Seed Planting Calendar

If you’re new to growing vegetables or just need a refresher, here’s a basic planting calendar to get you started. The dates are approximate and will vary depending on your location, the weather, and the time you have available. If you aren’t able to grow your own seedlings, you can buy them at farmers’ markets, food co-ops, local greenhouses and farm stores in the spring and just follow the transplanting dates below. Visit our fact sheets page for more information on the basics of organic vegetable gardening, making your own seed starting mix and more.

March 1Start indoors: celery, celeriac (3/1 to 3/15), onions and leeks (2/20 to 3/15), kale
March 14Start indoors: leaf and head lettuce
March 21Start indoors: peppers
April 1Start indoors: broccoli, Brussels sprouts, cabbage, cauliflower, eggplant
April 14Start indoors: tomatoes
Start outdoors: beets, carrots, leaf and head lettuce, peas, parsnips (4/15 to 5/15), radishes, shallots (4/15 to 5/30), spinach, turnips, bunching onions for summer harvest (4/15 to 5/1), onions from seeds or setsTransplant out: leaf and head lettuce, onion seedlings
May 1Start indoors: melons, squashes, cucumbersStart outdoors: beets, carrots, leaf and head lettuce, peas, radishes, spinach, Swiss chard (5/1 to 5/31), turnips
Transplant out: broccoli, Brussels sprouts, cabbage, cauliflower (5/1 to 5/15 when 4 to 5 weeks old), leeks (5/1 to 5/15)
May 14Start indoors: broccoli, Brussels sprouts, cabbage, cauliflower for fall cropStart outdoors: beets, leaf and head lettuce, peas, radishes, spinach, turnip
June 1Start outdoors: bush green beans, pole beans, beets, Chinese cabbage (5/30 to 7/30), carrots, corn, leaf and head lettuce, peas, potatoes, radishes, spinach, turnip
Transplant out: celery and celeriac (6/1 to 6/15), tomatoes
Transplant or direct seed out: melons, squashes, cucumbers
June 14Start outdoors: beets, corn, leaf and head lettuce, peas, radishes, rutabaga, spinach, turnip
Transplant out: cannabis, 4/1 sowing of eggplant, 5/15 sowing of broccoli, Brussels sprouts, cabbage, cauliflower
June 21Start outdoors: bush green beans, carrots
July 1Start outdoors: beets, corn (short season varieties), kale, leaf and head lettuce, peas, radishes, spinach, turnip
July 14Start outdoors: bush green beans, beets, carrots, leaf and head lettuce, peas, radishes, spinach, turnip; hardy bunching onions for fall and spring harvest (7/15 to 8/15)
August 1Start outdoors: beets, leaf and head lettuce, peas, radishes, spinach, turnip
August 14Start outdoors: leaf and head lettuce, radishes, spinach, turnip
September 1Start outdoors: leaf lettuce, radishes, shallots for spring green onions, spinach (sow now for fall crop and now until ground freezes for spring crop, well mulched over winter)
October 1Start outdoors: garlic
Planting calendar adapted from an article by Jean English

Happy Growing! Looking for more gardening resources? Consider signing up for our Gardeners Newsletter, which is sent once per month.

Become a MOFGA member to support these free resources and receive our quarterly newspaper, which is is considered to be one of the leading information sources on organic agriculture and sustainable living practices.

Scroll to Top