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]()
Dill Seeds - Bouquet
65 Days to maturity. Anethum graveolens. Bouquet Dill Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, and raised beds. 3-foot plant with strongly aromatic foliage,...
Crimson Clover - Organic - Cover Crop Seeds
70-90 Days. Trifolium incarnatum. Organic. Cover Crop. Non-GMO. Heirloom Organic crimson clover seeds are an ideal annual garden companion and cover crop for plants and soils deficient in nitrogen. Use...
Swiss Chard Seeds - Rainbow Mixture
60 days. The Rainbow Mixture Swiss Chard seed mix is a blend of different colored swiss chard varieties. The chard can grow in zones 6 and up, and the leaves...
Lettuce Seeds - Leaf - Black Seeded Simpson
These non-GMO Black Seeded Simpson seeds grow into vibrant, green leaves of lettuce that are ready to harvest in just 40 to 49 days. The Black Seeded Simpson lettuce can...
Carrot Seeds - Danvers 126 (Organic)
65-70 days. Organic Danvers 126 Carrot Seeds. Daucus carota subsp. sativus. Non-GMO. Heirloom. Danvers carrot seeds is a hardy 19th century American garden heirloom grown for its rugged tolerance to...
Geranium Seeds - Pinto Premium Series
91-105 days maturity. Pelargonium x hortorum . Geranium Pinto Premium Series Seeds. Non-GMO, Annual. Ornamental. Pinto Premium Series geranium seeds promise some of the most classic yet eye-catching blooms available...
Basil Seeds - Genovese (Organic)
60-90 days to maturity. Ocimum basilicum. Organic Genovese Basil Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Vigorous, tall-growing, large-leaved...
Peppermint Seeds (Organic)
Perennial herb garden seeds. Certified Organic by Oregon Tilth. Non-GMO, Heirloom Peppermint Herb Garden Seed from True Leaf Market. Mentha sp. Peppermint plants are cool perennial and hybrid mints native...
Barley - Whole (Organic) - Grass Seeds
Barley grass sprouting seed, with the hull on (whole barley). Great germination rate and a great seed for sprouting, growing barleygrass and more. Grows healthy, thick bladed barley grass for...
Wildflower Seeds - Save the Monarchs
Save The Monarchs Seed Collection. Ornamental Flower Seeds. 100,000 seeds of 13 Varieties of Assorted Wildflower Seeds. Heirloom. Non GMO. High Germination. Save the Monarchs Seed Collection is an exclusive...
Garbanzo Bean - Organic - Sprouting Seeds
2-5 Days. Cicer arietinum. High Germination. Organic. Sprouting. Widely known as chickpea or chana, non-GMO Organic garbanzo beans are one of the most nutritious and protein-rich sprouting seeds. Ready to...
Bean Seeds - Bush - Jade
50-65 Days to maturity. Phaseolus vulgaris. Jade Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat-tolerant, rust resistant, high-yielding, bush, snap green bean. Suitable for growing in containers, garden plots, raised...
Pumpkin Seeds - Jack O Lantern
90-110 days. Jack O Lantern Pumpkin Seeds. Cucurbita pepo. Open Pollinated. Non-GMO. Producing bright orange 10-12 lb pumpkins a piece, Jack O Lantern pumpkins are the ideal seeds for Halloween...
Pea Seeds - Snow - Oregon Sugar Pod II
65-70 days. Oregon Sugar Pod II Snow Pea Seeds. Pisum sativum. Non-GMO. Heirloom. Oregon Sugar Pod II snow pea is an American heirloom crop specifically bred for the cooler Pacific...
Jiffy-7 Peat Seed Starting Pellets (Organic)
Organic Jiffy 7 seed starter pellets are the best way to start garden seedlings indoors early. Root permeable. Just add water, sow and transplant the seedlings directly. Available in small...
Viola Seeds - Sorbet Series
91-98 Days to maturity. Viola cornuta. Sorbet Series Viola Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, perennial. Sorbet Series seeds grow year-round violas in your home or garden when others might...
Carrot Seeds - Rainbow Blend (Organic)
65-75 days. The Rainbow Blend Carrot is an excellent way to get lots of colors in the garden all at once! This kaleidoscope of carrots is a colorful mixture of...
Mustard Seeds - Southern Giant Curled
Non-GMO, Heirloom Southern Giant Curled Mustard Seeds from True Leaf Market. Southern Giant Curled Mustard is a staple in Southern gardens. It has large, bright green fringed and curled leaves...
Pea Seeds - Shelling - Lincoln
60-70 Days to maturity. Pisum sativum. Lincoln Pea Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery mildew and...
Pak Choi Seeds - White Stem
Up to 33 days. Pak Choi is also known as Bok Choy. The plant produces large, green leaves off a thick, white stem. Leaves have a mild and peppery flavor,...
French Marigold Seeds - Sparky Mixture
63-77 Days to maturity. Tagetes patula. Sparky Mixture Marigold Seeds. Non-GMO, annual, open-pollinated. Sparky Mixture French marigold seeds offer one of the most vibrant and inexpensive blooms available to the...
Tomato Seeds - Slicing - Cherokee Purple (Organic)
80-90 Days to maturity (from transplant). Solanum lycopersicum. Organic Cherokee Purple Tomato Seeds. Non-GMO, warm-season annual, organic, open-pollinated, heirloom, heat-tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots, raised...
Lettuce Seeds - Butterhead - All Year Round
65-75 days. All Year Round Butterhead Lettuce Seeds. Lactuca sativa. Non-GMO. Annual. An award-winning and absolutely hardy cultivar of butter head, Buttercrunch is tender, delicious, and looks as good in...
Tobacco Seeds - Virginia 116
~65 Days from transplant to maturity. Nicotiana tabacum. Virginia 116 Tobacco Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Swiss Chard Seeds - Rainbow Mixture (Organic)
60 days. Organic Rainbow Mixture Swiss Chard seeds. Beta vulgaris var. cicla. Non-GMO. Organic Rainbow mixture swiss chard seed is the perfect variety mix for the home gardener who wants...
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