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]()
Zinnia Seeds - Profusion Series (Coated)
54-70 Days to maturity. Zinnia elegans x angustifolia. Profusion Series Zinnia Seeds. Non-GMO, organic, annual. Profusion Series Zinnia flower seeds promise to turn your tired summer bedding into an award-winning...
Pepper Seeds - Sweet - Marconi Red
73 Days to maturity (from transplant). Capsicum annuum. Marconi Red Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high yielding, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units. Suitable...
Rudbeckia Seeds - Black-Eyed Susan
84-98 days maturity. Rudbeckia hirta. Rudbeckia Black-Eyed Susan Seeds. Non-GMO, Perennial. Ornamental. Black-Eyed Susan seeds grow some of the season's most timeless and familiar blooms of varieties native to the...
Tomato Seeds - Slicing - Beefmaster Hybrid
80 Days to maturity (from transplant). Solanum lycopersicum. Beefmaster Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses. Resistant to...
Tomato Seeds - Slicing - Mortgage Lifter
85-90 Days to maturity (from transplant). Solanum lycopersicum. Mortgage Lifter Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Asclepias Seeds - Butterfly Milkweed
91-98 Days to maturity. Asclepias tuberosa. Butterfly Milkweed Seeds. Perennial, non-GMO, heirloom, open-pollinated. Butterfly Weed Asclepias seeds invite perennial color into your home, patio, or garden. Asclepias flowers are easy...
Mustard - Farmer's Favorite Cover Crop Mix
35-45 Days to maturity. Brassica juncea. Farmer's Favorite Mustard Cover Crop Mix Seeds. Non-GMO, Open Pollinated, Annual. This is a blend of several mustards that work well together to provide...
Hairy Vetch - Cover Crop Seeds
80-90 Days. Vicia villosa. Annual. Heirloom. 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 - Honeynut
Cucurbita moschata (100-110 days) Honey Nut Squash originates from Cornell University. We remember being in Cornell's fields just a few years ago as they were developing this squash. It is...
Radicchio Seeds - Palla Rosa
Heirloom and Non-GMO Palla Rosa Radicchio is ready in 80-85 days in the garden. Radicchio is growing in popularity, and is known for its red leaves with white veins. Palla...
Tomato Seeds - Slicing - Lemon Boy Hybrid
75-80 Days to maturity (from transplant). Solanum lycopersicum. Lemon Boy Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Pepper Seeds - Hot - Large Red Cherry Hot
Non-GMO Large Hot Cherry Pepper ready in 80 days. Hot Cherry Peppers are great for container gardens. These hot peppers are rated between 3,000- 5,000 on the Scoville scale. As...
Carrot Seeds - Chantenay Red Core
65-70 days. Red Core Chantenay carrot Seeds. Daucus carota subsp. sativus. Non-GMO. Heirloom. The Chantenay Red Core carrot seeds produce blunt roots that can grow up to six inches long....
Cabbage Seeds - All Seasons Cabbage
Brassica oleracea var. capitata (87days) (Also known as "The Vandergaw" and "Novelty") A good mid-season cabbage for those regions with a moderate to warm summer. All seasons cabbage is heat...
Pea Seeds - Snap - Sugar Daddy
70-80 Days to maturity. Pisum sativum. Sugar Daddy Snap Pea Seeds. Non-GMO, annual, open-pollinated. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery mildew...
Shiso Seeds (Perilla) - Green Ohba
60 to 70 days to maturity. Perilla frutescens var crispa. Shiso Herb Seeds (Perilla) - Green Ohba Shiso Seeds. Warm season annual. Shiso, also known as perilla or beefsteak leaf,...
Hard Red Spring Wheat - Organic - Cover Crop Seeds
90 Days. Triticum aestivum. Open-Pollinated. Cover Crop. Organic. Non-GMO Organic Hard Red Spring Wheat cover crop is one of the most tolerant, productive, and beneficial grows available to home gardeners....
Beet Seeds - Chioggia (Organic)
55 Days. Beta vulgaris. Organic. Open-pollinated. Pronounced "key-oh-jah" after the small Venetian villa town, non-GMO Chioggia beet seeds are a classic Italian garden heirloom grown and sold throughout the Mediterranean...
Pepper - Hot - Cayenne Thick
65-85 Days to maturity (from transplant). Capsicum annuum. Cayenne Thick Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, heat-tolerant, hot pepper with hot heat levels. 30,000-50,000 Scoville Heat Units. Suitable for growing...
Cucumber Seeds - Long Green Imp. Slicing
65 Days to maturity. Cucumis sativus. Long Green Improved Slicing Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots, raised...
Watermelon Seeds - Giant - Black Diamond
90 Days to maturity. Citrullus lanatus. Black Diamond Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, Giant watermelon. Developed in Arkansas in the 1950s. Called black diamond because of...
Swiss Chard Seeds - Fordhook Giant
60 days. The Swiss Chard Fordhook Giant is a variety that can grow to be over two feet tall. This plant produced broad, dark green leaves with bright white stems...
Tomato Seeds - Slicing - Beefsteak Determinate
70 Days to maturity (from transplant). Solanum lycoperscium. Beefsteak Determinate Tomato Seeds. Non-GMO, annual, open-pollinated, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. The plant...
Petunia Seeds - Wave Series (pelleted)
98-105 Days to maturity. Petunia x hybrida. Wave Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Growing Wave Series seeds this season promises to reinvigorate any stale flower bed,...
Broccoli Raab Seeds - Spring Rapini
Brassica rapa (36 days) Broccoli Raab is also known as broccoli Asparago in Italy where it is prized for being a culinary delight. Broccoli Raab Seeds - Spring Rapini Spring...
Melon Seeds - Crenshaw - Crenshaw
110 Days to maturity. Cucumis melo. Crenshaw Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Crenshaw Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses. The Crenshaw...
Zinnia Seeds - Magellan Series (Coated)
55-60 Days to maturity. Zinnia elegans. Magellan Series Zinnia Seeds. Non-GMO, organic, F1 hybrid, annual. Magellan Zinnia Series seeds produce tough, resilient zinnias, best suited for gardens prone to heat...
Pea Seeds - Shelling - Green Arrow
65-70 days. Green Arrow Pea Seeds. Pisum sativum. Non-GMO. Hails from England and has been a gourmet variety in the EU for years. It is a heavy yielding shelling pea...
Snapdragon Seeds - Rocket Series
115-121 Days to maturity. Antirrhinum majus. Rocket Series Snapdragon Seeds. Non-GMO, Premium Quality Seeds, hybrid, annual. Rocket Series snapdragon seeds promise vibrant, dense, and award-winning blooms ideal for the garden,...
Pansy Seeds - Delta Premium Series
91-98 Days to maturity. Viola × wittrockiana. Delta Premium Series Pansy Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Delta Premium Series pansy seeds are an easy-to-grow summertime classic to add...
Lettuce Seeds - Heatwave Mix
45-60 days. Non-GMO. Heirloom. Heatwave Lettuce Seed Mix. Lactuca. The Heatwave Lettuce Mix lettuces that thrive in the heat and remain productive. Our choice "slow-bolt" varieties feature Grand Rapids, Prizehead,...
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