March is the month when most gardens really wake up. In colder regions, it is prime time for indoor seed starting and preparing beds. In milder climates, spring planting is already rolling, and in the warmest zones, the garden may be producing heavily while you begin shifting toward heat-loving crops.
Zones 1-7a: These zones experience cold winters with extended periods of freezing temperatures. In March, monitor soil conditions, thaw cycles, and late frosts as you prepare for early outdoor sowing. Indoors, this is a busy month for starting cool-season crops and hardy flowers under lights or in a greenhouse so they are ready to transplant as soon as the weather settles.
Zones 7b-9a: These zones experience mild winter weather and are warming quickly in March. Many cool-season crops can be direct sown outdoors, and succession planting helps keep harvests coming as temperatures rise. It is also a great time to start warm-season favorites indoors while keeping frost protection on hand for unexpected cold snaps. And of course, sprouts and microgreens are always in season indoors!
Zones 9b-12: Depending on your area, March can be peak garden season in these warm-winter zones. Many crops planted earlier are now producing, and this month often marks the transition from late cool-season planting to the start of warm-season gardening. In the hottest areas, you may begin planting heat lovers while timing your last rounds of tender cool-season crops before warmer weather arrives.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Leek Seeds - Large American Flag
90-130 days. Large American Flag Leek Seeds. Allium ampeloprasum. Non-GMO. Open Pollinated. Large American Flag seeds produce leeks with large stems and leaves. This hardy crop can tolerate cold climates...
Gourds Seeds - Luffa Sponge
100+ days. 12 to 18 inches fruits are dried and seeded to make durable sponges. Approximately 320 seeds/oz. Luffa Gourd seeds yield green gourds that can be used for making...
Gourds Seeds - Birdhouse
110+ days. Fun, easy to grow plants yield gourds that can be made into attractive hanging birdhouses or dippers. Allow fruit to mature on vine as long as possible. Approximately...
Pumpkin Seeds - Cinderella (Organic)
This is the pumpkin to grow if you want a fairytale ending. Also called Rouge Vif D"Etampe, this is the pumpkin drawn in Disney's Cinderella. Non- GMO Organic Cinderella Pumpkin...
Pumpkin Seeds - Cinderella
95 to 150 days. Cinderella Pumpkin Seeds. Also known as Rouge vif D'Etampes. Kids love this antique french heirloom pumpkin. Flatter than regular pumpkins and darker of color, this is...
Artichoke Seeds - Imperial Star
150-160 days from sowing. Cynara scolymus. Imperial Star Artichoke Seeds. Non-GMO, perennial. This is suitable for garden plots, raised beds, and fields. UC-bred, nearly spineless plants for first-year harvests—uniform, high-yielding...
Pumpkin Seeds - Show Winner
Cucurbita maxima As the name implies, this is the pumpkin to grow if you want to win a novelty contest. The giant pumpkins develop in an array of colors, including...
Leek Seeds - Giant Musselburgh
80-130 days. Allium porrum. Giant Musselburgh Leek Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and market gardens. Giant Musselburgh is a classic Scottish...
Gourds Seeds - Dipper Long Handle
110+ days. For carving, burning, painting or just looking at. Blossom end about 4 inches across with neck from 8 to 12 inches long. Usually curved but can be grown...
Amaranth Seeds - All Red Leaf
100-130 Days to maturity. Amaranthus cruentus. All Red Leaf Amaranth Seeds. Non-GMO, warm weather open-pollinated annual. Also known as Red Ocean Amaranth, this bright red leafy vegetable has ample health...
Onion Seeds - Short - Texas Grano 502
110-165 Days to maturity. Allium cepa. Texas Grano 502 Onion Vegetable Seeds. Non-GMO, annual, openn-pollinated, heirloom, short-day onion seeds. A short-day onion that is suitable for planting in early fall...
Gourd Seeds - Caveman Club - Organic
Organic Caveman's Club Gourd Seeds. 130 days to maturity. Lagenaria siceraria. Heirloom, Non-GMO, Annual. Dark green 10-16 in. long 7-14 lb shiny fruit hard shell has knobby protrusions. Approx. 840...
Parsnip Seeds - Harris Model
100-120 days. Heirloom. Non-GMO. Pastinaca sativa. Harris is THE parsnip that people think of when they think of parsnips. This has been the standard for years and for good reason....
Competition Pumpkin Seeds - 400 lb plus
115+ Days to maturity. Non-GMO Competition Pumpkin 400 lb. Plus pumpkin seeds from True Leaf Market come from competition pumpkins that weighed 400 lbs. or more. Whether you want to...
Gourd Seeds - Bushel
Bushel gourds are giant round and a gray-brown shade. Gourds grow to be 3-5‚ in diameter and 25-100 lbs, but can be made lighter when allowed to dry on the...
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