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]()
Spelt (Organic) - Sprouting Seeds
2-3 Days to Harvest. Triticum spelta. Organic Spelt Sprouting Seeds. Organic. Non-GMO. Sprouting. High Germination. Spelt is hardy, easy to sprout and grow, and very nutritious. It has a sweet,...
Corn Seeds - Sweet - Sugar Buns F1 Hybrid
70-80 Days to maturity. Zea mays. Sugar Buns Hybrid (treated) Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Yellow Soybeans (Organic) - Bulk Grains
Used for centuries in Eastern Asia as a food source and for its medicinal properties, these Organically grown soybeans are a fabulous source of plant protein. Soybean sprouts are incredibly...
Spinach Seeds - Winter Giant
50 days. Spinacia oleracea. Winter Giant Spinach Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and containers. Winter Giant is a very cold-hardy spinach...
Calendula Seeds - Solar Flashback Mix - Organic
50-60 Days to maturity. Calendula officinalis. Solar Flashback Mix Calendula Seeds. Non-GMO, Organic, Annual. Solar Flashback Mix Calendula flowers are a distinctive new family of flash calendulas, selected to highlight...
Gourd Seeds, Bitter - India - Hybrid
40-55 Days to Maturity (after transplanting). Momordica charantia ’India’. India Bitter Gourd Seeds. Non-GMO, warm-season, annual, hybrid. The India-type bitter melon has dark green skin; this hybrid's 6-8 inch fruits...
Pea Seeds - Snow - Taiwan Sugar (Organic)
60-70 Days to maturity. Pisum sativum. Organic Taiwan Sugar Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery...
Mustard Seeds - Spinach (Komatsuna) - Tendergreen
45 days. Mustard-Spinach or Komatsuna. Milder than regular mustard greens, this variety has thick, smooth leaves on upright, heat and cold tolerant plants. Tendergreen is widely used both in stir...
Gourds Seeds - Small Mix
Small Gourds Mix is ready in 90-120 days. This is a collection of different shapes in shades of white, cream, gold, yellow, and green. These gourds are suitable for decoration....
Tomato Seeds - Paste - Super Italian Paste
73-97 Days to maturity (from transplant). Solanum lycoperscium. Super Italian Paste Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, paste tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Radish Seeds - Easter Egg Blend
Non-GMO Easter Egg Blend Radish Seeds, Heirloom. Easter Egg Blend Radish Seeds are native to regions in Asia and were grown in Europe around 5,000 years ago. Freshly eaten radishes...
Caraway Seeds
455 Days to maturity (2nd year). Carum carvi. Caraway Seeds. Non-GMO, open-pollinated, heirloom, biennial herb seed. Attracts pollinators and is both cold and drought-tolerant once established. Caraway is an attractive...
Mustard Seeds - Florida Broadleaf
48 days. One of the first greens of the season. This 10 inch mustard has small, bright green, broad leaves with white midribs. A vigorous growing plant that is high...
Nasturtium Seeds - Empress of India
Empress of India Nasturtium Flower Seeds. Edible Flowers. Annual Flower. Mix with a salad of baby greens or use as a garnish. The dark leaves set off the dazzling, long-spurred...
Tomato Seeds - Slicing - Peron Sprayless
70 Days to maturity (from transplant). Solanum lycoperscium. Peron Sprayless Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, drought tolerant, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Yu Choy Sum Seeds - Jung Green
Yu Choy Sum Seeds - Jung Green. Heirloom, Non-GMO. Brassica rapa var parachinesis. 40-45 days. Warm season annual. Flowering Brassica is a fast growing green that can be harvested as...
Squash - Summer - Dark Green Zucchini (Organic)
Cucurbita pepo. (45-65 days) An early vigorous bush zucchini with straight, smooth, dark-green mottled fruits. Tastiest at 6-8" with pale greenish-white, firm flesh. Great for market growers and easy to...
Basil - Cinnamon - Microgreens Seeds
18-30+ days. This variety of basil may look like any other with faint shades of bronze in its stems, but the aroma and flavor will tell you otherwise. While still...
Cosmos Seeds - Candystripe
60-90 Days to maturity. Cosmos bipinnatus. Candystripe Cosmos Seeds. Non-GMO, annual, Heirloom, Open Pollinated. Who wouldn't love Candystripe? Enjoy stunning colors on one of the easiest of all flowers to...
Corn Seeds - Popcorn - Glass Gem
110 days. The Glass Gem variety of corn was developed by Carl Barnes, a farmer from Oklahoma, as a way of reconnecting with his Cherokee heritage. The Glass Gem seeds...
Pepper Seeds - Sweet - Mini Belle Mix
60-69 Days to maturity (from transplant). Capsicum annuum. Mini Belle Mix Pepper Seeds. Non-GMO, annual, open-pollinated, sweet pepper with no heat levels. 0 Scoville Heat Units. Suitable for growing in...
Pepper Seeds - Sweet - Sweet Pickle
75 Days to maturity (from transplant). Capsicum annuum. Sweet Pickle Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for growing in containers,...
Paracress Seeds - Toothache Plant
120-130 Days to maturity. Acmella oleracea. Toothache Plant Paracress Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in containers, garden plots, raised beds, flower borders, and greenhouses. Toothache Plant Paracress...
Squash Seeds - Summer - Sunburst Hybrid
Non-GMO Hybrid Sunburst Squash is a buttery-yellow scallop summer squash. Best picked when it grows 2-3 inches wide. Pattypan squash variety with a thin skin with a bush habit that...
Lettuce Seeds - Romaine - Little Caesar (Organic)
Organic Little Caesar Romaine Lettuce Seeds. 65 to 70 days to maturity. Lactuca sativa. Open Pollinated, Non-GMO, Annual. Little Caesar Lettuce is a very attractive, tall romaine type with crisp,...
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...
Rutabaga Seeds - Laurentian
90-95 days. Non-GMO. Heirloom. Laurentian Rutabaga Seeds from True Leaf Market produce deep purple and creamy yellow rutabagas weighing up to 1 lb. The smooth, uniform roots are typically between...
Alyssum Seeds - Carpet of Snow
56-63 Days to maturity. Lobularia maritima. Carpet of Snow Alyssum Seeds. Non-GMO, Open-Pollinated, Annual. Open-pollinated, seeds. Carpet of Snow Alyssum flower seeds grow one of the most familiar and beloved...
Parsley Seeds - Plain or Single (Organic)
70-80 Days to maturity. Petroselinum crispum. Organic Plain or Single Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Plain...
Onion Seeds - Long - Southport Red Globe
100-120 Days to maturity. Allium cepa. Southport Red Globe Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, cold tolerant, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, raised beds, and...
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