If you live in the cold frost-prone zones of 1, 2, 3, 4, 5, 6, and 7a, these seeds are for you! While December is typically filled with freezing temperatures and the occasional blanket of snow, you can still plant these recommended seeds indoors for both quick harvesting and a head start on the approaching garden season.

Outdoors: too cold for tender annual veg/flowers. If the soil is workable with a season-extending cover, plant garlic and shallots; otherwise, mulch beds for spring.

Dormant Sowing: This is the technique of broadcasting when the soil is cold below 50F, but not frozen. Gently press the seeds into the soil for good contact. Then water. The seed overwinters and sprouts naturally in the spring. We recommend dormant sowing wildflower mixes, poppies, larkspur, bachelor's buttons, calendula, rudbeckia, and columbine.

Indoors (For fresh harvesting)

Microgreens: sunflower, pea, radish, spicy brassica blends—cut in 7–14 days.

Sprouts: alfalfa, mung, clover, broccoli—ready in 3–7 days.

Herbs & greens under lights: cut-and-come-again lettuce, baby kale, arugula, basil (warm room).

Houseplants from seed (fun winter projects): coleus, polka dot plant - if you are feeling courageous, consider begonias or impatiens.

Starts to plant soon: perennial herbs; plan seed-starting calendars for onions (January), early brassicas (late winter), and warm crops (early spring).

Tip: Prioritize sanitation, airflow, and fresh seed-starting mix for indoor setups; run lights 14–16 hours/day for compact growth.

50 100 true //store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites
574 Items
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chrysanthemum-greens-seeds-garland-serrated-leafPremium Bulk Seeds - Mylar Package
-0
Heirloom
Chrysanthemum Greens Seeds - Garland Serrated Leaf
Starting at $3.99
sunflower-seeds-zohar-f1-organicNon-GMO Organic F1 Zohar Sunflower Seeds Bulk Bag
-0
Organic
Sunflower Seeds - Zohar (Organic)
Starting at $5.59
gaillardia-mesa-yellow-flower-seedsNon GMO Gaillardia Flower Seeds
-0
AAS Winner
Gaillardia Seeds - Mesa Yellow
Starting at $4.69
Hollyhock Queeny Purple SeedHollyhock Mix Seeds - GMO Free
-0
AAS Winner
Hollyhock Seeds - Queeny Purple
Starting at $3.59
national-wildflower-collection-6-wildflower-mixes-for-pollinatorsNational Wildflower Collection - 6 Wildflower Mixes for Pollinators
-0
Staff Favorite
National Wildflower Collection - 6 Wildflower Mixes for Pollinators
$48.10
celosia-forest-fireNon GMO Celosia Flower Seed
-0
Celosia Seeds - Plumed - Forest Fire
Starting at $2.79
brachycome-splendor-mix-flower-seedsBrachycome Splendor Mix Seeds - Non GMO
-0
Brachycome Seeds - Splendor Mix
Starting at $2.79
china-aster-seeds-single-rainbow-mixTrue Leaf Market Flower Seed Packaging
-0
Heirloom
China Aster Seeds - Single Rainbow Mix
Starting at $2.79
Herb Borage Organic Microgreenssustainable seed company packaging
-0
Organic
Borage Seeds (Organic) - Microgreens Seeds
Starting at $4.64
alternanthera-purple-knight-flower-seedAlternanthera Seeds - Ornamental, Decorative Foliage
-0
Alternanthera - Purple Knight
Starting at $4.59
Dimorphotheca Mixed Colors SeedDimorphotheca Flower Seeds - Non GMO
-0
Heirloom
Dimorphotheca Seeds - Mixed Colors
Starting at $2.79
corn-poppy-special-collection-american-legionCorn Poppy Special Collection - American Legion
-0
Heirloom
Corn Poppy Special Collection - American Legion
$10.36
coreopsis-sunfire-flower-seedsNon GMO Coreopsis Flowering Seed
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Coreopsis Seeds - Sunfire
Starting at $3.49
Shades of Red and Purple Seed Assortment collageShades of red and purple assortment - Zahara Zinnia - Daddy Series Petunia - Maverick Series Geranium - Goldfinger Tithonia - Royal Carpet Alyssum - Flanders Corn Poppy
-0
Flower Seeds Collection - Shades of Red & Purple
$15.63
dichondra-emerald-falls-flower-seedsDichondra Plant Seeds - Non GMO
-0
Dichondra Seeds - Emerald Falls (Multi-Seed Pelleted)
$20.59
lunaria-money-plant-flower-seedsMoney Pod Lunaria Seeds
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Lunaria Seeds - Money Plant
Starting at $2.79
Zinnia Seeds - Cut and Come Again (Organic)
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Heirloom
Organic
Zinnia Seeds - Cut and Come Again (Organic)
Starting at $2.99
chefs-speciality-edible-flower-garden
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Chef's Specialty Seed Assortment - Edible Flower Garden
$22.93
coreopsis-early-sunrise-flower-seedsFlower Seeds - GMO Free - Coreopsis
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AAS Winner
Coreopsis Seeds - Early Sunrise
Starting at $4.09
sunflower-seeds-evening-sunSunflower Seeds - Evening Sun Seed Packet
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Heirloom
Sunflower Seeds - Evening Sun
Starting at $2.79
Sundial Lupinesundial lupine seed packet
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Lupine Seeds - Sundial
Starting at $2.79
columbine-seeds-double-mixedTrue Leaf Market Flower Seed Packaging
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Columbine Seeds - Double Mixed
Starting at $2.79
sedum-voodoo-flower-seedsGMO Free Sedum Plant Seeds
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Sedum Seeds - Voodoo (Pelleted)
Starting at $3.39
tobacco-seeds-sylvestris-tobacco-seedsSylvestris Tobacco - Seed Packet
-0
Heirloom
Nicotiana Seeds (Ornamental Tobacco) - Sylvestris
$3.39
Cosmos Seeds - Sensation Mix (Organic) - Clearance Seeds
-41%
Organic
Cosmos Seeds - Sensation Mix (Organic) - Clearance Seeds
Starting at $4.20
sunflower-seeds-early-black-heart-f1Non-GMO F1 Black Heart Early Sunflower Seeds Bulk Seed Bag
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Sunflower Seeds - Early Black Heart
Starting at $3.69
dracaena-indivisa-flower-seedsNon-GMO Dracaena Seeds - Indivisa
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Dracaena Seeds - Indivisa
$11.51
Zinnia Seeds - Crystal Series
Starting at $3.19
Alyssum Seeds - Snow Crystals (Pel or MSP)
Starting at $6.59
Zinnia Seeds - Cactus Flowered Mix
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Tulip Bulbs - Darwin Hybrid - Mixed
$17.99
Cumin Seeds - Black
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