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]()
Radish Seeds - Black Spanish Round
50-70 Days to maturity. Raphanus sativus. Black Spanish Round Radish Seeds. Non-GMO, annual, open-pollinated, heirloom. Also known as Noir Gros Rond D’hiver or Round Black Spanish Radish. Suitable for growing...
Melon Seeds - Cantaloupe - Ambrosia Hybrid
85 Days to maturity. Cucumis melo. Ambrosia Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant to...
Tomato Seeds - Slicing - Momotaro Hybrid
60 Days to maturity (from transplant). Solanum lycopersicum. Momotaro Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, heat tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots, raised...
Bean Seeds - Bush - Taylor Dwarf Horticulture
50-65 Days to maturity. Phaseolus vulgaris. Taylor Dwarf Horticulture Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, bush, shelling high-yielding bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Corn Seeds - Dent - Truckers Favorite White
70-85 Days to maturity. Zea mays. Truckers Favorite White Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Dent Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
African Marigold Seeds - Antigua Series
77-84 Days to maturity. Tagetes erecta. Antigua Series African Marigold Seeds. Non-GMO, annual, hybrid. Antigua Series African marigold seeds grow some of the most recognizable summertime blooms, both indoors and...
Squash Seeds - Summer - Scallop Yellow Bush
Cucurbita pepo (49 days) Scallop Yellow Bush is a bush type squash that produces nice yields of flat, round fruit. They remind me of flying saucers. Many times called Patty...
Zinnia Seeds - Swizzle Series
54-70 Days to maturity. Zinnia elegans. Swizzle Series Zinnia Seeds. Non-GMO, organic, F1 hybrid, annual. Swizzle Series Zinnia flower seeds in your garden will turn heads this summer. Swizzle Series...
Lettuce Seeds - Red Oakleaf - Organic
Lactuca sativa (38 days) A deep merlot colored leaf resembling an oak leaf with deep lobes. Excellent for baby leaf production. Unlike some other reds, oakleaf maintains a mild flavor...
Tomato Seeds - Slicing - Super Fantastic Hybrid
70 Days to maturity (from transplant). Solanum lycopersicum. Super Fantastic Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Mighty Mustard® Pacific Gold - Cover Crop Seeds
35-40 Days. Brassica juncea. Cover Crop. Non-GMO. Open-Pollinated. Mighty Mustard® Pacific Gold seeds are one of the most beneficial, diverse, and quickly maturing cover crops for the home garden. Mighty...
Pepper Seeds - Hot - Scotch Bonnet Red
90-100 Days to maturity (from transplant). Capsicum chinense. Scotch Bonnet Red Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, hot pepper with extra hot heat levels. 100,000 to 350,000 Scoville...
Lettuce Seeds - Butterhead - Way-A-Head
Way-A-Head butterhead lettuce is crisp and mild. Heads are compact and medium size. A great crop to grow in limited space for high yields. Leaves are medium green and smooth....
Beet Seed - White Detroit
55 Days. Beta vulgaris. Annual. Heirloom. Open-pollinated. Same classic flavor, non-GMO Detroit White beet seeds grow a clean, stainless alternative to traditional messy old-world garden beets. Widely known as 'sugar...
Beet Seeds - Gourmet Blend
50-60 days. Beta vulgaris. Gourmet Blend Beet Seeds. Non-GMO, annual, open-pollinated. This crop is suitable for garden plots, raised beds, and containers. A colorful five-variety mix—Bull's Blood, Detroit Dark Red,...
Cucumber Seeds - Burpless Bush Slicer F1
Non-GMO Burpless Bush F1 Hybrid Cucumber Seeds from True Leaf Market grow into compact bushy plants that are well-suited to container and small gardens. The burpless 10" x 1-1/2" fruit...
California Poppy Seeds
56-70 Days to maturity. Eschscholzia californica. California Poppy Seeds. Non-GMO, annual. California poppy seeds grow one of the most radiant, iconic, and all-American blooms ever! California poppy seeds promise a...
Tomato Seeds - Slicing - Bonny Best
70-75 Days to maturity (from transplant). Solanum lycopersicum. Bonny Best Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. This...
Corn Seeds - Dent - Truckers Favorite Yellow
70-85 Days to maturity. Zea mays. Truckers Favorite Yellow Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Dent Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Bean Seeds - Bush - Cherokee Black Wax
50-65 Days to maturity. Phaseolus vulgaris. Cherokee Black Wax Bush Bean Seeds. Non-GMO, annual, open-pollinated, bush, snap, wax bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Lettuce Seeds - Romaine - Petite Rouge
70 Days to maturity. Lactuca sativa. Petite Rouge Romaine Lettuce Seeds. Also known as Petite Rouge Cos lettuce. Non-GMO. Annual. Open Pollinated. Matures into a beautifully speckled bronze leaf used...
Cucumber Seeds - Beit Alpha F1 CMR/MMR
52 Days to maturity. Cucumis sativus. Beit Alpha Hybrid CMR/MMR Cucumber Seeds. Non-GMO, annual, F1 hybrid, parthenocarpic and gynoecious, dual-use slicing or pickling cucumber. Suitable for growing in fields, containers...
Pak Choi Seeds - Dwarf White Stem
40-45 Days to maturity. Brassica rapa Chinensis group. Dwarf White Stem, Pak Choi (Bok Choy) Seeds. Non-GMO Annual, Heirloom. This ‘Baby Bok Choy’, is the famous Asian green. It grows...
Cabbage Seeds - Early Jersey Wakefield
Brassica oleracea var. capitata (63 days) Early Jersey Wakefield cabbage forms a compact, somewhat conical head with glaucous-green leaves. Early Jersey Wakfield is a wonderful early heading variety, occupying little...
Eggplant Seeds - Thai Round
55-60 days maturity after transplant. Solanum melongena ’Thai Round’. Thai Round Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This disease-resistant Matti Gulla variety adapts well to many growing conditions. Matti is...
Basil Seeds - Dwarf Greek
Non-GMO, Open-pollinated, Heirloom Dwarf Greek Basil Herb Seed from True Leaf Market. Ocimum basilicum. As basil has many different varieties, Dwarf Greek Basil Herb is one of the smaller, ancient...
Canna Seeds - Tropical Series
98-112 Days to maturity. Canna x generalis. Tropical Series Canna Seeds. Non-GMO, annual, hybrid flower. Tropical Series seeds promise exotic, early-blooming, and easy-to-grow canna plants for especially hot, humid gardens...
African Marigold Seeds - Discovery Series
77-84 Days to maturity. Tagetes erecta. Discovery Series African Marigold Seeds. Non-GMO, annual, hybrid. Discovery Series African marigold seeds are an adorable, compact, and vibrant addition to grow in any...
Melon Seeds - Casaba - Golden Beauty
110 Days to maturity. Cucumis melo. Golden Beauty Casaba Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, Casaba Melon. Suitable for growing in garden plots and raised beds. Golden Beauty...
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