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]()
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...
Hairy Vetch - Organic - Cover Crop Seeds
80-90 Days. Vicia villosa. Organic. Annual. Non-GMO. Such a vigorous annual cover crop that it is considered invasive in much of the United States, non-GMO hairy vetch is a European...
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...
Kale Seeds - Dazzling Blue
Dazzling Blue Kale Seeds. 50 - 60 days to maturity. Brassica oleracea. Open Pollinated, Annual. Make any salad gorgeous with the unique coloring of Kale Dazzling Blue. Approximately 8,000 seeds/ounce...
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...
Chervil Seeds - Curled
Non-GMO, Heirloom Curled Chervil Garden Seed from True Leaf Market. Anthriscus cerefolium. These hardy annual herbs produce as a cool season crop and originate from Southeast Europe and West Asia....
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,...
Basil Seeds - Thai (Organic)
60-90 Days to maturity. Ocimum basilicum thyrsiflora. Organic Thai Basil Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. On the...
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...
Amaranth Seeds - Red Leaf - Hu Hsien
45-70 days to maturityAmaranthus tricolor ‘Hu Hsien’. Red Leaf Amaranth Seeds. Non-GMO, Heirloom. Annual. Amaranth is originally from the tropics of multiple continents; today, it is grown globally. The plant...
Gourd Seeds, Bitter - Green Skin
70 days to Maturity (after transplanting). Momordica charantia ’Green Skin’. Green Skin Bitter Gourd Seeds. Non-GMO, warm-season, annual, hybrid. This is an excellent, open-pollinated, Chinese bitter gourd that produces fruit...
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....
Onion Seeds - Intermediate - Shonan Red
160 Days to maturity. Allium cepa. Shonan Red Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, cold tolerant, bulbing, intermediate-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. The...
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...
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...
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,...
Bean Seeds - Pole - Kentucky Wonder
65 Days to maturity. Phaseolus vulgaris. Kentucky Wonder Pole Bean Seeds. Seeds may be brown or white in color. Non-GMO, annual, open-pollinated, heirloom, drought-tolerant, high-yielding, pole, snap bean. Suitable for...
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...
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...
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...
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...
Gourd Seeds, Bitter - Joy Green - Hybrid
55-65 Days to Maturity (after transplanting). Momordica charantia ’Joy Green’. Joy Green Bitter Gourd Seeds. Non-GMO, warm-season, annual, hybrid. These shiny green fruits grow 10-12 inches long. Joy Green is...
Bean Seeds - Pole - King of the Garden Lima
65-85 Days to maturity. Phaseolus vulgaris. King of the Garden Pole Lima Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat-tolerant, drought-tolerant, pole, shell, lima bean. Suitable for growing in containers, garden...
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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