Warm Winter / Frost-Free Areas
Zones: 9b–12
March can be peak garden season in these warm-winter zones. It is also a "pivot" month for gardening in much of the warmer parts of these zones. The risk of frost is over. Cool-season crops are in and doing well. March & April are the times to start transitioning from cool-season greens to heat-loving summer crops.
Indoors (fresh harvests):
- Microgreens: peas, broccoli, sunflowers, arugula.
- Sprouts: alfalfa, broccoli, radish, mung
- Herbs & greens under lights: chives, parsley, mint
Transplants to move outdoors (weather permitting - harden first): pepper, tomato, eggplant, melons, basil
Crops that can be directly sown outdoors in March: cucumber, squash, beans, corn, melons, okra, plus replanting for many greens and root crops
Cover crops: buckwheat, cow peas, sorghum
Tip: A SoCal zone 10 can be different from a Florida zone 10. Consider checking with your state Extension Service office for more specific recommendations and guidelines.
Use your USDA zone as a guide. Microclimates matter—coastal/urban spots run warmer; high elevation runs colder.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Pumpkin Seeds - Lumina (treated)
Non-GMO Lumina treated pumpkin seeds are ready in 90 days. This white pumpkins is medium-sized, and is about 10 to 15 pounds at full growth. Lumina pumpkies are white with...
Eggplant Seeds - Gretel Hybrid
50 days. AAS Winner for 2005. New miniature eggplants are white with violet/purple stripes. The fruit are non-bitter, with a tender skin and few seeds. The elongated, oval eggplants can...
Pumpkin Seeds - Jack Be Little - Organic
Organic Jack Be Little Pumpkin Seeds. 85 - 110 days to maturity. Cucurbita pepo. Heirloom, Non-GMO, Annual. Delightful miniature pumpkin with small vigorous vines. ~ 225 Seeds/ounce. Download Free Vegetable...
Cucumber Seeds - Addis
55-65 Days to maturity. Cucumis sativus. Addis Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds, and greenhouses...
Hollyhock Seeds - Queeny Purple
2nd-year maturity. Alcea rosea. Hollyhock Queeny Purple Seeds. Non-GMO, Perennial/Biennial. Queeny Purple seeds are an exciting and award-winning twist to the traditional summertime hollyhock that promises to excite your porch,...
Tomato Seeds - Slicing - Gold Medal
90 Days to maturity (from transplant). Solanum lycopersicum. Gold Medal Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Watermelon Seeds - Icebox - Early Crimson Treat
70 Days to maturity. Citrullus lanatus. Early Crimson Treat Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, icebox watermelon. Early Crimson Treat Watermelon Seeds. Both light and dark green...
Squash Seeds - Winter - Sweet Keeper
110 Days to maturity. Cucurbita maxima. Sweet Keeper Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to common...
Tomato Seeds - Slicing - Ace 55 VF (Organic)
85 Days to maturity (from transplant). Solanum lycoperscium. Organic Ace 55 VF Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Bean Seeds - Bush - Tohya Soybean
85 Days to maturity. Glycine max. Tohya Edamame Soybean Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, bush, shell, soybean, Asian bean. Suitable for growing in containers, garden plots, raised beds,...
Chinese Cabbage Seeds - Osaka Shirona
40-60 Days to maturity. Brassica rapa var. Pekinensis 'Osaka Shirona'. Osaka Shirona Chinese Cabbage Seeds. Annual. The shirona Cabbage group may be a cross between Chinese cabbage and pak choi,...
Cucumber Seeds - Garden Sweet Burpless Hybrid (Organic)
55 Days to maturity. Cucumis sativus. Organic Garden Sweet Burpless Hybrid Cucumber Seeds. Non-GMO, annual, organic, F1 hybrid, monoecious, burpless, slicing cucumber. Suitable for growing in fields, containers (with support),...
Melon Seeds - Cantaloupe - Rocky Ford Green Flesh
89 Days to maturity. Cucumis melo. Rocky Ford Green Flesh Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in containers, garden plots, raised beds,...
Chinese Broccoli Seeds - Wan Shen
60-65 days to maturity.Brassica oleracea var alboglabra. Wan Shen Chinese Broccoli Seeds. Non-GMO, warm or cool-season annual, heirloom. Wan Shen is one of the most popular green vegetables in Chinese...
Tomato Seeds - Slicing - Big Rainbow (Organic)
85-90 Days to maturity (from transplant). Solanum lycopersicum. Organic Big Rainbow Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Lettuce Seeds - Romaine - Parris White Cos
Parris White Cos Romaine Lettuce Seeds. 50 - 80 days to maturity. Lactuca sativa. Heirloom, Annual. Approximately 25,000 seeds/ounce. Lettuce Seeds - Romaine - Parris White Cos Large cylindrical upright...
Squash Seeds - Winter - Thelma Sanders
90 days to maturity. Cucurbita pepo. Thelma Sanders Acorn Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. Beloved Missouri heirloom acorn...
Tomato Seeds - Slicing - Calypso
75 Days to maturity (from transplant). Solanum lycopersicum. Calypso Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, heat and humidity tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots,...
Melon Seeds - Cantaloupe - Sierra Gold (Organic)
90 Days to maturity. Cucumis melo. Organic Sierra Gold Cantaloupe Melon Seeds. A non-GMO, annual, organic, open-pollinated, heat-tolerant cantaloupe. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Chinese Cabbage Seeds - Yukina Savoy
25-45 days to maturity.Brassica rapa var. pekinensis. Yukina Savoy Chinese Cabbage Seeds. Non-GMO, cool-season annual, heirloom. Yukina Savoy looks like a larger and savoyed version of Tatsoi. Considered one of...
Beet Seeds - Boltardy
The Boltardy beet is rich in both taste and color. Unlike many beets, the Boltardy can be sown early as it doesn’t bolt. Seeds should be planted ½” below the...
Tomato Seeds - Paste - Golden Roma
75 to 90 Days to maturity (from transplant). Solanum lycoperscium. Golden Roma Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, yellow paste tomato. Suitable for growing in garden plots, raised beds,...
Alyssum Seeds - Snow Crystals (Pelleted)
63-77 Days to maturity. Lobularia maritima. Snow Crystals Alyssum. Non-GMO, Open-Pollinated, Annual. Snow Crystals flower seeds easily grow eye-catching and fragrant Alyssum mounds bursting in vivid shades of alpine white....
Melon Seeds - Charantais - Hakucho Hybrid
65 Days to maturity. Cucumis melo var. cantalupensis. Charantais Hakucho Melon Seeds. A non-GMO, annual, hybrid, heat-tolerant Asian Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Also...
Pumpkin Seeds - Casper - Organic
Cucurbita pepo.. (115 days) Don't be scared, this ghostly white pumpkin is named after the friendly ghost. Organic Casper Pumpkin Seeds Casper is sure to please at Halloween with 15...
Tomato Seeds - Slicing - Giant Belgium Yellow
82-95 Days to maturity (from transplant). Solanum lycopersicum. Giant Belgium Yellow Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Watermelon Seeds - Icebox - Triple Express Hybrid
Triple Express F1 Hybrid Watermelon Seeds. Citrullus lanatus. F1 Hybrid. Non-GMO. Annual. 80 days to maturity. Seedless. Triple Express F1 is an early Crimson Sweet triploid, with a firm flesh...
Mustard Seeds - Tokyo Bekana - Organic
Organic Tokyo Bekana Mustard Seeds. 45 days to maturity. Brassica juncea. Open Pollinated, Non-GMO, Annual. It has bright light green leaves that are curly and ruffled. ~ 15,000 Seeds/ounce. Download...
Tomato Seeds - Slicing - Green Zebra Giant
85 Days to maturity (from transplant). Solanum lycopersicum. Green Zebra Giant Tomato Seeds. Non-GMO, warm season annual, open-pollinated, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
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