Cold Winter Areas
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 warms.
Indoors (fresh harvests):
- Microgreens: peas, broccoli, sunflowers, arugula.
- Sprouts: alfalfa, broccoli, radish, mung
- Herbs & greens under lights: chives, parsley, mint
Crops to start indoors in good light: bunching onion, eggplant, tomato, pepper, zinnia, basil, Swiss chard, cosmos
Transplants to move outdoors (weather permitting - harden first): Onion, parsley, broccoli, cabbage, kohlrabi, arugula, pansy, viola
Crops that can be directly sown outdoors in March (assume intermittent frosts; a low tunnel or row cover makes most of these reliable): pak choi, cabbage, kale, mustard, fava bean, pea, turnip, parsnip, sweet pea
Cover crops: winter rye, fava bean, hairy vetch, red or white clover, and cover crop mixes.
Tip: This zone group covers a lot of territory. Nothing takes the place of talking with experienced gardeners in your area and, of course, watching the weather closely.
Use your USDA zone as a guide. Microclimates matter—coastal/urban spots run warmer; high elevation runs colder. 7b pockets can follow “Mild” recommendations with protection.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Pepper Seeds - Ornamental - Chilly Chili
Chilly Chili Peppers is a non-spicy ornamental beautiful It is truly chilly! These are a great variety for families with children. Peppers are eye-catching in the garden, but they are...
Lettuce Seeds - Red Salad Bowl - Organic
Lactuca sativa (33 days) Introduced in the early 1950s. Red salad bowl is deeply lobed, burgundy red, and delicious. The cooler the weather, the more intese the burgundy color becomes....
Heliopsis Seeds - Summer Sun
84-91 Days to maturity. Heliopsis scabra. Heliopsis Summer Sun Seeds. Non-GMO, Perennial. Heliopsis Summer Sun stands out as an easy-care perennial, brightening gardens with abundant, semi-double golden blooms from midsummer...
Pak Choi Seeds - Red Choi - Hybrid
45 Days to full maturity. 20-30 Days for baby leaf. 10-15 Days for microgreens. Brassica rapa Chinensis group. Red Choi Pak Choi Seeds. Annual, Hybrid. Cool Season. This special hybrid...
Pumpkin Seeds - Spookie
Non-GMO, heirloom Spookie Pumpkin Seeds from True Leaf Market produce fruit weighing between 6 and 10 lbs. that has smooth orange skin and subtle ribbing. Each pumpkin measures approximately 6"...
Mustard Seeds - Small Gai Choi
35 to 45 Days to maturity. Brassica juncea var. capitata. Small Gai Choi Mustard Seeds. Heirloom. Cool season annual. This heirloom Chinese mustard green is very vigorous and productive. It...
Lettuce Seeds - Heirloom Garden Mixes
Heirloom Garden Mixes Lettuce Seeds. 60 days to full maturity. 30 days to maturity for baby leaves. Lactuca sativa. Heirloom. Annual. An excellent and well-round custom mix of lettuce. Approximately...
Melon Seeds - Valencia Early
90 Days to maturity. Cucumis melo. Valencia Early Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Known for...
Pepper Seeds - Sweet - Diamond
75 Days to maturity (from transplant). Capsicum annuum. Diamond Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for growing in garden plots,...
Salvia Seeds - Evolution Violet
98-112 Days to maturity. Salvia splendens. Salvia Evolution Violet Seeds. Non-GMO, perennial or annual. Ornamental. Evolution Violet seeds promise vibrant, hardy, and AAS award-winning salvia plants to excite your home...
Pumpkin Seeds - Gooligan F1
Gooligan F1 Hybrid Pumpkin Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 95 days to maturity. Gooligan F1 is a hybrid white Baby Boo type. The quarter pound fruit are slightly...
Mimosa Seeds - Sensitive Plant
70-80 days. Mimosa pudica. Sensitive Plant Mimosa Seeds. Non-GMO, Annual (tender perennial). Sensitive Plant mimosas guarantee one of the most interactive, playful, and entertaining blooms you'll ever grow. Sensitive Plant...
Dusty Miller Seeds - Silverdust
84-91 Days to maturity. Senecio cineraria. Dusty Miller Silverdust Seeds. Non-GMO, Annual. Silverdust Dusty Miller seeds offer a quaint and unique addition perfect for many gardens prone to heat and...
Tomato Seeds - Slicing - Flame
85 Days to maturity (from transplant). Solanum lycopersicum. Flame Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Tomato Seeds - Slicing - Abe Lincoln
87 Days to maturity (from transplant). Solanum lycoperscium. Abe Lincoln Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Abraham...
Melon Seeds - Cantaloupe - Hales Best 45 PMR
68-90 Days to maturity. Cucumis melo. Hale’s Best 45 PMR Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, drought-tolerant Cantaloupe Melon. Suitable for growing in containers, garden plots, raised...
Squash Seeds - Winter - Cushaw Orange
95-105 days. Cushaw Orange Winter Squash Seeds. Cucurbita argyrosperma. Annual. Non-GMO. Popularly known throughout the world as "Japanese pie pumpkin" and "cushaw pumpkin", the cushaw squash seed is native to...
Pepper Seeds - Hot - Cayenne Golden
80-89 Days to maturity (from transplant). Capsicum annuum. Cayenne Golden Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, hot pepper with hot heat levels. 30,000 to 50,000 Scoville Heat Units....
Rudbeckia Seeds - Indian Summer (Coated)
84-105 days maturity. Rudbeckia hirta. Rudbeckia Indian Summer Seeds. Non-GMO, Perennial. Ornamental. Indian Summer rudbeckia seeds grow a seasonal spin to one of our country's most timeless, familiar, and award-winning...
Tomato Seeds - Cherry - Grapette Hybrid
75 Days to maturity (from transplant). Solanum lycoperscium. Grapette Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, semi-determinate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Bean Seeds - Bush - Dragons Tongue Wax
60 Days to maturity. Phaseolus vulgaris. Dragon Tongue Bean Seeds. Non-GMO, annual, open-pollinated, bush, snap, wax, romano, bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. This...
Pepper Seeds - Sweet - Cascadura
70-85 Days to maturity (from transplant). Capsicum annuum. Cascadura Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for growing in garden plots,...
Watermelon Seeds - Picnic - Shiny Boy Hybrid (treated)
90 Days to maturity. Citrullus lanatus. Treated Shiny Boy Hybrid Watermelon Seeds. Non-GMO, annual, hybrid, heat-tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. 2010 Vegetable AAS Winner. Known...
Bean Seeds - Bush - Royal Burgundy (Organic)
50-65 Days to maturity. Phaseolus vulgaris. Organic Royal Burgundy Bush Bean Seeds. Non-GMO, annual, open-pollinated, organic, heirloom, high-yielding, bush, snap bean. Suitable for growing in containers, garden plots, raised beds,...
Pepper Seeds - Hot - Sweet Heat
50-59 Days to maturity (from transplant). Capsicum annuum. Sweet Heat Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, hot-type pepper with mild heat levels. 100 to 500 Scoville Heat Units. Suitable for...
Tomato Seeds - Slicing - Old German
75 Days to maturity (from transplant). Solanum lycopersicum. Old German Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Squash Seeds - Vermicelli F1
cucurbita pepo (90 days) Despite it's resemblance to the Italian pasta, Spaghetti squash originally originated in Japan. This squash gets its name from the pasta-like strands that come out of...
Bean Seeds - Pole - Kurosanjaku Yard Long
70-90 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Kurosanjaku Yard Long Bean Seeds. Non-GMO, annual, open-pollinated, heat-tolerant, heirloom, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden plots,...
Coffee Seeds - Coffea Arabica Nana
About 3-4 years to harvest. Coffea arabica 'Nana'. Nana Arabian Coffee Seeds. Non-GMO, perennial, open-pollinated, tropical, dwarf coffee tree. Nana Arabian Coffee tree seeds grow dwarf coffee plants that will...
Pepper Seeds - Hot - Mulato Isleno
70-79 Days to maturity (from transplant). Capsicum annuum. Mulato Isleno Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, heat tolerant, drought tolerant, hot-type pepper with mild heat levels. 1,000 to...
Squash Seeds - Winter - Lakota (Organic)
80-120 Days to maturity. Cucurbita maxima . Organic Lakota Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery...
Seed Potatoes - Purple Viking (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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