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]()
Radish Seeds - Amethyst
Amethyst Radish Seeds. 30 - 39 days to maturity. Raphanus sativus. Heirloom, Annual. Amethyst is a bunching radish that produces small fruits with a stunning violet color. Approximately 6,800 seeds/ounce....
Grape Hyacinth Bulbs - Muscari Armeniacum
20 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Lettuce Seeds - Leaf - Sunset
Sunset Leaf Lettuce Seeds. 60 days to maturity. Lactuca sativa. Heirloom. Annual. Super deep beautiful red! Approximately 25,000 seeds/ounce. Lettuce Seeds - Leaf - Sunset A great variety for home...
Pepper Seeds - Hot - Cuban Chile
80-90 Days to maturity (from transplant). Capsicum annuum. Cuban Chile Hot Pepper Seeds. Non-GMO, annual, open-pollinated, hot, ornamental pepper with hot heat levels. 30,000-40,000 Scoville Heat Units. Suitable for growing...
Anemone Bulbs - Carmel White
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Corn Seeds - Popcorn - Calico
100-105 Days to maturity. Zea mays. Calico Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, popcorn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions. Annual...
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...
Anemone Bulbs - Carmel Bordeaux
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Tomato Seeds - Slicing - Early Choice Black F1
65-70 Days to maturity (from transplant). Solanum lycopersicum. Early Choice Black Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, indeterminate, salad tomato seeds. Suitable for growing in garden plots,...
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...
Anemone Bulbs - Galilee Pastel Mix
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Wildflower Seeds - Backyard Bird Lover's Mix
60-90 Days to maturity. Backyard Bird Lover’s Wildflower Mix Flower Seeds. Non-GMO, open-pollinated. A mix of annuals, perennials, and biennials for zones 3, 4, 5, 6, 7, 8, and 9....
Bean Seeds - Bush - Red Swan
55-60 Days to maturity. Phaseolus vulgaris. Red Swan Bean Seeds. Non-GMO, annual, open-pollinated, bush, snap, specialty bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. The Red...
Tulip Bulbs - Fringed - Mix
10 Bulb Bag This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Tulip Bulbs - Parrot - Mix
10 Bulb Bag This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Tulip Bulbs - Triumph - Mix
10 Bulb Bag This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Tulip Bulbs - Darwin Hybrid - Purple Pride
10 Bulb Bag This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Seed Starter Kit - Petunia
Kickstart your garden with the Easy Wave Flag Mix Petunia Seed Starting Kit, designed to give you everything you need for a vibrant display of red, white, and purple-blue blooms....
Radish - Red Rat's Tail - Microgreen Seeds
8-10 Days to harvest. Raphanus sativus. Red Rat’s Tail Radish Microgreen Seeds. These delicious radish microgreens have a mild spicy flavor and an attractive appearance. The cotyledon leaves are green...
Bloom Master Hanging Basket Kit - Petunia
Grow a stunning display of vibrant red, white, and purple-blue petunias with the Easy Wave Flag Mix Petunia Hanging Basket Kit. Perfect for both beginner and seasoned gardeners, this all-in-one...
Tomatillo Seeds - Really Purple
Really Purple Tomatillo Seeds. Physalis ixocarpa. 85 - 95 days to maturity. Indeterminate. Open Pollinated. Annual. These plum-colored beauties were bred specifically by Seeds by Design. Approximately 7,500 seeds per...
Calla Lily Bulbs - Mixture
5 Bulb Bag This is a pre-order item and is expected to ship from March to April. Other seeds, supplies, or kits ordered with this product will ship separately. This...
Grape Roots - Seedless - Concord
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. Can...
Blackberry Roots - Chester
1 Root This 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...
Elderberry Roots
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This...
Boysenberry Roots
1 Root This 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...
Iresine Seeds - Purple Lady
77-84 Days to maturity. Iresine herbstii. Purple Lady Iresine Seeds. Non-GMO, Annual or Perennial. Purple Lady Iresine seeds are tidy yet exotic plants, ideal for many hot and humid gardens...
Pepper Seeds - Hot - Jalapeno Purples
75 Days to maturity (from transplant). Capsicum annuum. Jalapeno Purples Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high yielding, deer resistant, heat tolerant, drought tolerant, hot-type pepper with medium heat levels....
Artichoke Seeds - Purple Romagna - Clearance Seeds
50% Germination - Non-refundable clearance seeds. 100 + Days to maturity - Perennial, Zones 8-11 Purple Romagna Artichoke Seeds. Tender, oblong-shaped buds develop with variations in green and purple coloring...
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