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]()
Watermelon Seeds - Mini - Golden Midget
60-70 Days to maturity. Citrullus lanatus. Golden Midget Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, mini watermelon. Bred by Elwyn Meader and Albert Yaeger at U of...
Pepper Seeds - Sweet - Orange King Bell
85 Days to maturity (from transplant). Capsicum annuum. Orange King Bell Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, drought tolerant, high-yielding, sweet pepper with no heat. 0 Scoville Heat Units. Suitable...
Corn Seeds - Dent - Hickory King White
115 Days to maturity. Zea mays. Hickory King White Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Dent Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Pepper Seeds - Sweet - Big Bertha Hybrid
73 Days to maturity (from transplant). Capsicum annuum. Big Bertha Hybrid Pepper Seeds. Non-GMO, annual, F1 hybrid, sweet pepper with no heat level. 0 Scoville Heat Units. Resistant to Tobamovirus...
Chard Seeds - Perpetual Spinach
Not spinach at all, but because it still keeps giving healthy green leaves during the heat when most spinach has gone to seed it does seem perpetual or never ending....
Cucumber Seeds - Marketmore 80
60-70 Days to maturity. Cucumis sativus. Marketmore 80 Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds, and...
Pumpkin Seeds - Casper
Cucurbita pepo (115 days) Don't be scared, this ghostly white pumpkin is named after the friendly ghost. Casper is sure to please at Halloween with 15 pound pumpkins perfect for...
Bean Seeds - Bush - Gold Rush Wax
50-65 Days to maturity. Phaseolus vulgaris.Wax Gold Rush Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, AAS winner, bush, snap, wax bean. Suitable for growing in containers, garden plots, raised beds,...
Tomato Seeds - Slicing - Brandywine Yellow (Organic)
76-90 Days to maturity (from transplant). Solanum lycopersicum. Organic Brandywine Yellow Tomato Seeds. Non-GMO, warm season annual, organic, open-pollinated, heirloom, potato leaf, indeterminate, slicing tomato. Suitable for growing in garden...
Tomato Seeds - Cherry - Large Red Cherry (Organic)
75-80 Days to maturity (from transplant). Solanum lycoperscium. Organic Large Red Cherry Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds,...
Eggplant Seeds - Millionaire Purple Hybrid
55 days. Japan long-type produces early, high quality fruit over 8 inches long with brilliant black skin and a purple calyx. The tender flesh is nearly seedless. This is a...
Moonflower Seeds - Tall Night Flowering
112 Days to maturity. Ipomoea alba. Tall Night Flowering Moonflower Seeds. Non-GMO, annual. Tall Night Flowering moonflower seeds boast some of the most fragrant, spectacular, and rapid-growing blooms in the...
Chinese Broccoli Seeds - Suiho - Hybrid
50 to 55 Days to maturity. Brassica oleracea var alboglabra. Chinese Broccoli Seeds - Suiho - Hybrid seeds. Annual, Hybrid. Also known as Noble Jade or Emerald Green variety. This...
Pepper Seeds - Sweet - Cubanelle
65 Days to maturity (from transplant). Capsicum annuum. Cubanelle Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, drought tolerant, sweet pepper with mild heat levels. 100 to 500 Scoville Heat Units. Suitable...
Tomato Seeds - Slicing - Ace 55 VF
85 Days to maturity (from transplant). Solanum lycoperscium. Ace 55 VF Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Basil Seeds - Thai Sweet Large Leaf
35-40 Days to maturity. Ocimum basilicum. Sweet Large Leaf Thai Basil Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. A...
Basil Seeds - Red Leaf Holy Basil
65-75 days maturity. Ocimum sanctum. Red Leaf Holy Basil Seeds. Non-GMO, Heirloom. Annual. Holy basil is an essential herb in the Thai kitchen due to its unique flavor. This Holy...
Whole Oats (Organic) - Cover Crop Seeds
60 Days. Avena sativa. Oat is a cool weather crop that can withstand light frost but will die back in the winter or at temperatures below 5 to 10°F. This...
Oats and Peas Cover Crop Seed Mix
50-70 Days to termination. Oat and Peas Cover Crop Mix Seeds. Non-GMO, annual, winter-killing, no-till, forage-friendly. Plant as a spring, summer, or fall cover crop to restore vital nutrients and...
Radish Seeds - Sparkler
Non-GMO, Heirloom Sparkler Radish Seeds. This fast cool season crop is a delight with its pretty red skin that changes to white at the tip. Matures in 25 to 30...
Melon Seeds - Charentais
90 Days to maturity. Cucumis melo var. inodorus. Charentais Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Snapdragon Seeds - Sonnet Series
115-121 Days to maturity. Antirrhinum majus. Sonnet Series Snapdragon Seeds. Non-GMO, Premium Quality Seeds, hybrid, annual. Sonnet Series snapdragon seeds grow a fragrant, classic, and authentic touch of the Mediterranean...
Collards Seeds - Champion
75-85 days. Brassica oleracea var. viridis. Champion Collards seeds grow huge, slightly crumpled, juicy leaves. These collards leaves are cabbage-like, with a dark blue-green color. Champion collards has a mild...
Wildflower Seeds - Dry Land Mix
Annual and perennial mix. Dry Land Mix wildflower seed grows some of the season's most classic, colorful, and fragrant collection of blooms. Dryland Mix wildflower seeds contain a unique mix...
Tomato Seeds - Slicing - Homestead
80 Days to maturity (from transplant). Solanum lycopersicum. Homestead Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, heat tolerant, humidity tolerant, drought tolerant, semi-determinate, slicing tomato. Suitable for growing in...
Watermelon Seeds - Picnic - Sangria Hybrid
87 Days to maturity. Citrullus lanatus. Sangria Hybrid Watermelon Seeds. Non-GMO, annual, hybrid, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Resistant to Anthracnose (1), Fusarium Wilt...
Tomato Seeds - Slicing - Vintage Wine
80 Days to maturity (from transplant). Solanum lycopersicum. Vintage Wine Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Tomato Seeds - Paste - Amish Paste (Organic)
75-90 Days to maturity (from transplant). Solanum lycopersicum. Amish Paste (Organic) Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate, paste tomato. Amish Paste tomato plants produce one of the largest...
Aster Seeds - Crego Giant Mixture
91-105 Days to maturity. Callistephus chinensis. Crego Giant Mixture Aster Seeds. Non-GMO, Ornamental, Annual. Open-pollinated flower seeds. Crego Giant Mix Aster flower seeds grow a playful, robust, and familiar looking...
Eggplant Seeds - Florida Market
Florida Market eggplants plants are hardy and resistant to most diseases. They produce 9.5 inch by 6.5 inch fruits that are tear drop shaped. Fruits are dark purple and glossy....
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