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 - Sweet - Big Bertha Hybrid
73 Days to maturity (from transplant). Capsicum annuum. Big Bertha Hybrid Pepper Seeds. Non-GMO, annual, F1 hybrid, sweet pepper with no heat level. 0 Scoville Heat Units. Resistant to Tobamovirus...
Coleus Seeds - Jazz Combo Mix
84-91 Days to maturity. Plectranthus scutellarioides. Coleus Jazz Combo Mix Seeds. Non-GMO, Annual. Jazz Combo Mix coleus seeds are uniquely exciting and fun to grow in any home or garden....
Chard Seeds - Perpetual Spinach
Not spinach at all, but because it still keeps giving healthy green leaves during the heat when most spinach has gone to seed it does seem perpetual or never ending....
Cucumber Seeds - Marketmore 80
60-70 Days to maturity. Cucumis sativus. Marketmore 80 Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds, and...
Pumpkin Seeds - Casper
Cucurbita pepo (115 days) Don't be scared, this ghostly white pumpkin is named after the friendly ghost. Casper is sure to please at Halloween with 15 pound pumpkins perfect for...
Bean Seeds - Bush - Gold Rush Wax
50-65 Days to maturity. Phaseolus vulgaris.Wax Gold Rush Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, AAS winner, bush, snap, wax bean. Suitable for growing in containers, garden plots, raised beds,...
Tomato Seeds - Slicing - Brandywine Yellow (Organic)
76-90 Days to maturity (from transplant). Solanum lycopersicum. Organic Brandywine Yellow Tomato Seeds. Non-GMO, warm season annual, organic, open-pollinated, heirloom, potato leaf, indeterminate, slicing tomato. Suitable for growing in garden...
Tomato Seeds - Cherry - Large Red Cherry (Organic)
75-80 Days to maturity (from transplant). Solanum lycoperscium. Organic Large Red Cherry Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds,...
Eggplant Seeds - Millionaire Purple Hybrid
55 days. Japan long-type produces early, high quality fruit over 8 inches long with brilliant black skin and a purple calyx. The tender flesh is nearly seedless. This is a...
Moonflower Seeds - Tall Night Flowering
112 Days to maturity. Ipomoea alba. Tall Night Flowering Moonflower Seeds. Non-GMO, annual. Tall Night Flowering moonflower seeds boast some of the most fragrant, spectacular, and rapid-growing blooms in the...
Pepper Seeds - Sweet - Cubanelle
65 Days to maturity (from transplant). Capsicum annuum. Cubanelle Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, drought tolerant, sweet pepper with mild heat levels. 100 to 500 Scoville Heat Units. Suitable...
Chinese Broccoli Seeds - Suiho - Hybrid
50 to 55 Days to maturity. Brassica oleracea var alboglabra. Chinese Broccoli Seeds - Suiho - Hybrid seeds. Annual, Hybrid. Also known as Noble Jade or Emerald Green variety. This...
Tomato Seeds - Slicing - Ace 55 VF
85 Days to maturity (from transplant). Solanum lycoperscium. Ace 55 VF Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Basil Seeds - Thai Sweet Large Leaf
35-40 Days to maturity. Ocimum basilicum. Sweet Large Leaf Thai Basil Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. A...
Basil Seeds - Red Leaf Holy Basil
65-75 days maturity. Ocimum sanctum. Red Leaf Holy Basil Seeds. Non-GMO, Heirloom. Annual. Holy basil is an essential herb in the Thai kitchen due to its unique flavor. This Holy...
Whole Oats (Organic) - Cover Crop Seeds
60 Days. Avena sativa. Oat is a cool weather crop that can withstand light frost but will die back in the winter or at temperatures below 5 to 10°F. This...
Oats and Peas Cover Crop Seed Mix
50-70 Days to termination. Oat and Peas Cover Crop Mix Seeds. Non-GMO, annual, winter-killing, no-till, forage-friendly. Plant as a spring, summer, or fall cover crop to restore vital nutrients and...
Melon Seeds - Charentais
90 Days to maturity. Cucumis melo var. inodorus. Charentais Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Radish Seeds - Sparkler
Non-GMO, Heirloom Sparkler Radish Seeds. This fast cool season crop is a delight with its pretty red skin that changes to white at the tip. Matures in 25 to 30...
Snapdragon Seeds - Sonnet Series
115-121 Days to maturity. Antirrhinum majus. Sonnet Series Snapdragon Seeds. Non-GMO, Premium Quality Seeds, hybrid, annual. Sonnet Series snapdragon seeds grow a fragrant, classic, and authentic touch of the Mediterranean...
Collards Seeds - Champion
75-85 days. Brassica oleracea var. viridis. Champion Collards seeds grow huge, slightly crumpled, juicy leaves. These collards leaves are cabbage-like, with a dark blue-green color. Champion collards has a mild...
Tomato Seeds - Slicing - Homestead
80 Days to maturity (from transplant). Solanum lycopersicum. Homestead Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, heat tolerant, humidity tolerant, drought tolerant, semi-determinate, slicing tomato. Suitable for growing in...
Chrysanthemum Greens Seeds - Oasis
40-50 Days to maturity. Glebionis coronaria var. oasis. Oasis Chrysanthemum Greens Seeds. Cool-season annual heirloom. Non-GMO. Oasis has small, deeply serrated, dark-green aromatic leaves that are more productive, vigorous, and...
Winter Rye (Organic) - Bulk Grains & Foods
Secale cereale. Annual, open-pollinated. 2-3 days for rye berry sprouts or 7-10 days for ryegrass. These Organic ryegrass seeds (not to be confused with ryegrass Lolium) seeds are great for...
Marigold (Signata) Seeds - Gem Series
63-77 days. Gem Series signata seeds promise a stunning and exotic twist to the traditional marigold popularly grown in the United States. Gem Series seeds grow tidy 9-12" dwarfed mounds...
Strawflower Seeds - Tall Double Mix
70-84 Days to maturity. Helichrysum bracteatum. Strawflower Tall Double Mix Seeds. Non-GMO, Annual. Tall Double Mix strawflower seeds grow some of the most recognizable summertime blooms, both indoors and out!...
Tomato Seeds - Paste - Amish Paste (Organic)
75-90 Days to maturity (from transplant). Solanum lycopersicum. Amish Paste (Organic) Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate, paste tomato. Amish Paste tomato plants produce one of the largest...
Aster Seeds - Crego Giant Mixture
91-105 Days to maturity. Callistephus chinensis. Crego Giant Mixture Aster Seeds. Non-GMO, Ornamental, Annual. Open-pollinated flower seeds. Crego Giant Mix Aster flower seeds grow a playful, robust, and familiar looking...
Eggplant Seeds - Florida Market
Florida Market eggplants plants are hardy and resistant to most diseases. They produce 9.5 inch by 6.5 inch fruits that are tear drop shaped. Fruits are dark purple and glossy....
Lettuce Seeds - Jericho - Organic
Silky smooth neon green romaine leaves reach for the sky in this amazing lettuce with origins in the desert. Jericho hails from Israel and is no stranger to the heat....
Tomato Seeds - Cherry - Black Cherry (Organic)
75 Days to maturity (from transplant). Solanum lycoperscium. Tomato - Black Cherry (Organic) Tomato Seeds. Non-GMO, annual, organic, heirloom, AAS winner, indeterminate, slicing, paste, salad, cherry tomato. Suitable for growing...
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