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 - 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...
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...
Rye - Winter (Organic) - Grass Seeds
This is rye grain (Secale cereale) - not Ryegrass (Lolium). It is not for over-seeding lawns. Grow just like wheatgrass and barleygrass, and discover how rich the flavor of Rye...
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,...
Bean Seeds - Bush - Tendergreen
50-65 Days to maturity. Phaseolus vulgaris. Tendergreen Bush Bean Seeds. Non-GMO, annual, heirloom, high-yielding, heat tolerant, bush, snap, green bean. Suitable for growing in containers, garden plots, raised beds, and...
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,...
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...
Kale Seeds - Dwarf Siberian - Organic
Brassica napus (50 days) Frilly green leaves dance in the crisp early morning cold and thrive! Why? Because its roots were in Russia! Plants grow 14" tall and are super...
Tomato Seeds - Cherry - Fox Cherry (Organic)
85 Days to maturity (from transplant). Solanum lycoperscium. Organic Fox Cherry Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds, and...
Soybean - Black (Organic) - Sprouting Seeds
2-5 Days to Harvest. Glycine max L. Merr.. Organic Black soybean Sprouting Seeds. Organic. Non-GMO. Sprouting. High Germination. Considered a superfood, Organic black soybean sprouting seeds quickly sprout an antioxidant-rich...
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...
Petunia Seeds - Frost Series (Pelleted)
98-105 Days to maturity. Petunia x hybrida. Frost Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Frost Series seeds grow a delightful, unique, and lively variation of the world-famous...
Pepper Seeds - Sweet - Canary Bell
100 Days to maturity (from transplant). Capsicum annuum. Canary Bell Pepper Seeds. Non-GMO, annual, open-pollinated, high-yielding, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for growing...
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...
Cucumber Seeds - Rhinish Pickle
Non-GMO, open-pollinated Rhinish Pickle Cucumber Seeds from True Leaf Market produce heirloom pickling cucumbers with black spines and small bumps. Growing between 4" and 6" long, Rhinish pickle cucumbers are...
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...
Melon Seeds - Cantaloupe - Honey Rock
80 Days to maturity. Cucumis melo. Honey Rock Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, AAS winner, heat tolerant, Cantaloupe Melon. Suitable for growing in containers, garden plots, raised...
Mustard Seeds - Mizuna Red Streaks
45 days. 20 days for baby leaf. With a mild peppery mustard flavor, this green is great for salads as a baby green or a full-size green. The stalk has...
Squash Seeds - Summer - Scallop Yellow Bush (Organic)
49 days to maturity. Cucurbita pepo. Organic Scallop Yellow Bush Summer Squash Seeds. Non-GMO, annual, heirloom, open-pollinated, organic. This is suitable for growing in fields, containers, garden plots, raised beds,...
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...
Mustard Seeds - Japanese Red Giant
60-80 days. Brassica juncea var. rugosa. Japanese Red Giant Mustard Seeds. Non-GMO. Annual. Exceptionally broad-leafed and textured, Red Giant (Aka taka-na) is a Japanese mustard green specifically grown for its...
Gourd Seeds, Wax - Winter Melon Round
85 to 95 Days to maturity. Benincasa hispida. Round Winter Melon Wax Gourd Seeds. Annual, Open Pollinated, Heirloom, Non-GMO. This melon is very popular in Asia and is quickly gaining...
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...
Corn Seeds - Popcorn - Yellow (Organic)
95-110 Days to maturity. Zea mays. Yellow (organic) Corn Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, Pop Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Pea Seeds - Shelling - Progress No. 9
Non-GMO, Heirloom Progress No. 9 Pea Vegetable Garden Seed is a dwarf variety is an early-to-harvest hardy shelling pea that develops thick 4-5" deep-green pods. Short-vine bush peas such as...
Pepper Seeds - Hot - Super Chili Hybrid
75 Days to maturity (from transplant). Capsicum annuum. Super Chili Hybrid Pepper Seeds. Non-GMO, annual, F1 hybrid, AAS winner, high yielding, deer resistant, heat tolerant, drought tolerant, hot pepper with...
Sunflower Seeds - Chocolate Cherry
85-95 Days to maturity. Helianthus annuus. Non-GMO. Open Pollinated. Annual. Heirloom. Heirloom Chocolate Cherry sunflower seeds mature to be 6 to 7 feet tall ornamentals with deep burgundy petals and...
Radish Seeds - German Giant
A customer favorite, Non- GMO German Giant Radish is reliable and large. Ready in 30 day, this variety is known for its size and can become as large as a...
Pepper Seeds - Sweet - Sweet Cayenne
75 Days to maturity (from transplant). Capsicum annuum. Sweet Cayenne Pepper Seeds. Non-GMO, annual, open-pollinated, sweet pepper with mild heat levels. 0 to 200 Scoville Heat Units. Suitable for growing...
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...
Cucumber Seeds - Boston Pickling (Organic)
55-60 Days to maturity. Cucumis sativus. Organic Boston Pickling Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised...
Seed Potatoes - Spring - Russet (Organic)
This item is a pre-order item and is expected to ship in March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This product...
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