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]()
Lanceleaf Coreopsis Seeds
100-300 Days to maturity. Coreopsis lanceolata. Lanceleaf Coreopsis Seeds. Non-GMO, Perennial. Lanceleaf Coreopsis flowers are perennial wildflowers with solitary yellow daisy-like flowers blooming on long stalks from May to August....
Hollyhock Seeds - Indian Spring
2nd-year maturity. Alcea rosea. Hollyhock Indian Spring Seeds. Non-GMO, Perennial/Biennial. Indian Spring Mix hollyhock is easy to grow from seed and ideal for gardens with mild winters across North America....
Carrot Seeds - Purple Haze Hybrid
70 days. The Purple Haze carrot produces roots with a beautiful blend of purple and orange that looks almost tie dye-like. Each carrot has a deep purple exterior with a...
Borage Seeds (Organic)
60-70 Days to maturity. Borago officinalis. Organic Borage Seeds. Non-GMO, annual, open-pollinated, heirloom herb. Borage is commonly referred to as a starflower due to its beautiful, star-shaped blue flowers. This...
Carrot Seeds - Nantes Mini Core
Nantes Mini Core carrots are an excellent carrot to grow in a home garden. This variation produces roots that have little to no core, giving them a great crunch. Plant...
Spinach Seeds - Matador Viking
45 days. Spinacia oleracea. Matador Viking Spinach Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for containers, garden plots, raised beds, and fields. 1933 heirloom with smooth, dark green...
Sunflower Seeds - Indian Blanket
75-90 Days to maturity. Helianthus annuus. Indian Blanket Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. Indian Blanket blooms gorgeous flowers that are shades of orange, red, and yellow. These beautiful...
Pumpkin Seeds - Musquee De Provence
C. moschata (122 days) Musquee De Provence is a French heirloom that was introduced to this country by Vaughan's Seed Store in 1899. One of the most distinct pumpkins you...
Chinese Cabbage Seeds - Chun Yeon Gold - Hybrid
60-70 Days to maturity. Brassica rapa var pekinensis 'Chun Yeon Gold'. Chun Yeon Gold Hybrid Chinese Cabbage Seeds. Annual Hybrid. Chun Yeon Gold is a napa-type Chinese Cabbage that develops...
Onion Seeds - Bunching - White Ishikura (Organic)
60-66 Days to maturity. Allium fistulosum. Organic Bunching White Ishikura Onion Seeds. Non-GMO, annual, perennial, organic, open-pollinated, heirloom, cold hardy, bunching onion. Suitable for growing in greenhouses, garden plots, raised...
Radish Seeds - Crimson Giant
Raphanus sativus (29 to 40 days) Sometimes called Crimson "Giant Globe Radish" or "Giant Butter Radish". Crimson Giant Radish seeds grow large 1 1/2 - 2" globe shaped crimson red...
Sunflower Seeds - Maximilian
90-110 Days to maturity. Helianthus maximiliani. Maximilian Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Perennial. Heirloom. Maximilian sunflower seeds grow a playful and unique perennial variation on a classic summertime favorite....
Zucchini Seeds - Round
Cucurbita pepo Round Zucchini is a stunning plant with speckled green leaves born on a robust bush-type plant. Super fast growing and are generally eaten when they are 3-4" in...
Tomato Seeds - Slicing - Big Rainbow
85-90 Days to maturity (from transplant). Solanum lycopersicum. Big Rainbow Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Radish - Red Stem - Microgreens Seeds
Red Stemmed Microgreens Seeds. Raphanus sativus. Non-GMO. Microgreen Harvest 8 to 12 Days. Selected specifically for their red stem / green leaf (cotyledon) combination, these red stemmed radish seeds grow...
Melon Seeds - Honeydew - Orange Flesh
105 Days to maturity. Cucumis melo. Orange Flesh Honeydew Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Honeydew Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Pea Seeds - Thomas Laxton
60-70 days. Pisum sativum Non-GMO. Heirloom. A true American heirloom, this pea originated in rural England in the 1800s and was bred by Thomas Laxton's sons who named the variety...
Buckwheat Groats (Organic) - Bulk Grains
*Not to be used for sprouting* These hulled buckwheat groats are an ideal kitchen staple. Hulled Buckwheat seeds, also referred to as groats, are abundant in protein and fiber content....
Radish Seeds - Easter Egg - Organic
Raphanus sativus (30 days) Oh what fun! Hunt Easter "egg" radishes in your own garden. Amazing array of colors will pop from your garden and straight into your salad bowl....
Wormwood Herb Seeds
85 Days to maturity. Artemisia absinthium. Wormwood Herb Seeds. Non-GMO, perennial, open-pollinated, heirloom. Suitable for growing in garden plots, raised beds, and borders. Known for its silvery-green foliage and strong,...
Onion Seeds - Intermediate - Red Torpedo
110 Days to maturity. Allium cepa. Red Torpedo Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, bulbing, intermediate-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. A fantastic onion...
Angelica Seeds
60-90 Days to maturity. Angelica archangelica. Angelica Seeds. Non-GMO, biennial, open-pollinated, heirloom. Suitable for growing in garden plots, herb gardens, perennial borders. Angelica herb seed is a hardy biennial or...
Tomato Seeds - Slicing - Beefsteak Rainbow Blend
85 Days to maturity (from transplant). Solanum lycopersicum. Beefsteak Rainbow Mix Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Kale Seeds - Portuguese
Portuguese Kale Seeds. Brassica oleracea. 85 days to maturity. Heirloom. Annual. This Kale variety may be the hardiest of the cabbage kin. Approximately 8,000 seeds/ounce Kale Seeds - Portuguese It...
Tomato Seeds - Salad - Jubilee
72-85 Days to maturity (from transplant). Solanum lycopersicum. Jubilee Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, 1943 AAS winner, indeterminate, salad tomato. Suitable for growing in garden plots, raised...
Salsify Seeds - Sandwich Island
Sandwich Island Salsify is a root vegetable that you won't find in the grocery store. Also referred to as an oyster plant, it is a plant that tastes like an...
Basil Seeds - Purple Ruffles
Non-GMO, Heirloom Purple Ruffles Basil Herb Seed from True Leaf Market. Ocimum basilicum x purpurascens. As basil has many different types, Purple Ruffles Basil is a sweet cultivar that grows...
Radish Seeds - China Rose - Organic
55 days. This popular radish for sprouting produces crisp rose colored winter radishes. Radishes are 8" long by 2" wide with rose colored skin and white flesh. Not suitable for...
French Marigold Seeds - Sparky - Organic
63-77 Days to maturity. Tagetes patula. Organic Sparky Marigold Seeds. Non-GMO, annual, Open Pollinated. Sparky Mixture marigold seeds offer one of the most vibrant and inexpensive blooms available to the...
Cucumber Seeds - Armenian (The Duke)
65 Days to maturity. Cucumis melo. The Duke Armenian Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious slicing cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds,...
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