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]()
Tomato Seeds - Slicing - Calypso
75 Days to maturity (from transplant). Solanum lycopersicum. Calypso Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, heat and humidity tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots,...
Tomato Seeds - Paste - Golden Roma
75 to 90 Days to maturity (from transplant). Solanum lycoperscium. Golden Roma Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, yellow paste tomato. Suitable for growing in garden plots, raised beds,...
Sunflower Seeds - Goldie (Organic)
75 Days to maturity. Helianthus annuus. Goldie Organic F1 Hybrid Sunflower Seeds: Non-GMO. Organic. Ornamental. Annual. Goldie is feathery and unique hybrid sunflower that looks like pompoms of sunshine! If...
Celosia Seeds - Plumed - Forest Fire
85-95 Days to maturity. Celosia plumosa. Forest Fire Celosia Flower Seeds. Non-GMO, Annual. These classic Celosias are high performers throughout the summer with their densely packed and vibrantly colored spires....
Sweet Pea Seeds - High Scent
75-85 Days to Maturity. Lathyrus odoratus. Sweet Pea High Scent Seeds. Non-GMO, annual, open-pollinated flower seeds. High Scent sweet peas are a timeless and brilliant addition to any home or...
Rapeseed - Canola
74-140 Days to maturity. Brassica napus. Spring Rapeseed Canola Seeds. Non-GMO, open-pollinated biennial. Spring Rapeseed Canola can be grown as sprouts, microgreens, roots, leafy greens, vegetable oil, biofuel, forage, or...
Tomato Seeds - Cherry - Small Red Cherry (Organic)
75 Days to maturity (from transplant). Solanum lycopersicum. Organic Small Red Cherry Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds,...
Melon Seeds - Cantaloupe - Iroquois
75-90 Days to maturity. Cucumis melo. Iroquois Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant to...
Brachycome Seeds - Splendor Mix
70-84 Days to maturity. Brachyscome iberidifolia. Splendor Mix Brachycome Seeds. Non-GMO, Ornamental, Perennial. Splendor Mix Brachycome seeds promise an authentic touch of western Australia and New Zealand in your home...
Tomato Seeds - Cherry - Manitoba
60-70 Days to maturity (from transplant). Solanum lycoperscium. Manitoba Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses. Resistant to Fusarium...
Sunflower Seeds - Evening Sun
75 Days to maturity. Helianthus annuus. Evening Sun Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. Evening Sun is a beautiful bi-color sunflower with shades of burgundy, bronze, and yellow. These...
Alternanthera - Purple Knight
70-77 Days to maturity. Alternanthera dentata. Alternanthera Purple Knight Seeds. Non-GMO, Annual or Perennial. Purple Knight Alternanthera seeds promise an exotic and neat ornamental foliage ideal for many humid gardens...
Tomato Seeds - Cherry - Currant Red
70 Days to maturity (from transplant). Solanum lycoperscium. Currant Red Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Currant...
Spring Mix Cover Crop
30-90 Days to termination. Spring Mix Cover Crop Seeds. Non-GMO, annual, no-till, forage-friendly, and winter-killing with extended freezing temperatures. This mix contains plants that grow well during the cool spring...
Basil Seeds - Persian AAS
75 Days to maturity. Ocimum basilicum. Persian AAS Basil Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. An All-America Selections (AAS)...
Pepper Seeds - Hot - Hot Portugal (Organic)
60-85 Days to maturity (from transplant). Capsicum annuum. Organic Hot Portugal Pepper Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, deer resistant, hot pepper with medium to hot heat levels. 5,000 to...
Tomato Seeds - Slicing - Evergreen
72 Days to maturity (from transplant). Solanum lycopersicum. Evergreen Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses. Also...
Turnip Seeds - White Globe Round
White Globe Turnip Seeds. They're ideal for mini round turnips. These roots are nearly perfectly rounded and make a great quick Spring or Fall planted crop! Approximately 12,000 seeds per...
Corn Poppy Special Collection - American Legion
Internationally recognized as the symbolic flower for fallen soldiers, the American Legion corn poppy is one of the most cherished and vibrant blooms in the world. Packaged in a patriotic...
Tomato Seeds - Slicing - Moskvich
60-75 Days to maturity (from transplant). Solanum lycopersicum. Moskvich Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Tomato Seeds - Slicing - Orange Queen
65-70 Days to maturity (from transplant). Solanum lycoperscium. Orange Queen Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Orange...
Tomato Seeds - Slicing - Red Russian
70-80 Days to maturity (from transplant). Solanum lycopersicum. Red Russian Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Dimorphotheca Seeds - Mixed Colors
70-77 Days to maturity. Dimorphotheca sinuata. Mixed Colors Dimorphotheca Seeds. Non-GMO, Ornamental, Annual. Mixed Colors dimorphotheca seeds promise a stunning and exotic African twist to the more traditional daisy cultivated...
Tomato Seeds - Salad - Super Sioux
70 Days to maturity (from transplant). Solanum lycopersicum. Super Sioux Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, heat tolerant, drought tolerant, semi-determinate, salad tomato. Suitable for growing in garden...
Lobelia Seeds - Vulcan Red (Pelleted)
77-84 Days to maturity. Lobelia speciosa. Vulcan Red Lobelia Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, perennial. Open Pollinated. Vulcan Red Cardinal Flower seeds deliver exotic, early-blooming, and easy-to-grow lobelia plants...
Tomato Seeds - Slicing - Brandywine Black Regular Leaf
70-85 Days to maturity (from transplant). Solanum lycopersicum. Variety name Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Shiso Seeds - Bicolor (Organic)
75 Days to maturity. Perilla frutescens. Organic Bicolor Shiso Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Bicolor Shiso features...
Zinnia Seeds - Crystal Series
50 " 55 days. Annual. Zinnia angustifolia. Crystal Series Zinnia flower seeds promise a simple, yet award-winning addition to your home or garden. Crystal Series Zinnia seeds grow a compact...
Parsley Seeds - Kitchen Garden Blend (Organic)
70-99 Days to maturity. Petroselinum crispum. Organic Kitchen Garden Blend Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Organic...
Watermelon Seeds - Mini - Baby Doll Hybrid (Organic)
70-75 Days to maturity. Citrullus lanatus. Baby Doll F1 Hybrid Organic Watermelon Seeds. Non-GMO, annual, organic, hybrid, heat tolerant, seeded, mini watermelon. Suitable for growing in garden plots and large...
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