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]()
Gourd Seeds - Haa Sing - Hybrid
80-90 days to maturity. Luffa acutangula ’Haa Sing’. Haa Sing Gourd Seeds. Non-GMO, warm-season, annual, hybrid. This unique gourd plant has ridged fruit growing to be 26-30" long and dark...
Stipa Seeds - Pony Tails
98-105 Days to maturity. Nassella tenuissima (syn. Stipa tenuissima). Pony Tails Grass Stipa Seeds. Non-GMO, Annual or Perennial. Open Pollinated. Ornamental. Pony Tails Stipa seeds grow one of the most...
Onion Seeds - Red Of Florence
90-120 Days to maturity. Allium cepa. Red of Florence Onion Seeds. Also known as Red Long of Florence and Long Red Florence. Non-GMO, Biannual (but can be treated as an...
Gourd Seeds - Harvest Wings F1
Harvest Wings F1 Hybrid Gourd Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 95 - 100 days to maturity. This trailing plant produces multi-colored fruits and shapes. Approx. 850 Seeds per...
Radish Seeds - Giant Luo Buo
Radish Seeds - Giant Luo Buo. Heirloom, Non-GMO. Raphanus sativus. 80-100 days. Cool season annual. This large oval white radish grows 8-10" long and 5-6" in diameter and is very...
Tomato Seeds - Slicing - Micado Violetter (Organic)
80-105 Days to maturity (from transplant). Solanum lycopersicum. Organic Micado Violetter Tomato Seeds. Non-GMO, warm season annual, organic, open-pollinated, heirloom, potato leaf, indeterminate, slicing tomato. Suitable for growing in garden...
Pumpkin Seeds - Baby Boo (treated)
95 Days to maturity. Cucurbita pepo. Treated Baby Boo Pumpkin Vegetable Seeds. Non-GMO, annual, treated, open-pollinated mini pumpkin squash seeds. These pumpkins are small and white. They will look perfect...
Watermelon Seeds - Tom Watson
Tom Watson Watermelon Seeds. 90 Days. Non-GMO, heirloom, open pollinated seeds. Citrullus lanatus. AKA: Ole Tom Watson. A very old heirloom variety originating from the state of Georgia, dating back...
Pumpkin Seeds - Early Harvest F1
Early Harvest F1 Hybrid Pumpkin Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 90 days to maturity. Early Harvest is popular with both home gardeners and commercial growers. About 200 Seeds...
Tomato Seeds - Slicing - Hillbilly
85-94 Days to maturity (from transplant). Solanum lycopersicum. Hillbilly Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Cumin Seeds - Black
90-100 Days to maturity. Nigella sativa. Black Cumin Seeds. Non-GMO, frost-tender annual. Also known as Black Caraway, Roman Coriander, Nutmeg Flower, Fennel Flower, Kalonji, or Nigella. It may be grown...
Tomato Seeds - Paste - Orange Roma
95-100 Days to maturity (from transplant). Solanum lycoperscium. Orange Roma Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, paste tomato. A yellow-fleshed version of Mountain Sweet which was popular in the...
Tomato Seeds - Slicing - Brandywine Red Potato Leaf
80-100 Days to maturity (from transplant). Solanum lycopersicum. Brandywine Red Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, potato leaf, indeterminate, slicing tomato. Suitable for growing in garden plots, raised...
Pumpkin Seeds - Autumn Gold Hybrid
Non-GMO Hybrid Autumn Gold Pumpkins are the perfect all-purpose pumpkin. These pumpkins are great for carving, cooking, and seeds. Autumn Gold is ready in 90 days. Each vine will produce...
Pumpkin Seeds - Lumina
90 Days to maturity. Cucurbita maxima. Lumina Pumpkin Vegetable Seeds. Non-GMO, annual, warm season, open-pollinated, heirloom, small pumpkin. Lumina Pumpkin is a charming variety known for its striking appearance and...
Tomato Seeds - Slicing - Chef's Choice White Hybrid
90 Days to maturity (from transplant). Solanum lycopersicum. Chef’s Choice White Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, indeterminate, slicing tomato. Suitable for growing in garden plots, raised...
Tulip Bulbs - Darwin Hybrid - Mixed
10 Bulb Bag This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Watermelon Seeds - Picnic - Greybelle
80-90 Days to maturity. Citrullus lanatus. Greybelle Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. 15-20 pound round fruits. Greybelle watermelon...
Tulip Bulbs - Double Early - Mixed
10 Bulb Bag This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Pepper Seeds - Hot - Habanero Blend
80-90 Days to maturity (from transplant). Capsicum chinense. Habanero Blend Hot Pepper Seeds. This blend of habanero pepper seeds includes 6 colors for an attractive harvest. Colors include red, orange,...
Melon Seeds - Cantaloupe - Iroquois (Organic)
75-90 Days to maturity. Cucumis melo. Iroquois Organic Cantaloupe Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Watermelon Seeds - Picnic - Garrisonian
80-90 Days to maturity. Citrullus lanatus. Garrisonian Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Garrisonian Watermelon Seeds from True Leaf Market produce large, oblong watermelon fruits...
Watermelon Seeds - Picnic - Striped Klondike R7
80-90 Days to maturity. Citrullus lanatus. Striped Klondike R7 Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Klondike R7 watermelon is...
Tomato Seeds - Slicing - Nebraska Wedding
75-115 Days to maturity (from transplant). Solanum lycoperscium. Nebraska Wedding Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses. The plant...
Gourd Seeds - Pear (Bi-Color)
Pear (Bi-color) gourds have a golden yellow top half with a dark green bottom half and horizontal white stripes on the whole fruit. Gourds are pear shaped, and grow to...
Tomato Seeds - Slicing - Zapotec Oaxacan Ribbed
80-90 Days to maturity (from transplant). Solanum lycopersicum. Zapotec Oaxacan Ribbed Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Cerastium Seeds - Snow In Summer - Biebersteinii White
60-90 Days to Maturity. Cerastium biebersteinii. Biebersteinii White Snow in Summer Flower Seeds. Non-GMO, open-pollinated. Perennial in zones 3-8. Deer resistant. Attracts pollinators. Displays white-colored blooms from late spring through...
Melon Seeds - Casaba - Sungold
85-110 Days to maturity. Cucumis melo. Sungold Casaba Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, drought-tolerant, Casaba Melon. Suitable for growing in garden plots, raised beds, and greenhouses. This...
Melon Seeds - Sakata's Sweet
85-90 Days to maturity. Cucumis melo. Sakata's Sweet Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Asian Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant to...
Gourd Seeds - Extra Long Snake
60-90 Days to maturity. Trichosanthes cucumerina var. anguina. Extra Long Snake Gourd Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom. The Extra Long Snake gourd not only adds a unique culinary ingredient...
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