March is the month when most gardens really wake up. In colder regions, it is prime time for indoor seed starting and preparing beds. In milder climates, spring planting is already rolling, and in the warmest zones, the garden may be producing heavily while you begin shifting toward heat-loving crops.
Zones 1-7a: These zones experience cold winters with extended periods of freezing temperatures. In March, monitor soil conditions, thaw cycles, and late frosts as you prepare for early outdoor sowing. Indoors, this is a busy month for starting cool-season crops and hardy flowers under lights or in a greenhouse so they are ready to transplant as soon as the weather settles.
Zones 7b-9a: These zones experience mild winter weather and are warming quickly in March. Many cool-season crops can be direct sown outdoors, and succession planting helps keep harvests coming as temperatures rise. It is also a great time to start warm-season favorites indoors while keeping frost protection on hand for unexpected cold snaps. And of course, sprouts and microgreens are always in season indoors!
Zones 9b-12: Depending on your area, March can be peak garden season in these warm-winter zones. Many crops planted earlier are now producing, and this month often marks the transition from late cool-season planting to the start of warm-season gardening. In the hottest areas, you may begin planting heat lovers while timing your last rounds of tender cool-season crops before warmer weather arrives.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Pepper Seeds - Hot - Habanero Orange
100-109 Days to maturity (from transplant). Capsicum chinense. Habanero Orange Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, heat tolerant, drought tolerant, hot pepper with extra hot heat levels. 100,000...
Carrot Seeds - Purple
65-70 days. Purple carrot Seeds. Daucus carota subsp. sativus. Non-GMO. Heirloom. The Purple Carrot is unique in that it appears quite differently when it is sliced than when it is...
Squash Seeds - Summer - Golden Glory Hybrid
53 days. The 7 to 8 inch, 2-3" in diameter, smooth, waxy-skinned, gold fruits have creamy white, excellent tasting flesh. The vigorous open plant bears fruit of superior quality and...
Radish Seeds - Purple Plum
Non-GMO, Heirloom Purple Plum Radish Seeds. 25-30 days. Bright purple skin, firm white flesh, crisp, sweet and mild all season, never pithy of hot, hardy and adaptable. Download Free Vegetable...
Wildflower Seeds - Bee Mix
50-365 Days to maturity. Bee Friendly Wildflower Seeds Mix. A non-GMO mix of annuals and perennial bee-friendly wildflowers for zones 3-9. The Bee Friendly Wildflower Mix grows some of the...
Swiss Chard Seeds - Lucullus
50 days. The Lucullus Swiss Chard seed variety produces large green leaves and white stems. This variety is one of the best for gardeners looking for a swiss chard that...
Lemon Balm Seeds (Organic)
90 Days to maturity. Melissa officinalis. Organic Lemon Balm Seeds. Non-GMO, annual, perennial, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, and raised beds. Our Organic Lemon...
Tomato Seeds - Paste - La Roma IV Hybrid
76 Days to maturity (from transplant). Solanum lycoperscium. La Roma IV Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, determinate, paste tomato. Suitable for growing in garden plots, raised beds, and...
Lemon Mint Seeds
Monarda citriodora Annual. Non-GMO, Heirloom Lemon Mint Herb Garden Seed from True Leaf Market. Monarda citriodora. Lemon Mint resides in the mint family as a warm perennial. Lemon Mint develops...
Wild Bergamot Seeds - Bee Balm
65 Days to maturity. Monarda fistulosa. Bee Balm Wild Bergamot Seeds. Non-GMO, perennial, open-pollinated, heirloom. Suitable for growing in garden plots, raised beds, borders, and pollinator gardens. A native wildflower...
Pepper Seeds - Sweet - Mini Bell Yellow
60 Days to maturity (from transplant). Capsicum annuum. Mini Bell Yellow Pepper Seeds. Non-GMO, annual, open-pollinated, sweet-type pepper with no heat levels. 0 Scoville Heat Units. Suitable for growing in...
Tomato Seeds - Slicing - Brandywine Pink
90 Days to maturity (from transplant). Solanum lycopersicum. Brandywine Pink Tomato Seeds. Non-GMO, annual, potato leaf, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Dill Seeds - Mammoth Long Island
60-70 days. Long Island Mammoth Dill Seeds. Anethum graveolens. Non-GMO. Heirloom. Known as "Elephant Dill" for significantly longer and feathered 24" tall silvery blue greens, Mammoth Long Island is an...
Impatiens Seeds - Accent Series
70-77 Days to maturity. Impatiens walleriana. Accent Series Impatiens Seeds. Non-GMO, hybrid, annual. Premium Quality Seeds. Accent Series seeds deliver the country's most popularly grown and undisputed summertime bloom. Impatiens...
Basil Seeds - Lemon
Non-GMO, Lemon Basil Herb Seed from True Leaf Market. Ocimum basilicum x citriodorum is native to India. As basil has many different varieties, Lemon Basil Herb is considered non-sweet and...
Tray Insert - 18 Cell
Made from BPA free polystyrene, each sheet of these seed starter greenhouse tray inserts has 18 independent planting pots in a 3 cell by 6 cell configuration, with easy tear...
Tomato Seeds - Cherry - Rainbow Cherry Mix (Organic)
80 Days to maturity (from transplant). Solanum lycoperscium. Rainbow Cherry Mix (Organic) Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and...
Eggplant Seeds - Long Purple (Organic)
80 days. The Long Purple variety of eggplant grows to be up to eight to ten inches long . The Long Purple reaches maturity in eighty days and is suitable...
Tomato Seeds - Slicing - Black Krim (Organic)
75 Days to maturity (from transplant). Solanum lycopersicum. Organic Black Krim Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots, raised...
Seed Assortment - Medicinal & Tea Herb
Grow your own fresh medicinal and tea herbs indoors year round. Cultivate your own fresh, medicinal and herbal tea herbs, and enjoy the fun and benefits of indoor gardening. Easy...
Pea Seeds - Snap - Sugar Ann
Non-GMO. Heirloom. Sugar Ann Snap Pea Vegetable Garden Seeds. Pisum sativum. Sugar snap peas are a cross between garden and snow peas, as Sugar Ann Snap Peas were later developed...
Strawberry Seeds - Berries Galore Pink Hybrid
Package of 100 seeds. 75 days. Everbearing runner variety. In full sun, medium-large fruit saturated with sweetness and nutritious goodness; a fast grower; can be harvested every 3 to 4...
Tomato Seeds - Slicing - Jet Star Hybrid
72 Days to maturity (from transplant). Solanum lycopersicum. Jet Star Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Lettuce Seeds - Leaf - Ruby Red
Non-GMO Ruby Red Leaf Lettuce is ready in 35-45 days. Lettuce forms compact plants with loose, crumpled reddish-green leaves. Ruby Red is the darkest red of all red lettuces, won't...
Corn Salad (Mache) Seeds - Dutch Broad Leaved
50 days. Forms rosettes of smooth, spoon-shaped leaves coveted by fine chefs. Prized as early spring green. Fairly hardy this green can be mulched with straw to overwinter in cold...
No-Till Forage Friendly Cover Crop Mix
30-60 Days to termination. No-Till Forage Friendly Cover Crop Seeds. Non-GMO, annual, winter-killing, no-till, and forage-friendly. This mix has been created as a forage-safe option for home gardens, small farms,...
Purslane Seeds - Green
Non-GMO Purslane is ready to harvest in 50 days and is one of the most nutritionally dense foods you can grow in the garden. Performs best in hot weather and...
Shiso Herb Seeds (Perilla) - Purple (Red)
Non-GMO, Heirloom Purple Shiso Perilla Herb Garden Seed from True Leaf Market. AKA: Red Shiso. Perilla frutescens var. crispa. Purple Shiso is a warm annual native to India and China....
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