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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Pumpkin Seeds - Jack O Lantern
90-110 days. Jack O Lantern Pumpkin Seeds. Cucurbita pepo. Open Pollinated. Non-GMO. Producing bright orange 10-12 lb pumpkins a piece, Jack O Lantern pumpkins are the ideal seeds for Halloween...
Gourds Seeds - Luffa Sponge
100+ days. 12 to 18 inches fruits are dried and seeded to make durable sponges. Approximately 320 seeds/oz. Luffa Gourd seeds yield green gourds that can be used for making...
Pumpkin Seeds - Big Max
Big Max Pumpkins are known for their size. This is the pumpkin to grow if you want to have an enormous pumpkin. Big Max Pumpkins can weigh over 100 lbs...
Gourds Seeds - Birdhouse
110+ days. Fun, easy to grow plants yield gourds that can be made into attractive hanging birdhouses or dippers. Allow fruit to mature on vine as long as possible. Approximately...
Pumpkin Seeds - Dills Atlantic Giant
120 days. Dill's Atlantic Giant Pumpkin Seeds. Cucurbita maxima. Open Pollinated. Non-GMO. Whether growing a pumpkin worthy of the county fair or looking to create enormous jack-o-lanterns for fall, Dill's...
Pumpkin Seeds - Cinderella (Organic)
This is the pumpkin to grow if you want a fairytale ending. Also called Rouge Vif D"Etampe, this is the pumpkin drawn in Disney's Cinderella. Non- GMO Organic Cinderella Pumpkin...
Pumpkin Seeds - Fairytale
Non-GMO French heirloom pumpkin is a fairytale in the garden. Ready in 125 days, this pumpkin is beautiful and excellent for baking. This is due to its fine grain flesh--...
Pumpkin Seeds - Cinderella
95 to 150 days. Cinderella Pumpkin Seeds. Also known as Rouge vif D'Etampes. Kids love this antique french heirloom pumpkin. Flatter than regular pumpkins and darker of color, this is...
Artichoke Seeds - Imperial Star
150-160 days from sowing. Cynara scolymus. Imperial Star Artichoke Seeds. Non-GMO, perennial. This is suitable for garden plots, raised beds, and fields. UC-bred, nearly spineless plants for first-year harvests—uniform, high-yielding...
Artichoke Seeds - Purple Italian Globe
120 days. Perennial, Non-GMO, Heirloom Seeds. This heirloom Artichoke from Italy produces purple-headed fruits measuring from 3 to 6 inches across. These artichokes are a beautiful purple shade that will...
Pumpkin Seeds - White Queen
90-120 days. Non-GMO. Open-pollinated. White Queen Pumpkin Seeds from True Leaf Market grow ghostly white pumpkins that reach 7" to 10" in diameter. Ornamental white pumpkins like White Queen can...
Pumpkin Seeds - Show Winner
Cucurbita maxima As the name implies, this is the pumpkin to grow if you want to win a novelty contest. The giant pumpkins develop in an array of colors, including...
Pumpkin Seeds - Musquee De Provence
C. moschata (122 days) Musquee De Provence is a French heirloom that was introduced to this country by Vaughan's Seed Store in 1899. One of the most distinct pumpkins you...
Pumpkin Seeds - Wolf
Non-GMO Wolf Pumpkins are ready in 120 Days. Wolf pumpkin produces the most incredible handle you have ever seen. Its 15 to 25 lb. round to oblate-shaped fruit has a...
Gourds Seeds - Dipper Long Handle
110+ days. For carving, burning, painting or just looking at. Blossom end about 4 inches across with neck from 8 to 12 inches long. Usually curved but can be grown...
Gourd Seeds - Crown of Thorns Shenot
110-125 days. Non-GMO. Heirloom. Shenot Crown of Thorns Gourd Seeds from True Leaf Market yield small decorative gourds featuring blunt, horn-like protrusions which make the gourd resemble a crown of...
Pumpkin Seeds - Thumpkin
120 days. A new pumpkin variety characterized by it's flattened or "Long Island Cheese" like shape, but with a dark orange color and an extra thick "handle" or stem. It...
Corn Seeds - Popcorn - Rainbow Jewel
120 Days to maturity. Zea mays ’Rainbow Jewel Popcorn’. Rainbow Jewel Popcorn Corn Seeds. Non-GMO, warm weather hybrid annual. Rainbow Jewel Corn is a hybrid cross between a white popcorn...
Broccoli Seeds - Purple Sprouting (Organic)
40 to 60 days. Annual. Non-GMO seeds. The Broccoli Raab, also known as Rapini, is more closely related to the turnip and mustard than actual broccoli. This annual crop can...
Gourd Seeds - Caveman's Club
Cavemans Club Gourd Seeds. AKA: Maranka Gourds. 120 days. Annual. Heirloom. Non GMO. are dark green and have a rounded base with a long curved neck that gets thin halfway...
Gourd Seeds - Bottle
100-120 Days to maturity. Lagenaria siceraria. Bottle Gourd Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom, bottle gourd. Bottle Gourd is valued for its versatility in cooking, with both the young fruit...
Gourd Seeds - Monster Mix F1
Monster Mix F1 Hybrid Gourd Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 120 days to maturity. Bush plants produce all colors: orange yellow white and green gourds. ~ 850 Seeds...
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...
Shallot Sets - Red
10 Sets This is a pre-order item and is expected to ship in March to April for spring planting. Other seeds, supplies, or kits ordered with this product may ship...
Chinese Leek Seeds - Broad Leaved Nira
100+ days to maturity. Allium tuberosum ‘Broad Leaved Nira’. Broad Leaved Nira Chinese Leek Seeds. Non-GMO, cool-season perennial heirloom. This popular Chinese specialty herb is a vigorous perennial for its...
Competition Pumpkin Seeds - 400 lb plus
115+ Days to maturity. Non-GMO Competition Pumpkin 400 lb. Plus pumpkin seeds from True Leaf Market come from competition pumpkins that weighed 400 lbs. or more. Whether you want to...
Salsify Seeds - Scorzonera Black Root
100-130 days. Scorzonera hispanica. Scorzonera Black Root Salsify Seeds. Non-GMO, perennial root crop, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and market gardens. Black Root salsify...
Shallot Sets - Yellow
10 Sets This is a pre-order item and is expected to ship in March to April for spring planting. Other seeds, supplies, or kits ordered with this product may ship...
Amaranth Seeds - Red Army
Red Army Amaranth Seeds. Non-GMO. Heirloom. Microgreen and Garden Seeds. Amaranthus cruentus. AKA: Blood Amaranth, Princes Feather, or Mexican Grain Amaranth. 100-130 days. Red Army amaranth is a darker and...
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