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]()
Tomato Seeds - Slicing - Aunt Ruby's German Green
80 Days to maturity (from transplant). Solanum lycopersicum. Aunt Ruby’s German Green Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Squash Seeds - Winter - Bush Delicata (Organic)
80 to 100 days to maturity. Cucurbita pepo. Organic Bush Delicata Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated, AAS 2002. This is suitable for growing in fields, garden plots, raised...
Cucumber Seeds - Arkansas Little Leaf
55 Days to maturity. Cucumis sativus. Arkansas Little Leaf Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, parthenocarpic, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds,...
Basil Seeds - Sweet Dani
Non-GMO, Sweet Dani Basil Herb Seed from True Leaf Market. Ocimum basilicum. As basil has many different varieties, Sweet Dani Basil Herb is a popular sweet hybrid type that started...
Cucumber Seeds - West Indian Gherkin
55-65 Days to maturity. Cucumis anguria. West Indian Gherkin Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds,...
Lettuce Seeds - Crisphead - Salinas
70-80 days. These non-GMO Salinas lettuce seeds easily grow into green leaves and are great for beginners. Salinas Lettuce, also known as Iceberg Lettuce, is ready to harvest in 70...
Cabbage Seeds - Purple Savoy
Brassica oleracea (61 days) Can be sown spring or fall but fall sowing usually works better. Very cold tolerant. An early savoy cabbage with green heads and purple to deep...
Lettuce Seeds - Purple Sword Celtuce
75-85 day maturity. Lactuca sativa var. asparagina ‘Purple Sword Celtuce’. Purple Sword Celtuce Lettuce Seeds. Non-GMO, cool-season annual heirloom. This variety of Chinese stem lettuce has good tolerance to cold...
Mustard Seeds - Crimson Tide
45 Days to maturity. Brassica juncea. Crimson Tide Mustard Seeds. Heirloom, Non-GMO, Open Pollinated. Annual. This mustard strongly resembles Ruby Streak. Its ornately fringed purple and green leaves deliver a...
Columbine Seeds - Origami Mix
2nd-year maturity. Aquilegia caerulea. Columbine Origami Mix Seeds. Non-GMO, Perennial. Ornamental. Origami Mix columbine seeds grow a playful, robust, and familiar classic American perennial that fits right at home among...
Tomato Seeds - Cherry - Chadwick Cherry
70 to 90 Days to maturity (from transplant). Solanum lycoperscium. Tomato - Chadwick Cherry Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised...
Lettuce Seeds - Butterhead - Capitaine
62 days. Lactuca sativa. Capitaine Butterhead Lettuce Seeds. Non-GMO, annual, heirloom, open-pollinated. Capitaine is an impressively large, tight butterhead lettuce with light-green 8-10-inch heads of curly leaves, with a delicate,...
Melon Seeds - Collective Farm Woman
83 Days to maturity. Cucumis melo. Collective Farm Woman Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Komatsuna Mustard Seeds - Green Boy - Hybrid
30 to 40 Days to maturity (warm climates), 50-60 Days to maturity (cold climates). Brassica rapa var. perviridis. Green Boy Komatsuna Mustard Seeds. Cool-season annual hybrid. Komatsuna is an easy-to-grow,...
Squash Seeds - Summer - Amberpic Hybrid
42 days to maturity. Cucurbita pepo. Amberpic Hybrid Summer Squash Seeds. Non-GMO, annual, hybrid. This is suitable for fields, containers, garden plots, raised beds, and greenhouses. Early straightneck that sets...
Tomato Seeds - Slicing - Early Doll Hybrid
59 Days to maturity (from transplant). Solanum lycoperscium. Early Doll Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Tomato Seeds - Salad - Tigerella
55-75 Days to maturity (from transplant). Solanum lycopersicum. Tigerella Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, salad tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Pumpkin Seeds - Thumpkin
120 days. A new pumpkin variety characterized by it's flattened or "Long Island Cheese" like shape, but with a dark orange color and an extra thick "handle" or stem. It...
Corn Seeds - Golden Bantam 8
75-85 Days to maturity. Zea mays. Golden Bantam 8 Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Sweet Corn. Golden Bantam 8, a classic heirloom variety, is a testament to its rich...
Beet Seeds - Ruby Queen (Organic)
50-55 Days to maturity. Beta vulgaris. Organic Ruby Queen Beet Seeds. Non-GMO, cool weather annual, organic, heirloom, open-pollinated, AAS winner 1957. This delicious multi-use beet can be used for the...
Nicotiana Seeds - Starmaker Series (Pelleted)
63-70 days to maturity. Nicotiana alata. Nicotiana Starmaker Series Seeds. Non-GMO, Annual. Ornamental. Starmaker Series nicotiana seeds grow a classic, durable, and curious touch of the South American tropics in...
Watermelon Seeds - Picnic - Mountain Sweet
85-100 Days to maturity. Citrullus lanatus. Mountain Sweet Yellow Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. 2004 Seed Saver Inventory...
Melon Seeds - Cantaloupe - Edisto 47
85 Days to maturity. Cucumis melo. Edisto 47 Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, humidity-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
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....
Oenothera Seeds - Showy Evening Primrose
91-98 days to Maturity. Showy Evening Primrose oenothera seeds grow one of summer's most familiar, gentle, yet vigorous blooms. Showy Evening Primrose is easy to grow from seed and is...
Beet Seeds - Detroit Mix - Organic
60 days. Heirloom, Non-GMO. Certified Organic. This mix of Detroit Red and Golden Beet seeds will make for a colorful and tasty harvest with all the warm shades of summer....
Pumpkin Seeds - Fall Rainbow Blend - Organic
Organic Fall Rainbow Blend Pumpkin Seeds. 60 to 105 days to maturity. Cucurbita maxima. Open Pollinated, Non-GMO, Annual. ~ 225 Seeds/ounce. Download Free Vegetable Growing Guide PDF Pumpkin Seeds -...
Squash Seeds - Winter - Sunshine Hybrid
Hybrid Sunshine Winter Squash is a kabocha squash that out-shines other varieties in side-by-side trials across North America. Sunshine is ready in 95 to 100 days. Hybrid Sunshine Squash has...
Tomato Seeds - Cherry - Isis Candy (Organic)
67 Days to maturity (from transplant). Solanum lycoperscium. Organic Isis Candy Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, organic, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses,...
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