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 - Picnic - Jubilee (Organic)
90-97 Days to maturity. Citrullus lanatus. Organic Jubilee Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Tolerant to Fusarium Wilt...
Radish Seeds - Purple Plum - Organic
Raphanus sativas. (30 days) Purple Plum Radish produces deep plum purple globe shaped radishes with tender, crisp, white flesh. Organic Purple Plum Radish Seeds A gourmet radish for sure and...
Eggplant Seeds - Turkish Orange (Organic)
70-90 Days to maturity. Solanum aethiopicum ’Turkish Orange’. Organic Turkish Orange Eggplant Seeds. Non-GMO, cool weather annual. Turkish Orange Eggplants are the next vegetable you need to try this season....
Broccoli Seeds - Purple Sprouting (Organic)
40 to 60 days. Annual. Non-GMO seeds. The Broccoli Raab, also known as Rapini, is more closely related to the turnip and mustard than actual broccoli. This annual crop can...
Cabbage Seeds - Red Express - Organic
(63 days) Organic Red Express Cabbage is the earliest developing red cabbage we carry. We have been very impressed with it in our 2010 cabbage trials. Cabbage Seeds - Red...
Cabbage Seeds - Glory of Enkhuizen
90-100 Days to maturity. Brassica oleracea. Glory of Enkhuizen Cabbage Seeds. Non-GMO, annual, open-pollinated, heirloom, heading cabbage. Suitable for growing in fields, large containers, garden plots, raised beds, and greenhouses....
Watermelon Seeds - Picnic - Peacock Improved
88 Days to maturity. Citrullus lanatus. Peacock Improved Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. AKA: Peacock Improved Shipper. A...
Shirley Poppy Seeds - Double Mixed
84-91 Days to maturity. Papaver rhoeas. Double Mixed Shirley Poppy Seeds. Non-GMO, organic, Annual. Double Mixed Shirley poppy seeds are a classic summertime treasure. Double Mixed seeds promise delicate and...
Watermelon Seeds - Picnic - Moon & Stars
95 Days to maturity. Citrullus lanatus. Moon & Stars Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. The history of the...
Cucumber Seeds - Parade
55-60 Days to maturity. Cucumis sativus. Parade Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds, and greenhouses...
Squash Seeds - Winter - Hopi Orange (Organic)
80-120 Days to maturity. Cucurbita maxima. Hopi Orange (Organic) Squash Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Eggplant Seeds - Choryoku - Hybrid
50-60 days maturity after transplant. Solanum melongena var. esculentum ’Choryoku’. Choryoku Eggplant Seeds. Non-GMO, warm-season, annual, hybrid. This long Japanese eggplant has a bright, shiny, spring-green skin and matures to...
Tomato Seeds - Slicing - Oaxacan Pink
69-80 Days to maturity (from transplant). Solanum lycopersicum. Oaxacan Pink Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Squash Seeds - Winter - Delica - Hybrid
Squash Seeds - Winter - Delica - Hybrid. Non-GMO. Cucurbita maxima. 95-105 days (45-50 days after flowering). Warm season annual. Adaptable to many growing and soil conditions, this plant consistently...
Radish Seeds - Korean - Shin Dong Ha - Hybrid
60 days to maturity. Raphanus sativus. Shin Dong Ha Korean Hybrid Radish Seeds. Hybrid, warm to mild season annual. Korean radishes are similar in flavor and texture to daikon, so...
Corn Seeds - Flour - Montana Morado Maize
90-110 Days to maturity. Zea mays. Montana Morado Maize Corn Seeds. Non-GMO, warm-weather annual, open-pollinated, certified organic flour corn. Suitable for growing in garden plots or raised beds. Montana Morado...
Corn Seeds - Sweet - Jubilee Hybrid (treated)
80-89 Days to maturity. Zea mays. Jubilee Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions....
Squash Seeds - Summer - Lebanese White Bush
Lebanese White Bush Summer Squash Seeds. 45 Days to maturity. Non-GMO, open pollinated, heirloom seeds. Cucurbita pepo. AKA: Lebanese Squash. Though not a high producer, Lebanese White Squash is delicious...
Onion Seeds - Utah Yellow Sweet Spanish (Organic)
110-115 Days to maturity. Allium cepa. Organic Utah Yellow Sweet Spanish Onion Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, cold tolerant, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots,...
Tomato Seeds - Cherry - Small Red Cherry
75 Days to maturity (from transplant). Solanum lycopersicum. Small Red Cherry Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds, and...
Radish Seeds - Confetti Mix - Organic
Raphanus sativas. (25 days) Confetti is a fast maturing, colorful blend of white, red and bi colored radishes with a remarkable crisp flavor. Organic Confetti Mix Radish Seeds Great for...
Lettuce Seeds - Leaf - Lollo Bionda
Lollo Bionda is an Italian leaf lettuce fantastic for growing in just about any climate. Heads can stand the heat, and also can survive cold weather. They can even be...
Cucumber Seeds - National Pickling (Organic)
50-70 Days to maturity. Cucumis sativus. Organic National Pickling Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised...
Pumpkin Seeds - Howden Biggie (treated)
Non-GMO Treated Howden Biggie is ready in 115 days. This heirloom and extra large version of Howden will give you a true pumpkin shape and color. Howden Biggie can get...
Eggplant Seeds - Purple Thai Round
50-55 days maturity after transplant. Solanum melongena. Purple Thai Round Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This vigorous, prolific variety can adapt to many different growing conditions. The round fruit...
Pumpkin Seeds - Super Moon F1 AAS
Super Moon F1 AAS Hybrid Pumpkin Seeds. Cucurbita maxima. F1 Hybrid. Non-GMO. Annual. 90 days to maturity from seed. 2016 AAS Regional Winner. The first white pumpkin to win an...
Tomato Seeds - Cherry - Rainbow Cherry Mix
80 Days to maturity (from transplant). Solanum lycopersicum. Rainbow Cherry Mix Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Mustard Seeds - Wasabina
40 to 45 Days to maturity. Brassica juncea. Wasabina Mustard Seeds. Non-GMO, cool-season annual heirloom. Wasabina is a classic Asian mustard variety that is easy to grow. It’s a cool-season...
Tomato Seeds - Slicing - New Yorker
66 Days to maturity (from transplant). Solanum lycoperscium. New Yorker Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in containers, garden plots, raised beds, greenhouses. Resistant...
Lettuce Seeds - Bistro Blend
Bistro Blend Lettuce Seeds. 45 - 60 days to maturity. Can be grown as micro greens. Lactuca sativa. Open Pollinated. Annual. Lettuce Bistro Blend is a component mixture of loose-leaf...
Pak Choi Seeds - Nabi Queen - Dwarf Hybrid
Cabbage Seeds - Pak Choi - Nabi Queen - Dwarf Hybrid. Non-GMO. Annual. Brassica rapa Chinenis group. 40 days. Cool-warm season. This hybrid baby bok choi is often referred to...
Watermelon Seeds - Picnic - Tendersweet Orange (Organic)
Organic Tendersweet Orange Watermelon Seeds. 90 days to maturity. Citrullus lanatus. Heirloom, Non-GMO, Annual. ~ 400 Seeds/ounce. Download Free Vegetable Growing Guide PDF Watermelon Seeds - Tendersweet Orange - Organic...
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