Horticulture Planting Calendar

Jan
Feb
 
  • Start broccoli, cabbage and cauliflower indoors.
Mar
 
  • Transplant February cabbage-family seedlings outdoors.
  • Start tomatoes, peppers and eggplant under lights.
  • Sow beets, chard, lettuce, onions, peas, potatoes, radishes, spinach and turnips outdoors.
Apr
 
  • Plant annual seeds of asters, cosmos, marigolds, zinnias.
  • Thin direct-seeded crops as they sprout.
  • Sow carrots and parsnips.
  • Late in the month, plant squash, zucchini, pumpkins and cucumber seeds indoors in large peat pots.
May
 
  • Fill containers for summer color.
  • Plant dahlias, gladiolus and calla lilies.
  • Harden tender transplants by putting them out in a sheltered location and bringing them in at night.
  • When soil warms, seed corn and beans.
  • Transplant starts of heat-lovers such as tomatoes, peppers, squash and cucumbers.
June
 
  • Plant fall perennials; asters, chrysanthemums.
  • Replant replacement crops when early lettuce, mustard greens, bok choys and spinach mature.