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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Mustard Seeds - Red Capital
40-50 Days to maturity. Brassica juncea. Red Capital Mustard Seeds. Hybrid, Non-GMO. Annual. This little-known variety is a fast-growing, tasty mustard. Both the full-sized and baby greens are recognizable by...
Leaf Radish Seeds - Saisai Purple - Hybrid
30 to 40 Days to maturity. Raphanus sativus. Saisai Purple Leaf Radish Seeds. Annual, Hybrid. This red-stemmed leaf radish will stand out in any dish you make with it! Saisai...
Gourd Seeds - Caveman Club - Organic
Organic Caveman's Club Gourd Seeds. 130 days to maturity. Lagenaria siceraria. Heirloom, Non-GMO, Annual. Dark green 10-16 in. long 7-14 lb shiny fruit hard shell has knobby protrusions. Approx. 840...
Radish Seeds - Red Rat's Tail
50 Days to maturity. Raphanus sativus. Red Rat’s Tail Radish Seeds. Non-GMO, annual, open-pollinated, heirloom radish. This Asian aerial radish is grown for its 3-6 inch long, red and green...
Gourd Seeds - Bottle - Organic
Organic Bottle Gourd Seeds. 120 days to maturity. Lagenaria siceraria. Open Pollinated, Non-GMO, Annual. Approx. 188 Seeds/oz. Download Free Vegetable Growing Guide PDF Gourd Seeds - Bottle - Organic Download...
Turnip Seeds - Nozawana - Microgreens Seeds
5-7 Days. The Green Nozawana Japanese Turnip is a quick-to-harvest easy microgreen as it is ready in just 5-7 days. Its upright, broad pastoral green leaves are filled with tangy...
Radish Seeds - Nerima - Microgreens
5-8 Days. Nerima Radish is an easy microgreen to grow in your own kitchen. It delivers a full grown radish flavor in a small package. Add these vibrantly green stemmed,...
Turnip Seeds - Sugukina - Microgreens Seeds
5-7 Days. Sugukina Japanese Turnip microgreens are absolutely delightful with a nutty flavor and soft notes of the classic brassica bitter taste. Its leaves are a beautiful sage color that...
Turnip Seeds - Tennouji Kabura - Microgreens Seeds
5-7 Days. Tennouji Kabura Japanese Turnip upright, broadleaf microgreens produce viridescent and slight notes of yellow making for an absolutely beautiful harvest. Add these delicate greens to your favorite foods...
Mustard Seeds - Golden Streak - Microgreens Seeds
4-6 days. Golden Streak Mustard greens microgreens are a vibrant and flavorful brassica to grow on your kitchen counter-top with little mess and effort. Golden mustard microgreens offer a cabbage-like...
Bean Seeds - Pole - Akahana Mame
80-95 Days to maturity. Phaseolus coccineus. Akahana Mame Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, pole, shell, Asian bean. Suitable for growing in garden plots, raised beds, and greenhouses. This "flower...
The Ugly Vegetables - Book & Seed Assortment
Learn more about growing Chinese vegetables in your garden. This delightful and educational collection includes The Ugly Vegetables book by Grace Lin and all seven seed varieties needed to grow...
Mustard Seeds - Cho Kara
5 days for microgreens. 45 days to maturity.Brassica juncea. Cho Kara Mustard Seeds. Non-GMO, cool-season, year-round annual, heirloom. This mustard variety is bred especially for microgreen production and has a...
Melon Seeds - Oshiro Uri Numane - Clearance Seeds
72% Germination - Non-refundable clearance seeds. 70 Days to maturity. Oshiro Uri Numane Pickling Melon Seeds. The Numane melon is a delicious traditional Japanese pickling melon. It grows as a...
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