Upon opening the package, set the plants upright in the box and maintain slight moisture around the roots. They should be okay if re-planted within a couple of days.  If they can not be re-planted within 48 hours, they may be 'heeled-in' to protect them. To do so, find a place in the garden where the bundled plants can be stored.  Dig a hole about 4 times as large as the bundled roots, place the roots in it, cover them with 6 to 8 inches of soil. Water well.  Soil should be in close contact with the roots.  If moisture is maintained, the plants may be stored like this for several days.

If you don't have a place in the garden for your plants to be 'heeled-in', you can do the same in a nursery container.  Half-fill a nursery container of appropriate size with potting soil.  Place the bundled plants upright in the center of it.  Fill in around them with more potting soil.  Water well, making sure soil is in close contact with the roots.

Though they can be stored like this for awhile, the answer to the question is: 'Better sooner than later.'

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Monday, November 15, 2010

How To Prepare Your Garden For The Winter

I believe you'll benefit from the following article by guest blogger, Julie Armstrong.

When you have a garden, you have to prepare it for each season. The spring planning and summer planning are normally the most straight forward. Planning your garden for winter is a bit harder for some as they are not sure what to do exactly. Below we will discuss what you can do to prepare for the winter months for your garden.

Before it gets too cold you need to harvest everything in your garden. This might be the garden vegetables that you have that are still growing. If it gets too cold, you will lose everything. Harvest it all before it is too late.

Prune anything in your garden for the winter months. This is best done in the late fall. Do not wait until spring as you will not get as much production out of things that are not properly pruned. This gets the plants ready to grow productively as soon as it is spring.

Do what you can to weed your garden. Remove anything that you do not want to be growing in the spring. If you wait too long, things will sprout up and cause problems in your garden during the spring. Getting it out now makes it much easier than waiting until things are growing more productively later.

Do what you can to work on your soil. Composting is a good practice for this since you will get healthy and productive soil. You can be making this all year long so it is always ready when you are going to plant. This will give your spring plants a huge advantage. Work on this during the winter.

You can still be growing something in your garden during the winter if you want to. You can use plastics, a green house, or even fish aquariums to help heat up the soil and make it warm enough to continue to grow fall plants even in the middle of winter. This is something to consider if you want to keep growing.

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Julie has been writing articles online for nearly 4 years now. She also publishes reviews of various consumer products.

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Wednesday, November 3, 2010

7206 Tokalon, Dallas, TX

7206 Tokalon is a pleasant address with attractive curb appeal near White Rock Lake in Dallas, Texas.  The quiet residential street lined with modest homes doesn't seem to hide anything extraordinary.  But the owner-designed landscape is quite remarkable.  The plant list includes nearly 100 different varieties of groundcovers, grasses, perennials, vines, shrubs and trees growing on a little over 1/2 acre lot.  That such a small landscape could include so many plants in a coherent design seems practically impossible.  But the homeowner is David Rolston, a prominent Landscape Architect in Dallas.

I met Dave and toured his garden during the 2009 Dallas Tour of Homes. The clean lines of the house and the street-side landscape, as well-conceived as they are, did not prepare me for the special place created behind the garden wall.

The 2 bedroom, 2.5 bath home was built in 1948 and honored as a Better Homes and Gardens House Of The Year.  After a house fire in 2006, it was remodeled by Architect Jim Manning to make it appear much larger with generous open spaces and an expansive view to the garden.

A small lot usually invites unwanted visual incursion from neighboring properties, but Rolston has created a private glade for family and friends to enjoy.  An imaginative collection trees and shrubs screen the outdoor living area from view without crowding available space for relaxing and entertaining.  At the same time, the screening provides lovely backdrops for an abundance of carefully selected ornamental grasses and perennials.  Even utilitarian corners are appropriately obscured, as with this bamboo screen.

In time-honored tradition, the garden is arranged into free-form rooms with water features, alcoves, and seating areas joined by paths and vistas.  A grassy stairway leads downward to a welcoming entertainment area warmed by a fire pit.

Rolston is very conservation conscious, and his design reflects it.  Not easily seen from the ground, he designed a tiny lawn in the form of a "green roof" sheltering the screened porch, providing a place for relaxation and play.  By minimizing lawn areas and substituting ground covers such as Mondo (Ophiopogon japonicus), he reduced mowing maintenance.  Taking advantage of the slope of the landscape, he created a catch basin at the end of the entertainment area to retrieve run-off and recycle it for irrigation.  The gravel drive and parking area allows rainfall to percolate downward.  He is also careful to use native ornamental plants where appropriate.

Dave is an artist at heart, as his use of beautiful objects, form, color and texture demonstrates.  Each season brings a new delight.  Autumn, for example, is resplendent with fall-blooming perennials, grasses and Japanese maples.

Too often, landscape architects wish to impose their own visions upon their clients' landscapes.  Not so with Rolston's firm.  An affable fellow, Dave makes friends easily.  Consequently, meeting his clients' needs and tastes is his goal.  As he says himself, One of the things I most enjoy is learning about what a person likes and who they are as people…then finding coherent ways to express that in the landscape

As he wishes for his clients, he wishes for himself.  Clearly, the garden at 7206 Tokalon is an expression of David Rolston's congeniality, hospitality, and love of gardening.

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Tuesday, October 26, 2010

Hunt For The Tiger Flower

Collectors of exotic plants should hunt for the Tiger Flower.  It belongs to the genus Tigridia (pronounced ty-GRID-ee-ah), which means like a tiger.  The name was derived from the Aztec, ocelo-xóchitl (roughly pronounced o-cel-o tsO-chi-tl, the tl sounding like a click somewhere between my tongue and cheek, but I can't explain it), meaning tiger flower.  The tiger in mind was certainly not the Asian tiger, and probably not the ocelot, as one might expect from the name, but the jaguar. Jaguars are spotted, and so are Tigridia flowers, usually in the center with outer colors ranging from cream and yellow to pink and red.

Tigridia includes around thirty species native to the western hemisphere from Mexico southward.  The genus was discovered by Europeans by the 18th century. Of course, earlier residents knew about the plants already.

Tigridia is a member of the Iridaceae family, along with Belamcanda, Crocosmia, Iris, Sparaxis, and such.  The sword-like foliage and the flower arrangement on the stems are obvious hints. T. pavonia (pronounced pav-ON-ee-ah) is the most readily available because it is very adaptable and showy.

T. pavonia was named for the Spanish botanist, José Antonio Pavón Jiménez of Caceras (1754-1844), who, along with Hipólito Ruiz López of Burgos (1754-1816) and French botanist Joseph Dombey (1742-1794), accompanied an expedition commissioned by Carlos III to explore Peru and Chile. It was a huge eleven-year commitment (1777-1788) for those young men to embark upon. In fact, Pavón was enlisted before he had completed his academic studies. I suppose the lure of adventure called. Following their exploration, Pavón and Ruiz published Flora Peruviana et Chilensis.

Dombey left the expedition in 1784 over disagreements with Hipólito, and took with him valuable information about Cinchona, the source of quinine treatment for malaria. In other words, it appears that he left the expedition to the mercy of mosquitos while taking the medicine with him. Ironically, Dombey's work, Péruvienne Flore, was published posthumously.

Interestingly, Tigridia may have been discovered by Europeans before the Pavón-Ruiz expedition.  The 1633 edition of John Gerard’s Herball or Generall Historie of Plantes includes a description of the ‘floure of Tygris’.  I've not been able to locate a description of it in the 1597 edition, but I haven't scanned all 1500 pages.  Apparently, Gerard (1545-1612) or one of the later contributors to the Herball thought the report about the plant to be false.

Two bulbous Plants, generally holden for feigned and adulterine. ... The second feigned picture hath been taken of the Discoverer and others of late time, to be a kind of Dragons not sure by any that have written thereof ... The root, saith my Author, is bulbous or Onion fashion, outwardly black, from which spring up long leaves, sharp pointed, narrow, and of a fresh green colour: in the middest of which leaves rise up naked or bare stalks, at the top whereof groweth a pleasant yellow floure, stained with many small red spots here and there confusedly cast abroad: and in the middest of the floure thrusteth forth a long red tongue or style, which in time groweth to be the cod or seed-vessel, crooked or wreathed, wherein is the seed. The vertues and temperature are not to be spoken of, considering that we assuredly persuade our selves that there are no such plants, but meere fictions and devices, as we terme them, to give his friend a gudgeon.

A gudgeon is a coarse fish, sometimes a pest, in Europe.  To give a gudgeon was to play a trick, so the 'floure of Tygris' was considered to be someone's attempt at a joke.  But the description of Tigridia is so spot-on that one can only surmise someone actually knew about it over 150 years before the Pavón-Ruiz expedition.

By the way, Gerard supervised the London gardens of William Cecil (1521-1598), chief advisor to Queen Elizabeth I.  William Cecil, 1st Lord Burghley, was an ancestor of William Amherst Vanderbilt Cecil, present operator of the Biltmore Estate, Asheville, NC.  But that's another story.

Pavón, Ruiz, Dombey and explorers before them weren't looking for pretty flowers.  They were looking for valuable plants.  Tigridia is still worth further study.

Indigenous people of South America ate the boiled bulbs and roots.  Cooked, they are said to taste like chestnuts.  Tigridia has been used medicinally to reduce fever, promote conception, and is said to be "good for the breast."  Furthermore, the plants may have had some ceremonial significance in Aztec culture.

Tigridia adds plenty of color to the garden.  You can plant Tigridia bulbs in spring directly in the ground or in containers.  Mix them amongst other perennials or annuals in free-form groupings.  The individual flowers open in the morning and close by late afternoon, so don't plan on cutting them.  However, the stems can produce flowers from spring to mid-summer, so you may enjoy a long-lasting show.

Tigridia pavonia is cold hardy in USDA climate zones 8 through 11, where they can be treated as perennials.  Space 3 inches to 6 inches apart and about 4 inches deep in full sun to partial shade in average, moist but well-drained garden soil.  Gardeners in colder climates can lift them in the fall and store them over winter in vermiculite or peat in a dry place where temperature can be maintained between 35 degrees and 40 degrees F.

Ideal pH for Tigridia ranges from 6.1 to 7.8.  Use a high quality grade of potting soil if growing in containers.

Before planting, take a sample of your garden soil to your local Cooperative Extension Service office.  For a nominal fee, they will send it to a lab for analysis and return a report to you.  Your soil sample report will include fertilizer recommendations based upon the results of the test.  Follow the instructions.

Prepare the planting bed by cultivating at least 8" deep, removing all traces of weeds.  If you prefer to skip the soil test, a fine all-around practice for spring-flowering bulbs is to mix 5 tablespoons of 10-10-10 fertilizer and 2 cups of bone meal per ten square feet area of bulb garden.  Repeat the application when shoots appear, but be careful that fertilizer does not come into direct contact with plant tissue.

Tigridia not only adds color and texture to the garden, but historic and cultural interest, as well.  Gerard's Herball considered it too good to be true.  Certainly you should add the Tiger Flower to your collection.

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Monday, October 25, 2010

FAQ: Is it always necessary to till the soil before planting?


Q. Is it always necessary to till the soil before planting?

A. Though I recommend it as a first step, it is not always necessary. If your soil has never been worked, it is probably compacted and will need tilling. But if your garden soil is friable, tilling should not be necessary. If you are adding soil amendments such as fertilizer, compost, greensand, sulphur or pelletized lime, tilling can help to incorporate them thoroughly into the soil.

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Thursday, October 14, 2010

Cheerful Harlequin Flowers

Cheerful Harlequin Flowers put on a colorful show in any garden.  Their star-shaped flowers in a rainbow of bright colors are produced on 12 to 18 inch long stems in mid-spring to early summer.

The genus, Sparaxis (pronounced spa-RAKS-iss), includes about fifteen species native to the Cape Province of South Africa.  The name refers to the flower bracts which appear to be torn.  Sparaxis has been known at least since the 1800s, though a new species, Sparaxis maculosa, was discovered as late as 1988.  Sparaxis is a member of the Iridaceae, along with Ixia, another South African genus.  In fact, Ixia and Sparaxis have sometimes been confused.  Among their most obvious shared characteristics are corms, sword-like foliage and the flower arrangement on the stems. S. tricolor is the most readily available, though collections of mixed species are often offered for sale.

Depending on the species, flower centers have black centers, yellow centers, or a combination of both.  The leaves are very attractive, too, adding vertical interest to the garden.  You can plant them in spring anywhere directly in the ground or in containers.  If allowed to go to seed, sparaxis germinates readily and will produce lots of new plants.  The corms produce offshoots which can be divided during dormancy and replanted for a greater show the following year.

Sparaxis adds plenty of color to the garden.  Mix the corms amongst other perennials or annuals in free-form groupings.  They're perfect for bulb gardens and rock gardens, too.  Because the cut flowers are long-lasting, you'll want plenty of them in your cutting garden.  Sparaxis is drought-tolerant, too, so those who live in drought-prone zones or must limit their water use will love them.  This is definitely one to add to your list of plants for xeriscaping.

Sparaxis is cold hardy in USDA climate zones 9 through 11, but the corms are so inexpensive that gardeners in colder zones treat them as annuals. Space 6 inches to 12 inches apart and about 1-1/2 inches to 3 inches deep in full sun to partial shade in average, well-drained garden soil.  Field studies at the Institute of Ornamental Plants and Architecture of Landscape, Agricultural University of Lublin, Poland between 2000 and 2003 reported that, in general, early planting at 1-1/2 inches depth resulted in more flower spikes with more flowers per spike.  So my advice to you is to get them in the ground as soon as the soil can be worked.

Ideal pH for sparaxis ranges from 6.1 to 7.8.  Use a high quality grade of potting soil if growing in containers.

Before planting, take a sample of your garden soil to your local Cooperative Extension Service office.  For a nominal fee, they will send it to a lab for analysis and return a report to you.  Your soil sample report will include fertilizer recommendations based upon the results of the test.  Follow the instructions.

Prepare the planting bed by cultivating at least 8" deep, removing all traces of weeds.  If you prefer to skip the soil test, a fine all-around practice for spring-flowering bulbs is to mix 5 tablespoons of 10-10-10 fertilizer and 2 cups of bone meal per ten square feet area of bulb garden.  Repeat the application when shoots appear, but be careful that fertilizer does not come into direct contact with plant tissue.

When fall approaches and plants become dormant, gardeners in cooler climates can dig the corms and store them over winter.  To do so, remove dried foliage, brush soil from the corms, pack them in ground sphagnum or dry sawdust, and store them in a dark, well-ventilated area with a temperature range of 68 to 77 degrees Fahrenheit.

Planted liberally, Sparaxis will make a wonderful show in your spring to summer garden. You'll be delighted with this beautiful South African native.

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Wednesday, October 13, 2010

Night Fragrance of Exotic Tuberose

Night heightens the senses and deepens emotions.  Longings and impressions are not so arresting in the light of day.  On summer nights, when windows are opened and hearts yearn, the night fragrance of tuberose ignites passions around the world.

The botanical name is Polianthes tuberosa (pronounced polly-AN-these toober-OHS-ah).  Polianthes means "gray flower".  Tuberosa refers to the tuberous root structure.

Polianthes is in the Agavaceae family, and is believed to be native to Mexico.  You'll recognize the family resemblance in foliage and flower.  Plant size is about 24 inches.  Flower color is almost white.  Bloom season is from mid-summer to fall, depending upon the region where it is grown.

Agaves are the sources of other intoxications such as pulque, mezcal and tequila.  Aztecs called polianthes, Omixochitl (pronounced oh me' zu che' tl), meaning "bone flower", referring to the bloom color.

In Iran it is known as Gole Maryam or Jane Maryan and woven into the music of love longing.

In Hindi, it is Rajnigandha.  Though the rajnigandha story is a bit different, the desire of the heart is ever present.

Indonesians know it as bunga sedap malam.  Chinese call it WanXiangYu.  No matter the language, the translation is the same: Night Fragrance.

According to legends spread abroad, young girls from Europe to Asia were warned that smelling the perfumed air might induce romantic moods.  Rather than taking care, I expect that ladies slept next to open windows dreaming of love.

Tuberose blossoms are often mingled in wedding bouquets.  Parts of the flowers are popular ingredients in perfume.

That Polianthes is probably native to Mexico but deeply embedded in the psyche of people around the world begs the question, How did it come to pass?

Persia (Iran) and India have been allies, often of the same blood, perhaps as far back as 2000 BC.  There is strong evidence that Muslim traders traveled to Indonesia as early as the 8th century AD.  So it doesn't require a stretch to speculate trade with Mayans or Aztecs even before the Spanish Conquistadors.  Since the Iberian peninsula was home to Christians and mudejar following the Reconquest of Spain, there should be no doubt that tuberoses were carried around the world after the 15th century.  It has been a small orb after all.

Tuberoses are perfect for containers, bulb gardens, perennial borders, fragrance gardens and cutting gardens.  They thrive in USDA climate zones 8 through 10. Gardeners in colder climates may grow them in containers, protecting them over winter.  Plant outdoors in full sun to partial shade.  Rich garden soil that is well-drained and with pH ranging from 5.6 to 7.8 is fine.  For container growing, use a good grade of well-drained, peat-based potting soil.

Before planting, take a sample of your garden soil to your local Cooperative Extension Service office.  The service usually provides collection bags.  For the most basic recommendations, you may be charged a nominal fee.  For more information such as micro-nutrient and organic content you may be charged more.  Their recommendations are well worth it.

Planting usually begins in spring, though fall planting is possible in warmest climates.  Unless you are naturalizing them in the lawn, prepare the planting bed by cultivating at least 6 inches deep, removing all traces of weeds. Compacted soil should be cultivated to 8 inches deep.
 
Your soil sample report will include fertilizer recommendations based upon the results of the test.  A fine all-around practice for Spring-flowering bulbs is to mix 5 tablespoons of 10-10-10 fertilizer and 2 cups of bone meal per ten square feet area of bulb garden.  Repeat the application when shoots appear, but be careful that fertilizer does not come into direct contact with plant tissue.

The tubers should be planted no deeper than 3 inches.  Depth is measured to the bottom of the hole.  Recommended plant spacing is 6 inches to 12 inches.

Plant tuberose in your garden this spring, then open your windows for gentle breezes to perfume your home.

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Monday, October 11, 2010

FAQ: Can you suggest a juniper ground cover that will not be overcome by grasses and weeds? When should we plant?

Q.  We have a large (approximately 100 ft x 40 ft) sunny hillside  of red clay in north Georgia and would like to plant an economical, fast-spreading juniper as a ground cover that will not be overcome by wild grasses and weeds.  What would you suggest?  Should we plant now or next spring?

A.  In all honesty, there is not a ground cover juniper that can not be overcome by wild grasses and weeds.  Ground covers suppress weeds but don't eliminate them entirely. The best you can do is to kill weeds and grasses when planting, plant your ground covers in clean soil, apply 3" or 4" of mulch (measure the depth after the mulch has settled) or a pre-emergent herbicide, and maintain a weed-free environment until the junipers have matured.  If you apply a pre-emergent herbicide, it will have to be re-applied every few weeks to maintain an effective barrier.  Make sure the chemical is labeled for use with junipers.  Follow all label directions.  You must also prevent weeds from encroaching from outside the planting bed. Since you are planting on a hillside, you should use a straw mulch.  Bark or wood chips will wash down the slope.

Fall is an excellent time for planting.  Though you won't see much top-growth over winter, the roots will be establishing themselves.  This will give you a jump on spring.

Juniperus conferta 'Blue Pacific' and J. horizontalis 'Wiltonii' (also known as 'Blue Rug') are fast-growing, economical ground cover junipers.

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Friday, October 8, 2010

Herbal Oils Help To Preserve The Bounty Of Your Garden

What do you do when you have more herbs to harvest in your garden than you can deal with?  You can eat a lot, dry them, freeze them or make herbal oils.  Each of those present you with more options, but let's think about herbal oils.

I've tried a few, and so have you.  They might have been purchased, received as gifts, or rubbed on by your masseuse.  I can't remember a single one that wasn't delightful.  The not-so-secret secret is that you can make them yourself.  Herbal oils help to preserve the bounty of your garden, are wonderful for cooking, easy to make, attractive on the shelf, and make great gifts.

There are a gazillion-willion possible ingredients and uses for herbal oils.  I can't begin to present specific recipes and applications for you to try, so I'll stick to the basics.  For the sake of simplicity, let's make cayenne pepper oil.

You'll need a sterilized bottle and cap or stopper, dried red peppers that are small enough to fit through the bottle-neck, and oil.  As I mentioned in my article, Pesto Is The Solution..., nothing preserves the essence of fresh herbs like olive oil.  But olive oil isn't the best oil for every occasion.  In fact, lighter oils and those with less pronounced flavor tend to highlight the taste of the herbs.  For sake of economy and usefulness, start with canola oil.  It's healthy and versatile.

Here are the steps:
  • Gather a few small dried red peppers.  Six or eight will do.  If you don't have any on hand, you can purchase some from your local grocery store.  You'll find them among the spices or in the Mexican food section.
  • Sterilize your bottle.  After sterilizing, let them drain and dry. 
  • Place the peppers on a cutting board and whack them a little bit to bruise them.  I use a small meat tenderizing hammer.  Just break the skin; don't pound them to pieces.
  • Stuff the peppers in the bottle.
  • Heat the oil in a small stainless steel saucepan on low temperature until it's a little warm.
  • Pour the oil into the bottle.
  • Let the contents cool.
  • Close the bottle tightly with a lid or cork.
  • Set the bottle aside in a cool place away from light for about a week. 
  • Use it.
You may be asking, "How shall I use this pepper oil?"  The answer is that you should use it as you would for any recipe that requires some oil and hot pepper.  You can also use it for vinaigrettes with a touch of heat.

You may be asking, "How long will this oil last?"  Your homemade oil won't last as long as commercially processed herbal oils.  It should be good for a couple of months.  If you remove the peppers from the oil, it will last longer.  The reason is that the peppers, though dried, still contain a little water. If the water weren't there, your peppers would be dust or less.  Water harbors life-giving fluid for little creatures that can spoil your oil.  But if you remove the peppers from the oil, your bottle won't look so pretty.  "What to do?"  Use it or refrigerate it.  If you have trouble using a larger bottle of oil, make your herbal oils in smaller batches and store in smaller bottles.

There are many different oils to choose from.  Canola, peanut, safflower and sunflower are good choices.  Remember what I said before about lighter-tasting oils highlighting herbal flavors.

Popular herbs and spices for oil infusions include basil, bay, cayenne, chives, cilantro, dill, garlic, mint, marjoram, oregano, peppercorn, rosemary, savory, tarragon, and thyme.  For massage oils, consider eucalyptus, lavender and dried citrus peels.  Experiment with different combinations.  You'll have great fun.

Herbal oils make lovely gifts.  Attractive bottles enhance the appearance.  You can also decorate the bottles by dipping the necks in colored wax, applying descriptive labels in calligraphy, wrapping with attractive fabric, tying with ribbon or raffia.  A gift card including a suggested recipe will be appreciated.  The recipients may think their gifts are too beautiful to use, but remind them that the herbal oil won't last forever.

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Thursday, October 7, 2010

Pesto Is The Solution To A Bumper Crop of Basil

Last fall, our friend, Donna McKenna, dropped off a couple of large plastic garbage bags filled with fresh basil plants.  Someone had given more of their bumper crop than they could use themselves.  They were pulling up the rest.  Donna used as much as she could, sold some at the local farmers' market, and still had bushels of basil.

Even though we grow our own herbs, we were glad to get her leftovers.  But we couldn't possibly use so much basil at once, so I set about making lots of pesto.  I reasoned that it would be a better alternative than freezing or drying the raw herb.  Nothing preserves the flavor of fresh herbs like olive oil.

If you are growing basil in your garden, try my recipe for pesto with a Southern twist:
  • 2 cups fresh basil leaves, packed tightly
  • 1/2 cup freshly grated Parmesan or Romano cheese
  • 1/2 cup extra virgin olive oil
  • 1/3 cup chopped walnuts or pecans (authentic Italian pesto contains pine nuts)
  • 3 garlic cloves, minced
  • Salt and freshly ground black pepper to taste
Equipment: A food processor or blender.  If using a blender, make sure the lid has an opening on top so ingredients can be added without removing the entire lid.

Procedure:

Put the basil and nuts in the blender, make sure the lid is secure, and give the machine a few short bursts (pulses) of power. Add the garlic and pulse a few times more.  This gets the basil chopped a little, but not too much.

Slowly pour in the olive oil in a steady stream while the blender is on.  Everything should be well mixed and chopped.  Add the grated cheese and pulse some more.  Scrape down the sides with a rubber spatula.  Taste the mixture.  Remember that the cheese adds a little salt.  Add more salt and pepper to taste.

This will give you about 1 cup.  Needless to say, I made a lot more than that.

I spooned the pesto into little plastic containers with lids, about 1/3 cup capacity, and put them in the freezer.  I've found that the basil tends to soak up some of the oil, even when frozen, and becomes pasty.  But stirring in a little more oil before using restores the pesto to the right consistency.  Though a year has passed, we still have some in the freezer and it tastes great.

Pesto is wonderful on toast, pasta, vegetables, chicken, veal and pork dishes, to mention a very few.  My favorite is roasted red bell pepper stuffed with feta cheese, pesto spooned over the top, and served warm.  Since we have a bumper crop of red and yellow bell peppers this year, we're eating a lot of them with pesto.

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Put Your Garden To Bed And You'll Rest Better, Too.


When fall arrives, many gardeners are tempted to put off until spring what they should do today. Yield not to temptation. Necessary chores completed in a timely fashion will save time and labor, and give you a sense of satisfaction.  In other words, put your garden to bed and you'll rest better, too.

Before you begin your winter hibernation, complete these garden tasks:

Tidy up. Dead plants and garden debris provide shelter for insect pests and the four-footed varieties. Not only that, decaying plants also harbor fungi and plant diseases. But don't carry the debris street-side for trash collectors; compost it. Composting turns it into rich, organic material for next year's garden.
Most of us have childhood memories of Saturday afternoons raking up large piles of fallen foliage and jumping into them. Then the leaves were raked again and carted off to the curb. But there are better alternatives. If you insist upon a well-groomed lawn, collect the leaves and compost them. However, I prefer leaving them on the lawn and chopping them to bits with my lawnmower. A mulching attachment will reduce them to pieces small enough that they will filter into the grass, self-compost, and add to the organic content of your lawn. In fact, a mulching mower used all year long will return grass clippings to the lawn with the same result.

Prune. Pruning includes dead-heading your perennials. When bloom-time is over, many plants become unsightly. Dead-heading will improve the appearance of your garden and remove unwanted seeds. Furthermore, you will be making room for new spring growth, especially if you have interplanted with spring-blooming flower bulbs. If pruning trees or shrubs in autumn, only remove dead or dying tissue. Heavy pruning may stimulate new growth at a time when you need it least. New growth late in the year can be severely damaged by cold and compromise the health of your plants.

Fertilize. Fall fertilizing is done for different reasons than spring fertilizing. In spring, the object is to stimulate new top growth for lush foliage and abundant bloom. Fall fertilizing, however, is to stimulate root growth. Plants must have a good foundation to build upon next spring. Whether fertilizing lawn, garden, shrubs or trees, the purpose is the same. Fertilizers for fall application are formulated differently than those for spring. Nitrogen (N) content will be lower or in a slow-release form. Phosphorus (P) and potash (K) will be at relatively higher levels. When reading fertilizer formulations, know that the order is N-P-K. In addition to granular fertilizers, other organic additions may include compost and bone meal.

Plant flower bulbs. Many of us think of planting fall bulbs when we see crocuses, daffodils and tulips popping up in the spring. Too late! Fall is the time to plant those, so don't delay. It's best to plan your spring-flowering bulb purchases in July, order in August or September, and plant in September or October. But planting in October or November is still not too late. Be sure to buy high-quality bulbs in larger sizes. Larger bulbs produce more flowers sooner. Typically, discounters and big box stores carry smaller bulbs because they want to offer the lowest prices. You get what you pay for. Sometimes you don't even get what you pay for, so buy from a reputable source.

By the arrival of spring, gardeners can't wait to get into their gardens. What a disappointment to be faced with garden chores from fall still waiting. Get into your garden now while the air is clear and the temperature brisk. You'll enjoy it, feel better having done it, and your garden will be in better condition come spring.

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Wednesday, October 6, 2010

FAQ: When is the best time to prune muscadine vines?

Q. I have inherited my fathers property which include his coveted muscadine vines. He could put anything in the ground and it would grow. These vines are at least 20+ years and it looks as if they need a little pruning. Dad made it to 90 years old and I don't think he could care for them the last couple of years like he use to. There are still some green leaves on them and I was wondering if this month (October) is a good time to do some pruning?  We live in south central Louisiana in case the region would need to be taken into consideration.

A. You could do some pruning now if you simply need to thin out some of the vines or trim them up so they don't run along the ground.  But if you need to do some radical pruning, as described in my Youtube videos, you should wait until the vines drop their leaves and become dormant.  Around here, that would be after Thanksgiving.  Don't be alarmed if the spurs (remaining stubs of the cut vines) drip water during warm spells; the will not "bleed" to death.

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FAQ: How long before my saffron crocus bulbs sprout?

Q. This is the first time I've grown saffron crocuses and was wondering how long before I can expect to see foliage poking out of the ground?

A. I understand that you planted them very recently. Your Crocus sativus bulbs, which sprout and bloom in fall, need to establish roots before they begin growing foliage. That may take 10 days or more, but the time is not exact because of various factors such as outdoor temperature, planting site (should be well-drained soil), planting depth, etc. I've seen fall-blooming crocuses try to grow in the box before planting, but that's not a good thing. You may get a few blooms the year in which you plant them, but you'll have a better bloom the following year.

To learn more, check out my blog article for more information on crocuses.

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