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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
140 Items
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Garden Cover Crop Seed Mix - All-Purpose, Pre-InoculatedGarden Cover Crop Seed Mix - All-Purpose, Pre-Inoculated
-0
Heirloom
Staff Favorite
Garden Cover Crop Seed Mix - All-Purpose, Pre-Inoculated
Starting at $5.11
Lettuce Seeds - Mixed Greens - Gourmet MixtureLettuce Seeds - Mixed Greens - Gourmet Mixture
-0
Heirloom
Lettuce Seeds - Mixed Greens - Gourmet Mixture
Starting at $2.99
Lettuce Seeds - Mixed Greens - Mesclun MixLettuce Seeds - Mixed Greens - Mesclun Mix
-0
Heirloom
Lettuce Seeds - Mixed Greens - Mesclun Mix
Starting at $2.99
Nasturtium Seeds - Jewel MixNasturtium Seeds - Jewel Mix
-0
Staff Favorite
Nasturtium Seeds - Jewel Mix
Starting at $2.99
Zinnia Seeds - California Giant MixZinnia Seeds - California Giant Mix
-0
Zinnia Seeds - California Giant Mix
Starting at $2.99
Lettuce Seeds - Gourmet Mix (Organic)Lettuce Seeds - Gourmet Mix (Organic)
-0
Heirloom
Organic
Lettuce Seeds - Gourmet Mix (Organic)
Starting at $3.59
Calendula Seeds - Pacific Beauty MixtureCalendula Seeds - Pacific Beauty Mixture
-0
Calendula Seeds - Pacific Beauty Mixture
Starting at $2.99
Pepper Seeds - Sweet - Sunset Italian Mix (Organic)small size packet type seed packaging for - Pepper Sweet Sunset Italian Mix Organic
-0
Heirloom
Organic
Pepper Seeds - Sweet - Sunset Italian Mix (Organic)
Starting at $4.19
Wildflower Seeds - Bee MixWildflower Seeds - Bee Mix
-0
Wildflower Seeds - Bee Mix
Starting at $2.99
Tomato Seeds - Cherry - Rainbow Cherry Mix (Organic)mid size pouch type seed packaging for - Tomato Slicing Yellow Perfection Organic
-0
Heirloom
Organic
Tomato Seeds - Cherry - Rainbow Cherry Mix (Organic)
Starting at $3.59
No-Till Forage Friendly Cover Crop MixNo-Till Forage Friendly Cover Crop Mix
-0
No-Till Forage Friendly Cover Crop Mix
Starting at $5.13
Swiss Chard Seeds - Bright Lightsmid size pouch type seed packaging for - Swiss Chard Bright Lights
-0
AAS Winner
Heirloom
Swiss Chard Seeds - Bright Lights
Starting at $3.49
French Marigold Seeds - Petite Mixturemid size pouch type seed packaging for - French Marigold Petite Mixture
-0
French Marigold Seeds - Petite Mixture
Starting at $2.99
Zinnia Seeds - Lilliput MixtureZinnia Seeds - Lilliput Mixture
-0
Zinnia Seeds - Lilliput Mixture
Starting at $2.99
Mixed Greens Seeds - Mesclun Mix - Organicsmall size packet type seed packaging for - Mixed Greens Mesclun Mix Organic
-0
Heirloom
Organic
Mixed Greens Seeds - Mesclun Mix - Organic
Starting at $3.59
Flower Mix - Zinnia Special CollectionFlower Mix - Zinnia Special Collection
-0
Staff Favorite
Flower Mix - Zinnia Special Collection
Starting at $6.00
Larkspur Seeds - Giant Imperial Mixturemid size pouch type seed packaging for - Larkspur Giant Imperial Mixture
-0
Larkspur Seeds - Giant Imperial Mixture
Starting at $2.99
Cosmos Seeds - Sensation Mixturesmall size packet type seed packaging for - Cosmos Sensation Mixture
-0
AAS Winner
Cosmos Seeds - Sensation Mixture
Starting at $2.99
Snapdragon Seeds - Liberty Classic Series Mixmid size pouch type seed packaging for - Snapdragon Liberty Classic Series Mix
-0
Snapdragon Seeds - Liberty Classic Series Mix
Starting at $3.39
Mustard - Farmer's Favorite Cover Crop Mixmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-0
Mustard - Farmer's Favorite Cover Crop Mix
Starting at $5.69
Wildflower Seeds - Low Growing MixWildflower Seeds - Low Growing Mix
-0
Wildflower Seeds - Low Growing Mix
Starting at $3.09
Bachelors Buttons Seeds - Mixed Colorsmid size pouch type seed packaging for - Bachelors Buttons Mixed Colors
-0
Bachelors Buttons Seeds - Mixed Colors
Starting at $2.99
Cosmos Seeds - Bright Lightsmid size pouch type seed packaging for - Cosmos Bright Lights
-0
Cosmos Seeds - Bright Lights
Starting at $2.99
Swiss Chard Seeds - Rainbow Mixture
Starting at $3.89
French Marigold Seeds - Sparky Mixture
Starting at $2.99
Swiss Chard Seeds - Rainbow Mixture (Organic)
Starting at $3.69
Sunflower Seeds - All Sorts Mixture
Starting at $2.99
Zinnia Seeds - Dahlia Flowered Mixture
Starting at $2.99
African Marigold Seeds - Cracker Jack
Starting at $2.99
Sunflower Seeds - Autumn Beauty Mix
Starting at $2.99
Portulaca Seeds - Double Mix
Starting at $2.99
Lettuce Seeds - Heatwave Mix
Starting at $2.99
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