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]()
Pumpkin Seeds - Big Max
Big Max Pumpkins are known for their size. This is the pumpkin to grow if you want to have an enormous pumpkin. Big Max Pumpkins can weigh over 100 lbs...
Molokhia - Egyptian Spinach Seeds
60 Days to maturity. Corchorus olitorius. Egyptian Spinach Molokhia Seeds. Warm-season annual heirloom. Egyptian Spinach Molokhia, also called jute leaf, is not a true spinach. It is grown for the...
Bean Seeds - Bush - Strike
50-65 Days to maturity. Phaseolus vulgaris. Strike Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, bush, snap, green bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Bean Seeds - Bush - Provider
50-65 Days to maturity. Phaseolus vulgaris. Provider Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, heat-tolerant, bush, snap, green bean. Suitable for growing in containers, garden plots, raised beds, and...
Cucumber Seeds - Homemade Pickles
Non-GMO, open-pollinated Homemade Pickles Cucumber Seeds from True Leaf Market yield a pickling-variety of cucumber with small white spines and crunchy cores. Growing on up to 5' disease-resistant vines, the...
Bean Seeds - Bush - Roma II
50-65 Days to maturity. Phaseolus vulgaris. Roma II Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, AAS winner, high-yielding, heat-tolerant, bush, snap, romano, green bean. Suitable for growing in containers, garden...
Zinnia Seeds - Lilliput Mixture
54-70 Days to maturity. Zinnia elegans. Lilliput Mixture Zinnia Seeds. Non-GMO, organic, annual. Lilliput Mixture Zinnia Flowers are easy to grow from seeds and ideal for hot and drought-prone gardens....
Pumpkin Seeds - Connecticut Field
Connecticut Field Pumpkin is an heirloom pumpkin that has been around since colonial time. It was first grown by Native Americans in New England. This is the pumpkin to grow...
Tomatillo Seeds - Toma Verde
70 days. Physalis ixocarpa. Toma Verde Tomatillo Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for containers, garden plots, raised beds, and fields. Early, prolific green tomatillo with flat-round...
Melon Seeds - Cantaloupe - Hearts of Gold
80-90 Days to maturity. Cucumis melo. Hearts of Gold Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Petunia Seeds - Double Cascade Series (Pelleted)
98-105 Days to maturity. Petunia x hybrida. Pelleted Double Cascade Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Growing Double Cascade Series seeds promise to excite your garden with...
Tomato Seeds - Cherry - Yellow Pear
78 Days to maturity (from transplant). Solanum lycoperscium. Yellow Pear Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and...
Cucumber Seeds - Sweet Success Hybrid
60 days. The Sweet Success Hybrid cucumber is a large variety of cucumber that is sweet and tender. The Sweet Success Hybrid is dark green and smooth, and grows to...
Zinnia Seeds - Zahara Series (Coated)
50-60 Days to maturity. Zinnia elegans. Zahara Series Zinnia Seeds. Non-GMO, annual. Zahara Series Zinnia flower seeds are brilliant, easy to grow, and renowned for their hardiness and ability to...
Bean Seeds - Bush - Blue Lake (Organic)
50-65 Days to maturity. Phaseolus vulgaris. Organic Blue Lake Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom snap bush bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Bean Seeds - Bush - Royal Burgundy
50-65 Days to maturity. Phaseolus vulgaris. Royal Burgundy Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, bush, snap bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Tomato Seeds - Cherry - Gold Nugget
60 Days to maturity (from transplant). Solanum lycoperscium. Gold Nugget Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Gourds Seeds - Birdhouse
110+ days. Fun, easy to grow plants yield gourds that can be made into attractive hanging birdhouses or dippers. Allow fruit to mature on vine as long as possible. Approximately...
African Marigold Seeds - Taishan Series
77-84 days. Taishan Series is easy to grow from seed and delivers neat and disease-tolerant marigolds ideal for gardens prone to heat, drought, and poor soils. With 20% shorter peduncles...
Corn Seeds - Flour - Painted Mountain (Organic)
90 Days to maturity. Zea mays. Painted Mountain Organic Corn Seeds. Non-GMO, warm season annual, certified organic, open-pollinated, heirloom, Flour Corn. Suitable for growing in garden plots or raised beds....
Bean Seeds - Pole - Scarlet Runner
50-75 Days to maturity. Phaseolus coccineus. Scarlet Runner Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, AAS Winner, drought tolerant, high-yielding, pole, snap string bean. Suitable for growing in containers, garden...
Pumpkin Seeds - Dills Atlantic Giant
120 days. Dill's Atlantic Giant Pumpkin Seeds. Cucurbita maxima. Open Pollinated. Non-GMO. Whether growing a pumpkin worthy of the county fair or looking to create enormous jack-o-lanterns for fall, Dill's...
Tomato Seeds - Slicing - Marglobe
72 Days to maturity (from transplant). Solanum lycoperscium. Marglobe Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, drought tolerant, heat tolerant, slicing tomato. Suitable for growing in garden plots, raised beds,...
Cucumber Seeds - Pickling - Bush Pickle
50 Days to maturity. Cucumis sativus. Bush Pickle Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses (with...
Flower Mix - Zinnia Special Collection
Attract pollinators all season long with beautiful multi-colored zinnia blooms. Zinnias are not only one of the loveliest flowers in the garden, but they are also easy to grow and...
Larkspur Seeds - Giant Imperial Mixture
77-84 days to maturity. Delphinium consolida. Giant Imperial Mix Larkspur Flower Seeds. Non-GMO, annual, open-pollinated. This crop is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses....
Cosmos Seeds - Sensation Mixture
49-63 Days to maturity. Cosmos bipinnatus. Sensation Mixture Cosmos Seeds. Non-GMO, annual, Heirloom, Open Pollinated. Sensation Mix cosmos seeds grow some of the season's most timeless and familiar blooms. Sensation...
Squash Seeds - Winter - Delicata
Non-GMO Delicata Winter squash is ready in 100 days. This is one of the tastier winter vine squashes with creamy flesh tastes like sweet potatoes. This is where the other...
Cucumber Seeds, Japanese - Progress - Hybrid
50-60 Days to Maturity.Cucumis sativus Progress Japanese Cucumber Seeds F1. Hybrid. Non-GMO. Annual. Non-GMO. This Japanese cucumber has glossy, green, smooth skin and is crisp and very tasty. This is...
Spinach Seeds - Red Malabar
70 days. Basella rubra. Red Malabar Spinach Seeds. Non-GMO, warm-season annual, heirloom, open-pollinated. This crop is suitable for trellised garden plots, raised beds, and large containers. Red Malabar is a...
Sunflower Seeds - Mammoth Grey Stripe (Organic)
90-110 Days to maturity. Helianthus annuus. Organic Mammoth Grey Stripe Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. Mammoth sunflower seeds grow one of the tallest, brightest, and most breathtaking flowers...
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