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]()
Pumpkin Seeds - Casper
Cucurbita pepo (115 days) Don't be scared, this ghostly white pumpkin is named after the friendly ghost. Casper is sure to please at Halloween with 15 pound pumpkins perfect for...
Moonflower Seeds - Tall Night Flowering
112 Days to maturity. Ipomoea alba. Tall Night Flowering Moonflower Seeds. Non-GMO, annual. Tall Night Flowering moonflower seeds boast some of the most fragrant, spectacular, and rapid-growing blooms in the...
Snapdragon Seeds - Sonnet Series
115-121 Days to maturity. Antirrhinum majus. Sonnet Series Snapdragon Seeds. Non-GMO, Premium Quality Seeds, hybrid, annual. Sonnet Series snapdragon seeds grow a fragrant, classic, and authentic touch of the Mediterranean...
Sweet William Seeds - Double Mixture
105-112 days to maturity. Dianthus barbatus. Dianthus Double Mixture Seeds. Non-GMO, Annual, or Biennial. Ornamental. Double Mix Sweet William seeds promise elegant 3-5 inch blooms of crimsons, scarlets, and pinks...
Morning Glory Seeds - Heavenly Blue
112 days. Heavenly Blue morning glory seeds promise a fun, unique, and effortless grow for your home, garden, or patio. Heavenly Blue seeds burst into 60-120" tall morning glories dazzling...
Pumpkin Seeds - White Queen
90-120 days. Non-GMO. Open-pollinated. White Queen Pumpkin Seeds from True Leaf Market grow ghostly white pumpkins that reach 7" to 10" in diameter. Ornamental white pumpkins like White Queen can...
Petunia Seeds - Picobella Series (pelleted)
98-105 Days to maturity. Petunia x hybrida. Picobella Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Picobella seeds promise one of summer's most exclusive, vibrant, yet smallest petunias grown...
Leek Seeds - Carentan
Non-GMO, Open-Pollinated, Heirloom Carentan Leek Seeds from True Leaf Market. Carentan leeks are an excellent addition to dishes that need an extra oniony zest. Tender white stems grow 8.5 inches...
Petunia Seeds - Frost Series (Pelleted)
98-105 Days to maturity. Petunia x hybrida. Frost Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Frost Series seeds grow a delightful, unique, and lively variation of the world-famous...
Canna Seeds - Tropical Series
98-112 Days to maturity. Canna x generalis. Tropical Series Canna Seeds. Non-GMO, annual, hybrid flower. Tropical Series seeds promise exotic, early-blooming, and easy-to-grow canna plants for especially hot, humid gardens...
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...
Heliotrope Seeds - Marine
91-98 Days to maturity. Heliotropium arborescens. Heliotrope Marine Seeds. Non-GMO, Annual. Ornamental. Marine heliotrope seeds are fragrant and delicate, yet hardy grow where others would decline. It is easy to...
Pumpkin Seeds - Dickinson
C. moschata (115 days) Nearly round to elongated fruits, 18 inches long by 14 inch diameter. Up to 40 pounds. Slightly furrowed but smooth buff-colored rind. Pumpkin Seeds - Dickinson...
Tomatillo Seeds - Cape Gooseberry Large Fruit
90-120 days. Physalis peruviana. Cape Gooseberry Large Fruit Tomatillo Seeds. Non-GMO, warm-season annual, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and larger containers. This strain will...
Burdock Seeds - Chiko
Non-GMO, Heirloom Burdock Chiko Herb Garden Seed from True Leaf Market. Arctium lappa. Burdock biennial herbs originated from regions in Europe and Asia and is a diverse herbal remedy that's...
Sorghum Seeds - Multicolored Broomcorn
105-119 days to maturity. Sorghum bicolor. Multicolored Broomcorn Seeds. Non-GMO, annual, open-pollinated, ornamental grain. This crop is suitable for growing in fields, garden plots, and raised beds. Multicolored broomcorn (sometimes...
Melon Seeds - Piel de Sapo
90-110 Days to maturity. Cucumis melo. Piel de Sapo Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat tolerant, drought tolerant specialty Melon. Suitable for growing in garden plots and raised...
Gourd Seeds - Speckled Swan
105-125 days. Speckled Swan gourd is a very unique looking variety that is shaped very similarly to an actual swan. The gourds have a large round base that narrows to...
Dianthus Seeds - Floral Lace Series (Pelleted)
105-112 days to maturity. Dianthus chinensis x barbatus. Dianthus Floral Lace Series Mix Seeds. Non-GMO, Annual, or Biennial. Ornamental. Floral Lace Series dianthus seeds promise a unique, vibrant, and low-maintenance...
Petunia Seeds - Pirouette Rose (pelleted)
98-105 Days to maturity. Petunia x hybrida. Pirouette Rose Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Pirouette Rose Petunia seeds are brilliant, easy to grow, and renowned for their...
Pumpkin Seeds - Kentucky Field
Cucurbita moschata (113 days) Kentucky Field Pumpkin Seeds. Fruits can be variable in shape, normally deeper/longer than they are wide. Kentucky Field generally weights between 10-15 pounds. The skin is...
Dianthus Seeds - Super Parfait Series (Pelleted)
105-112 days to maturity. Dianthus chinensis. Dianthus Super Parfait Series Seeds. Non-GMO, Annual or Biennial. Ornamental. Super Parfait Series seeds promise a spectacular alternative to the traditional seasonal dianthus. Super...
Snapdragon Seeds - Madame Butterfly Mixture
115-121 Days to maturity. Antirrhinum majus. Madame Butterfly Mixture Snapdragon Seeds. Non-GMO, Premium Quality Seeds, hybrid, annual. Madame Butterfly Mix snapdragon seeds promise to turn any stale summer bedding into...
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...
Morning Glory Seeds - Mixed Colors
112 Days to maturity. Ipomoea purpurea. Mixed Colors Morning Glory Seeds. Non-GMO, annual. Morning glory seeds are an essential and decorative plant for your summertime garden, home, or patio. Annual...
Seed Potatoes - Spring - Russet (Organic)
This item is a pre-order item and is expected to ship in March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This product...
Melon Seeds - Casaba - Golden Beauty
110 Days to maturity. Cucumis melo. Golden Beauty Casaba Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, Casaba Melon. Suitable for growing in garden plots and raised beds. Golden Beauty...
Fennel Seeds - Bronze
Non-GMO, Heirloom Bronze Fennel Herb Garden Seed from True Leaf Market. Foeniculum vulgare purpureum. Bronze Fennel is a cool perennial that's been used as medicine dating back to Ancient Egypt....
Snapdragon Seeds - Maximum Mix
115-121 Days to maturity. Antirrhinum majus. Maximum Mix Snapdragon Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, annual. Maximum Mix seeds promise some of the tallest, brightest, and most vivid snapdragons growing...
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