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]()
Squash Seeds - Korean, Summer - King Ka Ae -...
Squash Seeds - Korean, Summer - King Ka Ae - Hybrid. Non-GMO. Cucurbita moschata. 55-70 days to maturity after transplanting. Warm season annual. Excellent tasty Korean summer squash. Fruits have...
Pepper Seeds, Sweet - Marconi Red (Organic)
73 Days to maturity (from transplant). Capsicum annuum. Marconi Red (Organic) Pepper Seeds. Non-GMO, annual, open-pollinated, organic, heirloom, high-yielding, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units....
Squash Seeds - Summer - Scallop Yellow Bush
Cucurbita pepo (49 days) Scallop Yellow Bush is a bush type squash that produces nice yields of flat, round fruit. They remind me of flying saucers. Many times called Patty...
Corn Seeds - Popcorn - Japanese Hulless
86 Days to maturity. Zea mays. Japanese Hulless Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Pop Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Rosemary Seeds (Organic)
120-180 Days to maturity. Salvia rosmarinus. Organic Rosemary Seeds. Non-GMO, organic, open-pollinated, heirloom, perennial herb. Rosemary is a popular culinary aromatic herb that can be grown in garden plots and...
Pak Choi Seeds - Rosette Tatsoi
40 to 50 Days to maturity. Brassica rapa narinosa. Rosette Tatsoi Chinese Cabbage (Pak Choi) Seeds. Non-GMO, Open Pollinated, Heirloom, Annual. This specialty pak choi is quite cold-tolerant, even being...
Broccoli Seeds - Romanesco - Organic
Brassica oleracea (75 days) Romanesco reminds me of the patterns you would see when looking through a kaleidoscope as a kid. It has great spiraling designs and shades of apple-green...
Mustard Seeds - Misome Hybrid
30 days to maturity. Brassica campestris Narinosa group. Misome Hybrid Mustard Seeds. Non-GMO, warm-season, annual, hybrid. A relatively recent hybrid between Komatsuna and Tatsoi, this versatile, uniform, and hardy green...
Sorrel - Large Leaf - Microgreens Seeds
Resealable bag of Large Leaf Sorrel seed for growing microherbs. Sorrel grows best in soil and has a delightful lemony tang. Select a Different Use for This Seed: Herb Sorrel...
Cleome Seeds - Queen Mixture
70-77 Days to maturity. Cleome hassleriana. Cleome Queen Mixture Seeds. Non-GMO, annual. Ornamental. Queen Mixture cleome seeds grow one of summer's most unique, exciting, and eye-catching blooms found in any...
Leafy Greens Seed Assortment - 7 Pack
Everyone knows that leafy greens are packed with essential nutrients. This collection goes beyond that to show that they can be beautiful and flavorful. From spicy arugula to tender lettuce,...
Beet Seeds - Bulls Blood - Organic
55 days. Certified Organic Bull's Blood Beet Garden Seed. Bull's Blood Beet Seeds have been known to grow well in containers, flowerbed borders, and cottage gardens. Plants grow to be...
Bean Seeds - Pole - Yu Long Noodle Kin Yard...
65-75 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Yu Long Noodle Kin Yard Long Bean Seeds. Non-GMO, annual, open-pollinated, heat-tolerant, heirloom, pole, snap, Asian, specialty bean. Suitable for growing in...
Bean Seeds - Bush - Early Thorogreen Lima
69 Days to maturity. Phaseolus lunatus. Early Thorogreen Bush Lima Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, bush, shell, lima bean. Suitable for growing in containers, garden plots, raised beds,...
Pepper Seeds - Hot - Caribbean Blend
60-69 Days to maturity (from transplant). Capsicum chinense. Caribbean Blend Pepper Seeds. Non-GMO, annual, open-pollinated, high yielding, deer resistant, heat tolerant, drought tolerant, hot pepper with extra hot heat levels....
Cauliflower Seeds - Graffiti Hybrid
Package of 100 seeds. 80 to 90 days. A rare and stunning hybrid cauliflower, ideal for fresh market where the intense purple color is sure to garner attention. Upright, vigorous...
Tomato Seeds - Slicing - Brandywine Red Regular Leaf
80-100 Days to maturity (from transplant). Solanum lycopersicum. Brandywine Red Tomato Seeds. Non-GMO, annual, regular leaf, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Onion Seeds - Bunching - Red Beard
40-50 Days to maturity. Allium fistulosum. Red Beard Japanese Bunching Onion Seeds. Non-GMO, annual, perennial, open-pollinated, heirloom, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers....
Aster Seeds - Powderpuff Mix
91-105 Days to maturity. Callistephus chinensis. Powderpuff Mix Aster Seeds. Non-GMO, Ornamental, Annual. Powderpuff Mix Aster flower seeds are a tidy and vibrant addition to grow in any home or...
Leek Seeds - Carentan
Non-GMO, Open-Pollinated, Heirloom Carentan Leek Seeds from True Leaf Market. Carentan leeks are an excellent addition to dishes that need an extra oniony zest. Tender white stems grow 8.5 inches...
Corn Seeds - Flint - Hopi Blue (Organic)
100 Days to maturity. Zea mays. Blue Hopi Organic Corn Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, Flint and Flour Corn. Suitable for growing in garden plots or raised beds. Corn...
Watermelon Seeds - Picnic - All Sweet
90-105 Days to maturity. Citrullus lanatus. All Sweet Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Resistant to Anthracnose (1), Fusarium...
Buckwheat Seeds - Japanese - Organic
Fagopyrum esculentum(49 days) Buckwheat is the perfect smother crop, adding valuable green manure to your soil. You can also harvest it for seed. We do both. We thresh the grain...
Tomato Seeds - Salad - Patio Hybrid
70 Days to maturity (from transplant). Solanum lycoperscium. Patio Hybrid Tomato Seeds. Non-GMO, annual, hybrid, determinate, drought tolerant, heat tolerant, AAS Winner, slicing tomato. Suitable for growing in garden plots,...
Turnip Seeds - Hakurei - Hybrid
Turnip Seeds - Hakurei - Hybrid. Non-GMO. Brassica rapa subsp. rapa. 25-45 days depending on type of maturity. Cool season annual. This outstanding Japanese turnip has an excellent sweet and...
Bean Seeds - Bush - Light Red Kidney (Organic)
85-95 Days to maturity. Phaseolus vulgaris. Organic Light Red Kidney Bean Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, bush, shelling bean. Suitable for growing in containers, garden plots, raised beds, and...
Corn Salad Seeds - French
40 days. Valerianella olitoria. French Corn Salad Seeds. Non-GMO, annual, open-pollinated. This crop is suitable for garden plots, raised beds, and containers. French corn salad, also known as mache or...
Pepper Seeds, Hot - Poblano - Organic
70-79 Days to maturity (from transplant). Capsicum annuum. Poblano Organic Pepper Seeds. Non-GMO, annual, organic,, open-pollinated, heirloom,,, deer resistant, heat tolerant, drought tolerant, hot-type pepper with mild heat levels. 1,000...
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