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 - Fong Show - Hybrid
55-65 days maturity after transplanting. Benincasa hispida var. chieh-qua ’Fong Show’. Fong Show Gourd Seeds. Non-GMO, warm-season, annual, hybrid. This jointed gourd, hairy melon, or mokwa variety is an early...
Pak Choi Seeds - Summer Zest - Hybrid
40-45 Days to maturity. Brassica rapa Chinensis group. Summer Zest Pak Choi Seeds. Cool-Warm Season Annual Hybrid. Summer Zest is considered a medium to large size cabbage or medium maturing...
Radish Seeds - Korean - Alpine Gold - Hybrid
60 days to maturity. Raphanus sativus. Alpine Gold Korean Radish Seeds. Hybrid, cool season annual, open pollinated. Alpine Gold radishes are a clean, crisp variety with smooth and polished roots....
Pepper Seeds - Sweet - Manganji
80-90 Days to maturity (from transplant). Capsicum annuum. Manganji Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with mild heat levels. 0 to 100 Scoville Heat Units. Suitable for growing...
Yu Choy Sum Seeds - Kosaitai - Hon Tsai Tai
Yu Choy Sum Seeds - Kosaitai - Hon Tsai Tai. Heirloom, Non-GMO. Brassica rapa var purpurea. 50 days. Cool season annual. This flowering purple stem choy sum, also known as...
Red Lentils (Organic) - Bulk Grains & Foods
These Red Lentils are great for sprouting, soups, and food storage. Our Red Lentils come in resealable packaging and are tested for microbes. Available in various quantities and in resealable...
Eggplant Seeds - Petch Siam
40-50 days maturity after transplant. Solanum melongena ’Petch Siam’. Petch Siam Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This well-known and productive Matti Gulla variety is easy to grow. Matti is...
Bean Seeds - Pole - Purple Moon Hyacinth
90 Days to maturity. Lablab purpureus. Purple Moon Hyacinth Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, drought tolerant, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden...
Radish Seeds - Chinese - Green Meat Luobo
60 Days to maturity. Raphanus sativus. Green Meat Luobo Chinese Radish Heirloom Seeds. Cool Season Annual. Unlike other Chinese radishes, Green Luobos aren’t globe-shaped—instead, they grow as big as 10”...
Eggplant Seeds - Konasu
60 days maturity after transplant. Solanum melongena ’Konasu’. Konasu Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This tiny, bite-sized, rounded eggplant has shiny dark purple skin that looks almost onyx. The...
Mustard Seeds - Wasabi
45 days. This mustard has large green leaves with wavy edges and a fun wasabi-like bite. Easy to grow, this mustard is also cold hardy and vigorous. Don't be mistaken,...
Cucumber Seeds - Chinese Snake Curved
The Chinese Snake Curved cucumber is the curved variation of Chinese Snake cucumbers. It has strong vines that yield long curved cucumbers. Fruits are dark green and grow to be...
Eggplant Seeds - Shoya Long - Hybrid
60 days maturity after transplant. Solanum melongena ’Shoya Long’. Shoya Long Eggplant Seeds. Non-GMO, warm-season, annual, hybrid. An early maturing hybrid with high yields and an upright plant habit. The...
Tomato Seeds - Slicing - Grandeur Hybrid
70 Days to maturity (from transplant). Solanum lycopersicum. Grandeur Hybrid Japanese Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Tomato Seeds - Cherry - Pink Thai Egg
65-70 Days to maturity (from transplant). Solanum lycopersicum. Pink Thai Egg Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses, and...
Turnip Seeds - Shogoin
Brassica rapa (42 days) Shogoin turnip produces quality white, globe shaped turnips with fine grained flesh. It is grown for both its mild green tops and excellent roots. Approx. 9,500...
Onion Seeds, Bunching - Ishikura Improved
60 Days to maturity. Allium fistulosum Ishikura Improved Bunching Onion Seeds. Annual, Non-GMO, Heirloom. This is a traditional medium early Japanese type bunching onion. At maturity, the stalk has white...
Pepper Seeds - Hot - Thai Scorpion Hybrid
90 Days to maturity (from transplant). Capsicum annuum x C. chinensis. Thai Scorpion Hybrid Pepper Seeds. Non-GMO, annual, F1 hybrid, deer-resistant hot pepper with hot heat levels. 75,000 to 85,000...
Chinese Cabbage Seeds - Spring Crisp - Hybrid
63-65 Days to maturity. Brassica rapa var. Pekinensis ‘Spring Crisp’. Spring Crisp Chinese Cabbage Hybrid seeds. Annual. Hybrid. Spring Crisp is desirable for its resistance to bolting during warm weather....
Amaranth Seeds - White Leaf
White Leaf Amaranth Seeds. Open pollinated, Heirloom, Non-GMO. Amaranthus mangostanus. 30-40 days. Annual. Suitable for microgreesn. This variety of edible amaranth, also known as Chinese spinach. Its round, tender, light...
Carrot Seeds - Shin Kuroda 5"
Non-GMO, heirloom Shin Kuroda 5" Carrot Seeds from True Leaf Market are a variant of the Chantenay-type Shin Kuroda carrot developed in Japan. The roots grow to about 5" long...
Gourd Seeds, Bitter- Dark Jade - Hybrid
55 to 60 Days to maturity. Momordica charantia. Dark Jade Bitter Gourd Hybrid Seeds. Non-GMO Annual Hybrid. This warm season annual is a high yielding, India-type bitter gourd. Dark green,...
Vietnamese Culantro Seeds - Ngo Gai
80-90 Days to maturity. Eryngium foetidum. Vietnamese Culantro Seeds - Ngo Gai Seeds. Annual heirloom. This herb belongs to the Apiacea family is often compared to parsley in flavor but...
Bean Seeds - Pole - Shironata Mame Sword
80-90 Days to maturity. Canavalia gladiata. Shironata Mame Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Eggplant Seeds - Kamo
65 days maturity after transplant. Solanum melongena ’Kamo’. Kamo Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. Kamo is a highly prized traditional kyo yasai or Kyoto vegetable from the Kamo area...
Gourd Seeds - Martinhouse Bottle
Martinhouse Bottle Gourd Seeds. 90 - 110 days to maturity. Lagenaria siceraria. Heirloom, Annual. ~ 185 seeds/ounce Download Free Vegetable Growing Guide PDF Gourd Seeds - Martinhouse Bottle Download Free...
Eggplant Seeds - Purple Comet F1
Purple Comet F1 Hybrid Eggplant Seeds. Solanum melongena. F1 Hybrid. Non-GMO. Annual. 55 days to maturity. Strong upright plants produce big yields of long-fruited Asian type eggplant. ~ 6,500 Seeds...
Sesame Seeds - Tan Kingoma
85 days to maturity. Sesame indicum. Tan Kingoma Sesame Seeds. Warm season annual. Kingoma sesame seeds are a great balance between the mild flavor of white sesame seeds and the...
Watermelon Seeds - Icebox - Hime Kansen Hybrid
95 Days to maturity. Citrullus vulgaris. Hime Kansen Hybrid Japanese Watermelon Seeds. Non-GMO, annual, hybrid, heat tolerant, seeded, icebox watermelon. Suitable for growing in garden plots. This Japanese watermelon is...
Toraji Seeds - Balloon Flower
90-120 days to maturity Platycodon grandiflorus (Jacq.) A. DC. Balloon Flower Toraji Seeds. Non-GMO, Heirloom. Perennial in Zones 3-8. Roots can be harvested after 2-3 years. Balloon Flower can also...
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