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 - Cherry - Tiny Tim
60 Days to maturity (from transplant). Solanum lycoperscium. Tiny Tim Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses, containers, and...
Pepper Seeds - Sweet - Pretty N Sweet Hybrid
100-109 Days to maturity (from transplant). Capsicum annuum. Pretty N Sweet Hybrid Pepper Seeds. Non-GMO, annual, F1 hybrid, AAS winner, heat tolerant, drought tolerant, sweet pepper with no heat levels....
Carnation Seeds - Lillipot Mix (Treated)
154-175 days to maturity. Dianthus caryophyllus. Carnation Lillipot Mix Seeds. Non-GMO, Annual, or Biennial. Ornamental. Treated seeds. Lillipot Mix carnation seeds promise a spectacular and fragrant alternative to the traditional...
Swiss Chard Seeds - Rhubarb
55 days. Rhubarb Swiss Chard leaves are a beautiful variety and excellent in the kitchen as well. Recommended by USU. This plant produces dark reddish-green, heavily crumpled leaves, beautiful crimson...
Tomato Seeds - Slicing - Dutchman
69-85 Days to maturity (from transplant). Solanum lycopersicum. Dutchman Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
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...
Wildflower Seeds - Dryland Pollinators
Dryland Pollinators Wildflower Seed Collection. 80,000 seeds. Non-GMO. Heirloom. Annuals and Perennials. Specialty blend featuring 20 of the most showy, drought resistant wildflowers native to the driest and most challenging...
Squash Seeds - Winter - Cushaw Green Striped
Cushaw Green Striped Squash Seeds. 95 to 105 Days. Winter Squash. Heirloom, Open Pollianted, Non-GMO. Cucurbita argyrosperma. AKA: Green Striped Cushaw Pumpkin, Sweet Potato Pumpkin, Improved Cushaw, Striped Crookneck. A...
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...
Coleus Seeds - Black Dragon
84-91 Days to maturity. Plectranthus scutellarioides. Coleus Black Dragon Seeds. Non-GMO, Annual. Black Dragon coleus seeds are a tidy and exotic grow ideal for many hot and humid gardens across...
Salvia Seeds - Sizzler Series
63-66 Days to maturity. Salvia splendens. Salvia Sizzler Series Seeds. Non-GMO, perennial or annual. Ornamental. Sizzler Series seeds promise exotic, early-blooming, and easy-to-grow salvia plants for especially hot, humid gardens...
Pepper Seeds - Sweet - Golden Cal Wonder (Organic)
72 Days to maturity (from transplant). Capsicum annuum. Organic Golden Cal Wonder Pepper Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, high-yielding, drought tolerant, sweet-type, with no heat levels. 0 Scoville Heat...
Mustard Seeds - Nemagon
Nemagon is a natural bio-fumigant for root-knot nematode. What is bio-fumigation? Well, there are a lot of big words and some fancy jargon, but it condenses down to this: Bio-fumigants...
Fennel Seeds - Sweet
90-115 days. Foeniculum vulgare var. azuricum. Sweet Fennel Seeds. Non-GMO, annual, heirloom, open-pollinated. This early strain is suitable for garden plots, raised beds, and containers. Sweet Fennel is a cool-bulbing...
Pepper Seeds - Hot - Thai - Prik Mun
Pepper Seeds - Hot - Thai - Prik Mun. Heirloom, Non-GMO. Capsicum annuum. AKA chilli api, Dragon Pepper, la chiao, la jiao, lombok kecil, miris, murich, ot, siling labuyo, togarashi....
Cardoon Seeds
60-75 days. Cynara cardunculus. Cardoon Seeds. Non-GMO, perennial, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and ornamental borders. Cardoon is a tall, architectural relative of the...
Tomato Seeds - Cherry - Currant Yellow
70 Days to maturity (from transplant). Solanum lycoperscium. Currant Yellow Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Currant...
Lettuce Seeds - Tango
Lactuca sativa (33 days) Tango is a curled baby leaf variety that has a crisp, clean texture and holds up well with numerous salad dressings. Uniform attractive plants form tight...
Watermelon Seeds - Picnic - Kleckley's Sweet
85 Days to maturity. Citrullus lanatus. Kleckley’s Sweet Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Kleckley's Sweet was also called...
Pampas Grass Seeds
2nd year maturity. Cortaderia selloana. Pampas Grass Seeds. Non-GMO, Perennial. Open Pollinated. Ornamental. Pampas grass is one of the most popular non-flower ornamental plants in the entire world. Seeds mature...
Watermelon Seeds - Icebox - Yellow Petite
65-78 Days to maturity. Citrullus lanatus Yellow Petite watermelon seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, mini watermelon. Petite Yellow watermelon is perfect for those with a short growing...
Squash Seeds - Winter - Queensland Blue
95 days. Non-GMO. Heirloom. Queensland Blue Winter Squash Seeds from True Leaf Market to enjoy the sweet flavor of squash in soups, pies, and more. This heirloom winter squash from...
Mustard Seeds - Summer Fest Komatsuna Hybrid
21 days in summer or 50-60 days in winter to maturity. Brassica rapa var. perviridis. Summer Fest Komatsuna Mustard Seeds. Non-GMO, warm or cold-season, annual, hybrid. This popular traditional Japanese...
Tobacco Seeds - Piloto Cubano
~65 Days from transplant to maturity. Nicotiana tabacum. Piloto Cubano Tobacco Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Celosia Seeds - Crested - Armor Mix
85-95 Days to maturity. Celosia plumosa. Prestige Scarlet Crested Celosia Flower Seeds. Non-GMO, Annual. These striking and vigorous bedding plants are ideal for hot summer gardens. They display showy cockscomb...
Pepper Seeds - Hot - Jamaican Yellow Habanero
80-89 Days to maturity (from transplant). Capsicum chinense. Jamaican Yellow Pepper Seeds. Non-GMO, annual, open-pollinated, high yielding, deer resistant, heat tolerant, drought tolerant, hot pepper with extra hot heat levels....
Lettuce Seeds - Crisphead - Hanson Improved
75-85 days. These non-GMO Hanson Improved lettuce seeds grow into large green leaves and a white heart. Hanson Improved Lettuce is ready to harvest in 80 days. The Hanson Improved...
Bean Seeds - Pole - Purple Mart Tsu In Yard...
75-80 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Purple Mart Tsu In Yard Long Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat-tolerant, pole, snap, Asian, specialty bean. Suitable for growing in...
Swiss Chard Seeds - Yellow
55 days. The Yellow Swiss Chard is a variety that produces dark green leaves on bright Yellow stems. These stems are excellent as an ornamental piece in the garden, but...
Pepper Seeds - Sweet - Rainbow Bell Blend
60-69 Days to maturity (from transplant). Capsicum annuum. Rainbow Bell Blend Pepper Seeds. Non-GMO, annual, high yielding, drought tolerant, sweet pepper with no heat levels. 0 Scoville Heat Units. Suitable...
Rudbeckia Seeds - Cherry Brandy
91-105 days maturity. Rudbeckia hirta. Rudbeckia Cherry Brandy Seeds. Non-GMO, Perennial. Ornamental. Cherry Brandy seeds grow one of the summer's most vibrant and exclusive rudbeckias, compact and tidy 18-24 inch...
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