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MAY Gardening To-Do List

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Zone 3

  • Set out cool-season annuals
  • Set out seedlings of warm-season annuals
  • Set out summer-flowering bulbs
  • Plant fall-blooming bulbs
  • Plant balled-and-burlapped, container, and bare-root fruit trees
  • Plant cool-season lawns and permanent ground covers
  • Feed and aerate cool-season lawns and loosen thatch
  • Plant bare-root perennial vegetables
  • Plant seedlings of cool-weather vegetables
  • Sow seeds for frost-tolerant perennials
  • Divide and replant summer- and fall-blooming perennials
  • Divide and replant spring-blooming perennials after bloom 
  • Plant bare-root and container roses
  • Uncover roses for spring and apply dormant spray
  • Plant balled-and-burlapped, container, and bare-root trees, shrubs, and vines
  • Apply dormant spray to trees, shrubs, and vines before buds swell
  • Plant tender shrubs and vines
  • Plant summer-blooming shrubs and vines
  • Plant frost-tolerant trees
  • Plant needle-leafed evergreens
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Zone 4

  • Set out cool-season annuals
  • Set out seedlings of warm-season annuals
  • Set out summer-flowering bulbs
  • Plant fall-blooming bulbs
  • Divide and replant crowded winter and spring-blooming bulbs after leaves yellow
  • Plant balled-and-burlapped, container, and bare-root fruit trees
  • Apply dormant spray to fruit trees before buds swell
  • Spray apples, peaches, and pears that have been affected with canker problems
  • Plant permanent ground covers
  • Plant, feed, and aerate cool-season lawns and loosen thatch
  • Plant bare-root perennial vegetables
  • Plant seedlings of cool-weather vegetables
  • Set out herbs  Sow fast-growing warm-season vegetables
  • Sow seeds for frost-tolerant perennials
  • Divide and replant spring-blooming perennials after bloom
  • Plant container roses
  • Plant balled-and-burlapped, container, and bare-root trees, shrubs and vines
  • Apply dormant spray to shrubs and vines
  • Plant tender shrubs and vines
  • Plant summer-blooming shrubs and vines
  • Plant frost-tolerant trees
  • Plant needle-leafed evergreens
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Zone 5

  • Set out cool-season annuals
  • Set out seedlings of warm-season annuals
  • Set out summer-flowering bulbs
  • Plant fall-blooming bulbs
  • Divide and replant crowded winter and spring-blooming bulbs after leaves yellow
  • Plant balled-and-burlapped, container, and bare-root fruit trees
  • Apply dormant spray to fruit trees before buds swell
  • Spray apples, peaches, and pears that have been affected with canker problems
  • Plant permanent ground covers
  • Plant cool and warm-season lawns
  • Plant bare-root perennial vegetables 
  • Plant seedlings of cool-weather vegetables
  • Sow fast-growing warm-season vegetables
  • Sow seeds for frost-tolerant perennials
  • Sow seeds for tender perennials
  • Divide and replant spring-blooming perennials after bloom
  • Plant container roses
  • Plant balled-and-burlapped, container, and bare-root trees, shrubs, and vines
  • Apply dormant spray to shrubs and vines
  • Plant tender shrubs and vines
  • Plant summer-blooming shrubs and vines
  • Plant balled-and-burlapped trees
  • Plant trees in containers
  • Plant frost-tolerant trees
  • Plant needle-leafed evergreens