Among the most frequently asked questions, "When is the best time to...", is near the top of the list. Here are a few gardening tasks for June organized by region.
Northeast States: Plant bare-root and container-grown perennials, potted roses, cool-season vegetable sets, annuals and strawberries in outdoor beds. Sow warm-season vegetables and herbs outdoors. Summer- and fall-blooming perennials can be divided and transplanted. Divid spring-blooming bulbs. 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. Continue rose care. Fertilize shrubs, annuals and container gardens every 10 to 14 days. Mulch trees and shrubs to conserve moisture. Mow lawn regularly.
Mid-Atlantic States: Continue planting trees and shrubs and container gardens. Sow vegetable and herb seeds in the garden. Transplant vegetable and herbs outdoors. Finish pruning spring-blooming trees and shrubs. 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. Continue spraying fruit trees. Apply mulch to newly planted plants. Continue rose care. Install sod. Mow lawn regularly.
Mid-South States: Continue to plant container-grown trees and shrubs. 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 now that 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. Continue rose care. Plant warm-season grass seed and install sod if you can irrigate regularly.
Lower South and Gulf States: Continue planting and transplanting outdoors, but make sure you provide adequate irrigation during June. Perennials can be divided. Prune shrubs and trees. Continue rose care and lawn maintenance. Thin vegetables in the garden. Continue composting.
Plains and Rocky Mountain States: Continue planting 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 since 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 Southwest and Desert States: Sow and plant warm season annuals, vegetables and herbs. Divide early-blooming perennials. Prune diseased and dead wood from trees and shrubs. Deadhead perennials. Fertilize trees, shrubs, container gardens, vegetables and herbs, house plants. Continue rose care. Add debris to compost pile. Continue lawn maintenance.
Pacific Northwest States: Plant container-grown trees and shrubs, perennials, ground covers, annuals, roses. Divide spring bulbs and perennials. Plant or sow warm season herbs and vegetables. Prune dead or diseased branches from trees and shrubs. Fertilize trees, shrubs, container gardens, vegetables and herbs, house plants. Continue rose care. Add debris to compost pile. Continue lawn maintenance.
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