Mazus! A solution plant for moist soil.

 

Mazus reptans

 
Most folks have one – a low, moist spot in the lawn. You’ve been meaning to do something about yours, but haven’t decided what. Here’s an idea. Plant mazus! So long as the soil isn’t under water or bone dry, mazus could be the ground cover for you.

Creeping Mazus (Mazus reptans) is a dense low-growing ground cover with bluish to white flowers that just LOVES moist soil. It grows to about 2” in height. Each plant spreads to about 12” across, but strikes roots as it grows, so for all practical purposes it spreads indefinitely.

Creeping Mazus produces lots of interesting lavender blue or white flowers resting on evergreen to semi-evergreen foliage from spring to summer. It’s cold-hardy to USDA climate zone 4, and tolerates heat into zone 9. Though it thrives in full sun and partial shade, partial shade is recommended particularly in hotter areas.

As long as the soil is consistently moist, mazus will thrive. The soil pH can range from 6.0 to 8.5.

Mazus tolerates some foot traffic, so it’s an ideal lawn substitute. You can plant it under downspouts and any other area where water temporarily collects.

Fertilize in spring to early summer. I think that organic lawn fertilizer is best, but if you choose to spread synthetic fertilizer, use a low-nitrogen 5-5-5 mix. Be careful to avoid fertilizers that might burn the tender green leaves. If you broadcast granular fertilizer with a spreader, be sure to water it in after applying to rinse off the plants.

It ought to go without saying, but I’ll say it anyway. Don’t use a broadleaf weed herbicide on your lawn where mazus is planted.

You might like mazus so well that you want to plant more in other moist areas. You can buy more, or you can propagate your own. Clip off runners about 6” long and stick the lower ends into small plastic pots with some moist premium potting mix. Keep them in the shade until they root, which shouldn’t take more than a few days. The rooted cuttings can be transplanted wherever needed. You can also divide your plants in early spring by slicing across a mature plant with a sharp spade, digging up one half and transplanting it elsewhere.

Growing Creeping Mazus really is that easy. Get started with your new mazus ground cover. 

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Great Plants For Your Rain Garden

In an earlier blog article – How To Create A Rain Garden – we discussed an important element – rain garden planting zones. Here's what you need to know.

Divide your rain garden into zones, and select plants appropriate to each. Depending on the size of the garden, you might choose plants ranging in size from low ground covers to perennials, small or even large shrubs.

    • Zone 1 is the deepest where water will stand the longest. Plants for this area should be able to thrive in standing water for awhile.

    • Zone 2 is an intermediate area where water will stand for short periods, but drain away. It is just above and wraps around Zone 1. Plants for this area should be able to grow in wet or dry ground.

    • Zone 3 is the uppermost, wrapping around the other two, and will be the driest. Plants for this area should be able to withstand periods of dry weather.

Here are some plant suggestions for each zone.

Zone 1

• Blue Sedge with its blue-green arching leaves is a perfect plant for that area where drainage is a problem. It's ideal for naturalizing, bog gardens, rain gardens, water gardens, container gardens, and erosion control. As a lawn substitute, it will tolerate some foot traffic. It's also deer resistant! Carex 'Bunny Blue'® is a very attractive variety.
• Japanese Sweet Flag thrives in wetlands like along ponds, rain gardens or pools, and can even grow when submersed. It's one of the best grassy solutions for those problem areas with poorly drained soils.
• Golden Creeping Jenny is an excellent ground cover solution for any size area. It's also successful in container gardens, hanging baskets, bog gardens and perennial borders. Because it tolerates some foot traffic, Lysimachia is perfect around patios and between stepping stones.
• Mazus is a preferred ground cover for moist soils of any size area. Lush green leaves form a low, dense mat. Foliage is evergreen in warmer climates to semi-evergreen in cooler zones. Small, lavender or white flowers bloom from spring to summer.
•  Mondo grass is tolerant of wet areas as well as dry. It’s deer resistant, and tolerates some foot traffic.
• Royal Fern is a lovely native species that performs well in a wide range of climate zones. Light green fronds with burgundy-tinged edges emerge in spring, and turn medium green during the growing season. In fall, fronds turn yellow shades. Royal fern is clump-forming. Mature height is 24 inches to 60 inches. Foliage is dormant in winter. Royal fern is deer resistant.

Zone 2

• Appalachian Sedge is a graceful plant, native to the Eastern U.S. It has very fine, dark green, weeping blades, 12" long.  The leaf blades are evergreen in warmer climates. It has a clumping habit, and spreads slowly, making it suitable for borders. It's a great ground cover and lawn-grass substitute in dry shade.
• Creeping Lily Turf is a choice plant for a low maintenance ground cover in sun or shade. Evergreen foliage forms a dense, grassy covering that tolerates foot traffic, making it a fine lawn grass substitute, especially for those areas you'd prefer not to mow. It can take a period of wet weather, as well as drought.
• Blue Star Creeper is amazing. It tolerates a wide variety of soil conditions – wet or dry. If you're looking for a low-maintenance, low-profile, quickly growing ground cover with a long bloom season, consider Blue Star Creeper. Use it where you want a low-maintenance cover at a distance from high-traffic areas.
• Mondo grass, as mentioned above, is tolerant of a wide range of soil conditions. If you need a low-maintenance, lush, evergreen grass substitute for full sun to shade that tolerates a wide range of soil conditions, we highly recommend Mondo.
• Pennsylvania Sedge is a fine native plant choice for dry shade.  Use it for naturalizing, and erosion control. Pennsylvania sedge is deer resistant, too.

Zone 3

• Achillea – Yarrow. Achillea has long-lasting flowers, is drought-tolerant, repels pests, and is aromatic.
• Ajuga – Bugleweed. Ajuga is a drought-tolerant evergreen plant prized for its dynamic color that stays compact and thick year round.
• Asiatic Jasmine is a very desirable for ground cover and borders in warmer climates. It can be neatly edged for a manicured appearance. Asiatic Jasmine thrives in sun or shade, suppresses weeds, and resists hungry deer. Its dense habit will slow any rapid flow of water.
• Appalachian Sedge is mentioned above. It’s a fine plant for Zone 3 also.
• Black-eye Susan attracts butterflies. Birds get enthusiastic about the seeds. All varieties are reasonably drought-tolerant. They're especially suited to naturalizing, wildflower meadows, cutting gardens, wildlife gardens, native plant collections, heritage and cottage gardens. But they're wonderful in any perennial garden or border.
• Blue Pacific Juniper is an excellent ground cover solution for medium to large coastal gardens. It thrives in dry, sandy soils, is salt tolerant, and is very effective for erosion control. It's deer resistant, too!
• Coneflower is a tough and ever-popular addition to any perennial garden. Echinacea is loved around the world for its beautiful, showy flowers and reputed herbal remedies. It’s an ideal native plant for the dry area around the rain garden. If only all our plants could be so useful.
• Coreopsis is a bright-flowered plant with blossoms shaped like large asters. It does well in dry areas, and is well-suited to wildlfower gardens. Coreopsis is native to the U.S., and, thankfully, its ornamental value is widely appreciated.
• Pennsylvania Sedge is mentioned above. It is a good choice for Zone 3, also.

These are not exhaustive lists of plants suitable plants for rain gardens. But, with these plants to choose from, you can certainly create a lovely, low-maintenance, and sustainable rain garden.

My creeping phlox died. What, if anything, can be done?

Creeping Phlox (Phlox subulata)

Q. I planted creeping phlox in May. I lost some within the first few weeks. I figured I would loose a couple, however every one of them died. I'm not sure why they died, the flower bed has a sprinkler system and it waters early morning and late evening. I thought phlox was a hearty plant. What, if anything can be done? Thank you!

A. I'm sorry to hear that your creeping phlox didn't survive. You said that they were watered twice per day. I'm sure your phlox drowned.

The soil condition for Phlox subulata should be well-drained to dry. The sun exposure should be "full sun." You didn't say whether they were planted in full sun. Should you think about planting phlox again, make sure they get full sun. You'll also need to reduce the irrigation significantly. Otherwise, I recommend you consider ground covers that will tolerate moist soil and partial shade.

Lysimachia, for example, thrives in full sun to partial shade in USDA climate zones 3 through 10 in moist soil. Because it needs consistent moisture, partial shade is recommended in the hottest climates, though heat itself is not the issue. Recommended soil pH ranges from 5.6 to 7.5.

Acorus gramineus thrives in moist to wet soil in partial shade to full shade.

Carex grows in wet to very moist soils but prefers evenly moist, well drained, loamy, sandy or clay soils. It may tolerate shallow standing water for awhile, but never dry soil. Depending on the species, they like partial to full shade. Some tolerate full sun.

Mazus reptans produces blue or white flowers. It is cold hardy in USDA climate zones 4 to 9, thriving in consistently moist soil in full sun to partial shade. Some protection from the sun is appreciated in very hot climates. Recommended soil pH is 6.1 to 8.5. Plants spread rapidly, rooting as they go. Small, plug-like portions can be dug and re-planted elsewhere.

These are but a few suggestions. I hope this helps.

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Lawn Grass Substitutes

Mondo - Ophiopogon - lawn

For some homeowners, lawn work is therapeutic and the end result is a matter of pride.  Others consider it to be necessary, but time-consuming and an unwelcome expense.  Some folks think lawns are ecologically unfriendly, requiring chemical applications and too much water.  The fact is that lawns can be all of that, more or less.  It depends on your perspective.  But this guide is not intended to argue the virtues and vices of grass.  The purpose is to stimulate your thinking about options and to inform you of various plant alternatives to the typical lawn.

What practical purposes do lawns serve?

• Lawns prevent wind and water erosion.
• Lawns moderate soil and air temperatures.
• Lawns suppress growth of undesirable plants.
• Lawns create buffers.
• Lawns allow visibility.
• Lawns provide resilient living surfaces for outdoor activities.

Grass does all of these so well.

When thinking about alternatives, you should consider which of these purposes you need to satisfy, then determine whether anything else will work so well for you as grass.

As with any landscape plan, you'll need to assess your circumstances and choose your plants accordingly.  Consider your maximum and minimum seasonal temperatures, exposure to sun or shade, available water, slope, soil characteristics.

Almost any low-growing plant will help to prevent erosion, moderate temperatures, suppress weeds, create buffers and allow for visibility.  But fewer accommodate foot traffic in outdoor living spaces as well as grass.  Even grass has its limits.

The following plants tolerate some foot traffic, especially if planted around flag stones or pavers, and are easy to step over.  Some are drought-tolerant.  The list is not exhaustive.  The descriptions are very brief.

Acaena inermis.  Also known as New Zealand Bur.  Best varieties are 'Purpurea' and 'Blue Haze'.  Evergreen foliage of 'Purpurea' turns red in full sun.  Foliage of 'Blue Haze is blue-gray color.  Creamy white flowers in early summer.  Full sun to partial shade in USDA climate zones 6-9.  Grows to 6" in height.  Drought tolerant.  Low tolerance for foot traffic.

Acinos alpinus.  Also known as Alpine Calamint or Alpine Catmint.  Pinkish purple flower from spring to fall.  Full sun to partial shade in USDA climate zones 5-10.  Height approx. 6".  Low tolerance for foot traffic.

Ajuga reptans.  Also known as Carpet Bugleweed.  Bronze to variegated foliage.  Blue flowers on short spikes in spring.  Full sun to full shade.  USDA climate zones 3-9.  Well-drained soil.  Drought-tolerant.  Best varieties include 'Burgundy Glow' (3" to 4"), 'Chocolate Chip' (2" to 4"), 'Gaiety'/'Bronze Improved' (3" to 4").  Medium tolerance for foot traffic.

Arenaria balearica.  Also known as Mossy Sandwort.  Evergreen foliage.  White blooms in spring.  Full sun to partial shade in USDA climate zones 4-11.  Grows to under 6" in height.  Medium tolerance for foot traffic.

Chrysogonum virginianum 'Pierre'.  Also known as Green and Gold.  Yellow flowers over green foliage.  Full sun to partial shade.  USDA climate zones 5-9.  Moist soil.  Grows 4" to 6" in height.  Low tolerance for foot traffic.


Cymbalaria aequitriloba.  Also known as Kenilworth Ivy.  Evergreen foliage.  White to purple flowers in spring to summer.  Light shade to full shade in USDA climate zones 7-10.  Drought tolerant.  Grows to 6".  Low tolerance for foot traffic.

Euonymus fortunei 'Kewensis'.  Glossy green foliage only 1/4" to 5/8".  Full sun to full shade.  Drought-tolerant.  USDA climte zones 4-9.  Grows to 3".  Medium tolerance for foot traffic.

Ficus pumila.  Also known as Creeping Fig.  Green or variegated foliage.  Can climb.  Drought-tolerant.  Full sun to partial shade in USDA climate zones 8b-10.  Grows from 1/2" to 1 1/2" in height.  Medium tolerance for foot traffic.

Glechoma hederacea 'Variegata'.  Also known as Variegated Ground Ivy or Variegated Creeping Charlie.  Blue flowers spring to summer.  Full sun to full shade in USDA climate zones 3-9.  Grows to under 3".  Low tolerance for foot traffic.

Herniaria glabra.  Also known as Green Carpet.  'Sea Foam' is a good variety.  Evergreen green or variegated leaves turn red in winter.  White flower.  Full sun to partial shade in USDA climate zones 6-9 (some gardeners report success in zones 5 - 11).  Grows to 3".  High tolerance for foot traffic.

Houstonia caerulea.  Also known as Bluets.  Light blue flowers from spring to fall.  Full sun to partial shade in USDA climate zones 3-8.  Low tolerance for foot traffic.

Hydrocotyle sibthorpioides.  Also known as Pennywort.  Small white flowers in summer.  Requires moist soil.  Full sun to partial shade in USDA climate zones 8-10.  Medium tolerance for foot traffic.

Laurentia (Isotoma) fluviatilis.  Also known as Blue Star Creeper.  Blue flowers in spring.  Evergreen to semi-evergreen foliage.  Full sun to partial shade in USDA climate zones 5b to 10.  Grows to 3".  High tolerance for foot traffic.

Leptinella gruveri.  Also known as Brass Buttons.  The hybrid 'Platt's Black' is very beautiful.  Small yellow flowers in summer.  Forms dense evergreen carpet.  Full sun to partial shade in USDA climate zones 8-10.  High tolerance for foot traffic.

Lotus corniculatus.  Also known as Bird Foot Trefoil.  Dense dark green mat.  Orange buds and yellow flowers from spring to fall.  Full sun in USDA climate zones 3-9.  Grows to 4".  High tolerance for foot traffic.

Lysimachia nummularia 'Aurea'.  Also known as Golden Creeping Jenny.  Low, mat-forming plant with gold leaves and yellow flowers.  Full sun to partial shade in USDA climate zones 3-10.  Grows to 3".  Low tolerance for foot traffic.

Mazus reptans.  Blue or white flowers in spring.  Fast-spreading.  Full sun to partial shade in USDA climate zones 4-9.  Grows to 2" in height.  Medium tolerance for foot traffic.

Muehlenbeckia axillaris.  Also known as Creeping Wire Vine or Maidenhair Vine.  Low, mat-forming plant.  Small white flowers in summer.  Full sun to full shade in USDA climate zones 5-10.  Drought-tolerant.  Grows to 4".  High tolerance for foot traffic.

Ophiopogon japonicus 'Nana'.  Also known as Dwarf Mondo Grass.  Evergreen, dark leaf blades 1/8" wide.  Drought-tolerant.  Full sun to full shade in USDA climate zones 6-10.  Grows to 3".  Medium tolerance for foot traffic.

Phlox subulata.  Also known as Thrift or Creeping Phlox.  Pink, red, white, lavender flowers in early spring.  Tolerates drought and wide range of soil conditions.  Full sun in USDA climate zones 3-9.  Grows 4" to 6" in height.  Medium tolerance for foot traffic.

Potentilla neumanniana 'Nana'.  Also known as Creeping Cinquefoil.  Dark green leaves.  Evergreen.  Yellow flowers in late spring.  Full sun in USDA climate zones 5-10.  Grows to 3".   High tolerance for foot traffic.

Pratia angulata.  Also known as Star Creeper.  Dark green leaves.  White to blue flowers in spring.  Red fruit in fall.  Full sun to partial shade in USDA climate zones 6-10.  Grows to 2".  Low tolerance for foot traffic.

Pratia pendunculata.  Also known as Little Star Creeper.  Syn. Isotoma, Laurentia.  'County Park' and 'Tom Stone' are desirable varieties.  Blue to purple star-shaped flowers from spring to fall.  Full sun to partial shade in USDA climate zones 7-10.  Grows to under 6".  Low tolerance for foot traffic.

Rubus calycinoides.  Also known as Creeping Raspberry.  Dark green, puckered foliage.  Evergreen.  Drought-tolerant.  Full sun to partial shade in USDA climate zones 6-10.  Grows to 2".  Low tolerance for foot traffic.

Sagina subulata.  Also known as Scotch Moss.  Green or gold foliage with small white star-shaped flowers.  Forms low, dense mat.  Full sun to partial shade in USDA climate zones 4-9.  Grows to 3".  High tolerance for foot traffic.

Sedum album.  Also known as Baby Tears.  Teardrop-shaped green foliage turns red in fall.  White flowers in summer.  Drought-tolerant.  Full sun to partial shade in USDA climate zones 4-9.  Grows to 4".  Low tolerance for foot traffic.

Sedum acre.  Also known as Gold Moss or Gold Stonecrop.  Soft yellow-green foliage turns red in winter.  Yellow flowers.  Drought-tolerant.  Full sun to partial shade in USDA climate zones 4-9.  Grows to 4".  Medium tolerance for foot traffic.

Sedum hispanicum var. minus.  Also known as Blue Moss, Blue Stonecrop or Tiny Buttons.  Soft blue-gray groundcover produces small pink flowers in summer. Drought-tolerant.  Full sun in USDA climate zones 2-9.  Grows to 4".  Low tolerance for foot traffic.

Sedum lydium.  Also known as Mossy Stonecrop.  Succulent green leaves turn burgundy-red when stressed by drought or cold.  Drought-tolerant.  Full sun in USDA climate zones 5-9.  Grows to 4".  Low tolerance for foot traffic.

Sedum makinoi 'Ogon'.  Small evergreen foliage gold in color with pink shades.  Yellow-green flowers in spring.  Drought-tolerant.  Full sun to partial shade in USDA climate zones 7-9.  Grows to 2" in height.  Low tolerance for foot traffic.

Sedum requieneii.  Also known as Miniature Stonecrop.  Very small green leaves and yellow star-shaped flowers in summer.  Drought-tolerant.  Full sun to partial shade in USDA climate zones 4-9.  Grows to less than 2".  Very durable.  High tolerance for foot traffic.

Sedum spurium 'Dragon's Blood'.  Red and green variegated leaves in whorled clusters.  Red flowers in late summer.  Drought-tolerant.  Full sun in USDA climate zones 3-9. Grows to 3".  Medium tolerance for foot traffic.

Sedum spurium 'Fuldaglut'.  Semi-evergreen, bronze fleshy leaves whorled around the stem.  Turns burgundy in fall.  Pink-red flowers in summer.  Full sun to partial shade in USDA climate zones 3-9.  Grows to 3" in height.  Medium tolerance for foot traffic.

Sedum spurium 'John Creech'.  Semi-evergreen, fleshy foliage.  Pink flowers in early spring.  Full sun in USDA climate zones 3-9.  Grows to 2" in height.  Medium tolerance for foot traffic.

Sedum spurium Tricolor'.  Variegated green, red and white foliage.  Evergreen.  Pink flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 3-9.  Grows to 4" in height.  Low tolerance for foot traffic.

Sedum tetractinum.  Also known as Chinese Sedum.  Flat evergreen foliage, light green in color turns reddish in fall.  Yellow flowers in summer.  Drought tolerant.  Full sun to partial shade in USDA climate zones 4-9.  Grows to 3" in height.  Low tolerance for foot traffic.

Thymus doerfleri 'Doone Valley'.  Also known as Wild Thyme or Doone Valley Thyme.  Lemon-scented golden variegated foliage is evergreen.  Produces lilac flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 4".  Medium tolerance for foot traffic.

Thymus praecox 'Elfin'.  Also known as Miniature Thyme.  Gray-green foliage forms tight mat.  Light pink flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 5-10.  Grows to under 2".  Medium tolerance for foot traffic.

Thymus praecox 'Pink Chintz'.  Gray-green fragrant foliage is evergreen.  Light pink flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows 1" to 3" in height.  Medium tolerance for foot traffic.

Thymus praecox ' Coccineus'.  Also known as Red Creeping Thyme.  Scented foliage turns bronze in winter.  Red flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 4" in height.  Medium tolerance for foot traffic.

Thymus praecox 'Albiflorus'.  Also known as Wild Thyme or White Creeping Thyme.  Scented evergreen foliage.  White flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 4" in height.  Medium tolerance for foot traffic.

Thymus praecox 'Pseudolanuginosus'.  Also known as Wooly Thyme.  Scented gray foliage is evergreen.  Pink flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 3" in height.  Medium tolerance for foot traffic.

Thymus citriodorus.  Also known as Creeping Lemon Thyme.  Green, lemon-scented foliage is evergreen.  Lilac flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 3" in height.  Medium tolerance for foot traffic.

Thymus citriodorus 'Archer's Gold'.  Also known as 'Archer's Gold' Lemon Thyme or Creeping Lemon Thyme.  Bright gold, lemon-scented foliage is evergreen.  Lilac flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 3" in height.  Medium tolerance for foot traffic.

Thymus x 'Spicy Orange'.  Green, needle-like foliage is fragrant and evergreen.  Pink flowers in summer.  Drought-tolerant.  Full sun in USDA climate zones 4-9.  Grows to 2" in height.  Medium tolerance for foot traffic.

Trifolium repens 'Atropurpureum'.  Red-bronze evergreen foliage with green margin.  White flowers in spring and summer.  Full sun to partial shade in USDA climate zones 4-9.  Excellent for erosion control.  Grows to under 6" in height.  Medium tolerance for foot traffic.

Veronica liwanensis.  Also known as Turkish Speedwell.  Evergreen, deep green color.  Blue flowers in summer.  Full sun to partial shade in USDA climate zones 4-8.  Grows to under 4" in height.  Low tolerance for foot traffic.

Veronica penduncularis 'Georgia Blue'.  Evergreen foliage turns bronze in fall.  Blue flowers in spring.  Drought tolerant.  Full sun to partial shade in USDA climate zones 4-9.  Grows 3" to 6".  Medium tolerance for foot traffic.

Veronica repens 'Sunshine.'  Also known as 'Sunshine' Creeping Speedwell.  Yellow green foliage.  Bluish-white flowers in spring to summer.  Full sun to partial shade in USDA climate zones 6-9.  Drought-tolerant.  Grows to 1" in height.  Medium tolerance for foot traffic.

Veronica surculosa 'Waterperry'.  Also known as 'Waterperry Blue'.  Lustrous semi-evergreen foliage turns bronze in winter.  Blue flowers in spring.  Full sun to partial shade in USDA climate zones 4-8.  Grows to under 4".  Medium tolerance for foot traffic.

Veronica x 'New Century'.  Evergreen, deep green color.  Foliage turns bronze in winter.  Blue flowers in summer.  Full sun to partial shade in USDA climate zones 4-9.  Grows to 4".  Medium tolerance for foot traffic.

Viola labradorica.  Also known as Labrador Violet.  Foliage changes color throughout seasons, green-blue-black.  Small lilac flowers from spring to fall.  Partial shade in USDA climate zones 3-8.  Grows to under 4".  Medium tolerance for foot traffic.

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Discover Mazus

Homeowners spend a lot of time, energy and money trying to get grass to grow in the wrong places. Wet areas can be most frustrating. Plants (some more than others) need oxygen in the soil to thrive, and grass is no exception. In fact, it needs plenty. That is why aerating the lawn is a useful practice. But sometimes too much moisture seems to accumulate, particularly in low-lying areas, so grass won't grow. So what do you do with a soggy bottom?

The best solutions often take advantage of seemingly difficult situations, working with rather than against them. Instead of trying to change the hydrology of wet areas, it may be better to incorporate them into "bog" gardens featuring water-loving plants. Mazus is such a plant.

Mazus (pronounced MAY-zus) comes from the Greek meaning "teat", referring to the swellings near the center of the flower.

Wouldn't you like to follow plant explorers around to listen to their conversations?

"What does that look like to you?"
"Well, I think it looks like...a teat."
"Hmmm. That's what I was thinking, too. We've been away from home far too long."

The genus contains around 30 species of which very few are available, and not widely. Mazus reptans ("reptans" means "creeping") is most common. The evergreen to semi-evergreen, low-growing plant is native to the Himalayan region and parts of Australia. Mature height is usually from 1-1/2" to 2". Lots of purplish-blue flowers appear in late spring to early summer. A white-flowered form is also available. Foliage is light-green and oval-shaped.

Mazus reptans is cold hardy in USDA climate zones 4 to 9, thriving in consistently moist soil in full sun to partial shade. Some protection from the sun is appreciated in very hot climates. Recommended soil pH is 6.1 to 8.5. Plants spread rapidly, rooting as they go. Small, plug-like portions can be dug and re-planted elsewhere.

Prepare the planting bed for Mazus by cultivating at least 4" deep, removing all traces of weeds. Take a soil sample to your nearest Cooperative Extension Service office to determine the pH and to receive any recommendations they might offer. Compacted soil should be cultivated to 8" deep. Composted manure may be incorporated into the soil. Fertilizer may be used. If you choose to do so, incorporate 10-10-10 fertilizer at a rate of no more 2 lbs. per 100 square feet into the top 4" to 6" of soil. Avoid synthetic fertilizers contacting any part of your plants.

Mazus can be planted any time you have a shovel handy, but it is very important to water more frequently during hot weather to avoid plant stress.

Plant Mazus 8" to 12" apart. Keep in mind that my spacing recommendations are approximate. Dig planting holes into the cultivated soil a little less deep than the depth of the growing container. Place the plants into the holes and back-fill. Press soil around the roots. Do not cover the root balls with soil. The tops should be slightly exposed. Add a top-dressing of mulch around the plants, not on top of them, about 2" deep. Irrigate thoroughly.

Apart from watering (if necessary) and weeding until established, maintenance is minimal. Mazus has few serious pest and disease problems. Most only cause cosmetic problems. Aphids may be attracted to fast-growing shoots. Fungus may attack during spring when temperature fluctuates widely. Cold weather may damage foliage in coldest regions. It tolerates a little foot traffic.

If you need a low-maintenance, flowering ground cover for wet sites, this may be your plant.

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