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]()
Tomato Seeds - Slicing - Creole
72 Days to maturity (from transplant). Solanum lycopersicum. Creole Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, heat tolerant, drought tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots,...
Squash Seeds - Winter - Hubbard Blue - Organic
Organic Hubbard Blue Winter Squash Seeds. 100 - 120 days to maturity. Cucurbita maxima. Heirloom, Non-GMO, Annual. Fruits are slightly ridged and Blue-gray-green with a hard coarsely-warted shell. Hubbard Blue...
Lettuce Seeds - Merveille Des Quatre Saisons
Phaseolus lunatus (60 days) An original French lettuce variety of the "4 Seasons" strain. Aka Marvel of the Four Seasons. Lettuce Seeds - Merveille Des Quatre Saisons Has deep, rich...
Nasturtium Seeds - Jewel Mix (Organic)
55-65 Days to Maturity. Tropaeolum majus. Organic Jewel Mix Nasturtium Flower Seeds. Non-GMO, organic, open-pollinated, heirloom flower. Annual in zones 2, 3, 4, 5, 6, 7, 8, 9, 10, 11....
Squash Seeds - Summer - Golden Zucchini (Organic)
50 days to maturity. Cucurbita pepo. Organic Golden Zucchini Summer Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, raised beds, and containers. Eye-catching golden fruits...
Eggplant Seeds - Purple Comet F1
Purple Comet F1 Hybrid Eggplant Seeds. Solanum melongena. F1 Hybrid. Non-GMO. Annual. 55 days to maturity. Strong upright plants produce big yields of long-fruited Asian type eggplant. ~ 6,500 Seeds...
Cabbage Seeds - Drumhead
85-100 Days to maturity. Brassica oleracea var. capitata. Drumhead Cabbage Seeds. Non-GMO open-pollinated biennial. This classic, 10-12 lb flattened-head type with dense, blue-green leaves has a crisp texture, a mild,...
Pak Choi Seeds - Little Shanghai - Hybrid
Cabbage Seeds - Pak Choi - Little Shanghai - Hybrid. Non-GMO. Annual. Brassica rapa Chinensis group. 30-40 days. Cool-warm season. Excellent Shanghai baby pak choi with good uniformity. Plants grow...
Squash Seeds - Winter - Amish Pie
80-120 Days to maturity. Cucurbita maxima. Amish Pie Winter Squash Seeds. Non-GMO, annual, organic, open-pollinated heirloom. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses....
Tomato Seeds - Slicing - Ponderosa Red
80 Days to maturity (from transplant). Solanum lycopersicum. Ponderosa Red Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses....
Tomato Seeds - Cherry - Brown Berry
70 Days to maturity (from transplant). Solanum lycoperscium. Tomato - Brown Berry Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses....
Pak Choi Seeds - QD-2 Express - Hybrid
50 days to Maturity, 30-35 days as baby Pak Choy. Brassica pekinensis. QD-2 Express Pak Choi Seeds. Annual, Hybrid. Open Pollinated. This tender and sweet variety of pak choi can...
Mixed Greens Seeds - Braising Mix
45-60 Days to maturity. 25-30 Days to baby leaf harvest. Mixed Greens Braising Mix Vegetable Seeds. Non-GMO, annual, open-pollinated, mixed greens. The Mixed Greens Braising Mix is a blend of...
Dundale Pea - Organic - Cover Crop Seeds
60-70 Days. Pisum sativum subsp. arvense. Non-GMO. Heirloom. Organic. Open-Pollinated. Often known as "field pea" or simply "Dun pea", the non-GMO Organic Dundale pea is a popular cool-weather cover crop,...
Watermelon Seeds - Picnic - Crimson Sweet Yellow (Organic)
80 Days to maturity. Citrullus lanatus. Crimson Sweet Yellow Organic Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Organic Crimson Sweet Yellow watermelon is very similar...
Lettuce Seeds - Red Salad Bowl - Organic
Lactuca sativa (33 days) Introduced in the early 1950s. Red salad bowl is deeply lobed, burgundy red, and delicious. The cooler the weather, the more intese the burgundy color becomes....
Heliopsis Seeds - Summer Sun
84-91 Days to maturity. Heliopsis scabra. Heliopsis Summer Sun Seeds. Non-GMO, Perennial. Heliopsis Summer Sun stands out as an easy-care perennial, brightening gardens with abundant, semi-double golden blooms from midsummer...
Pak Choi Seeds - Red Choi - Hybrid
45 Days to full maturity. 20-30 Days for baby leaf. 10-15 Days for microgreens. Brassica rapa Chinensis group. Red Choi Pak Choi Seeds. Annual, Hybrid. Cool Season. This special hybrid...
Pumpkin Seeds - Spookie
Non-GMO, heirloom Spookie Pumpkin Seeds from True Leaf Market produce fruit weighing between 6 and 10 lbs. that has smooth orange skin and subtle ribbing. Each pumpkin measures approximately 6"...
Mustard Seeds - Small Gai Choi
35 to 45 Days to maturity. Brassica juncea var. capitata. Small Gai Choi Mustard Seeds. Heirloom. Cool season annual. This heirloom Chinese mustard green is very vigorous and productive. It...
Alyssum Seeds - Rosie O Day
63-77 Days to maturity. Lobularia maritima. Rosie O Day Alyssum Seeds. Non-GMO, Open-Pollinated, Annual. Rosie O'Day Alyssum flower seeds grow frost-tolerant and award-winning blooms where other flowers would wither. Rosie...
Lettuce Seeds - Tango - Organic
Lactuca sativa (33 days) Tango is a curled baby leaf variety that has a crisp, clean texture and holds up well with numerous salad dressings. Uniform attractive plants form tight,...
Hollyhock Seeds - Nigra
365 Days to maturity (2nd Year). Alcea rosea ’Nigra’. Hollyhock Nigra Flower Seeds. Non-GMO, open-pollinated, self-seeding short-term perennial (sometimes considered a biennial). Nigra hollyhock flowers are not easy to forget....
Calendula Seeds - Orange Pacific Beauty (Organic)
60-90 Days to Maturity. Calendula officinalis. Organic Orange Pacific Beauty Calendula Flower Seeds. Non-GMO, heirloom, open-pollinated, organic flower seeds. Annual in zones 3, 4, 5, 6, 7, 8, 9, 10....
Tomato Seeds - Salad - Garden Peach
67 - 80 Days to maturity (from transplant). Solanum lycoperscium. Garden Peach Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate salad tomato. Suitable for growing in garden plots, raised beds, and...
Squash Seeds - Winter - Long Island Cheese
Long Island Cheese Squash Seeds. 90 to 100 Days. Open Pollinated, Hierloom, Non-GMO, Winter Squash. Cucurbita moschata. AKA: Long Island Cheese Pumpkin. Download Free Vegetable Growing Guide PDF Squash Seeds...
Onion Sets - Snowball White
100 Sets This is a pre-order item and is expected to ship in March to April for spring planting. Other seeds, supplies, or kits ordered with this product may ship...
Seed Potatoes - Purple Majesty (Organic)
This item is a pre-order item and is expected to ship in March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This product...
Cucumber Seeds - Palace King - Hybrid
55-60 Days to maturity. Cucumis sativus ‘Palace King’. Palace King Cucumber Seeds. Warm-season annual hybrid. Non-GMO. This easy-to-grow, early maturing, sooyow type variety is burpless, very crisp, and has a...
Bean Seeds - Pole - Kurosanjaku Yard Long
70-90 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Kurosanjaku Yard Long Bean Seeds. Non-GMO, annual, open-pollinated, heat-tolerant, heirloom, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden plots,...
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