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Regional Gardening Guide for March

Garden Tips for the Beginning of Spring

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Daffodil Plants
Photo: © Marie Iannotti

March is a guessing game in the garden. Will it warm up soon? Will it stay warm? Will the rains start/stop? About the only thing we can count on is that March too shall pass. So go ahead and push the envelope, but keep the row covers handy.

Everyone should have their seeds started, their trees and shrubs pruned and their tools ready to go. After that, the most important thing is to have patience. It's tempting to take advantage of warm days, but even in Zones 9 & 10, spring gets the last word in the garden.

Here are regional gardening tips to take with a spoonful of judgement.


Everyone

  • Start feeding houseplants again. Repot, if necessary.
  • Avoid walking on wet soil in the garden
  • Get your soil tested


Alaska


Florida

  • It's tropical season, but cold spells happen. Be prepared.
  • Keep watering, especially new plants.
  • Start replacing cool weather annuals with summer varieties
  • Get perennials in the ground to establish them
  • Plant summer bulbs, tubers, etc., like blood lily, caladiums, canna and elephant ears
  • Begin planting warm season vegetables, before the temperature shoots up
  • Finish up winter shrub pruning and cut back any flowering shrubs as the blossoms fade
  • Transplant container grown citrus trees. Fertilizer established trees now. Wait 4 - 6 weeks to feed newly planted trees


Hawaii


Mid-Atlantic

  • Hardy annuals can go out even before last expected frost
  • Wait until the soil warms and dries before planting summer bulbs, tubers, etc.
  • Perennial vegetables and fruits can be planted once danger of frost has passed and the ground is workable.
  • Prune roses before the buds break
  • Plant shrubs when the ground warms.


Midwest

  • Start Seeds Indoors
  • Cut back grasses
  • Check shrubs for damage. Finish pruning.
  • Start spraying fruit trees
  • Remove burlap coverings from around evergreens
  • Cut back sub-shrub perennials like Buddleia and Caryopteris


Northeast

  • Good luck planting peas for St. Pat's Day. You'll have better luck if you wait for the soil to get warmer and drier.
  • Start seeds of warm season vegetables and flowers indoors
  • Force some spring blooming trees and shrubs like forsythia, pussy willow, quince and crab apples.
  • Keep tabs on plant crowns that may have heaved out of the ground during a thaw
  • Begin removing mulch at the end of the month, as temperatures increase


Northern California


Pacific NW

  • Amend soil and side dress existing plants
  • Start seeds of greens indoors
  • Plant peas at the end of the month
  • Deadhead early bloomers
  • Keep mulching
  • Be diligent about hunting slugs
  • Set out apple maggot traps


Southeast


Southern California

  • Scout for slugs & snails
  • Divide fall blooming perennials
  • Spray fruit trees
  • Start seeds, if you haven't already


Southwest

  • Time to pull back the mulch and start warming the soil.
  • You can still get a freeze. Keep covers handy.
  • Plant vegetables
    • Outdoors: beets, corn, greens, lettuce, potatoes
    • Indoors: eggplant, melons, peppers, tomatoes, squash
  • Plant summer bulbs

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