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.
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10 x 20 Growing Trays WITHOUT Holes
Large 1020 growing trays with NO drain holes. Perfect as a drip tray for trays with holes, or a growing tray for hydroponic applications. Approx 20"x10". Standard nursery plant growing...
10 x10 Growing Trays WITHOUT Drain Holes
10x10 inch growing trays without drain holes (1010). Half the size of our 1020 plant-growing trays / flats. Works well as drip tray, or for growing wheatgrass, microgreens and other...
10 x 20 Clear Humidity Dome
10 inch by 20 inch clear plastic humidity domes. Durable and reusable. Designed to fit perfectly with the 10" x 20" growing trays we offer. Choose Quantity. Click here to...
Self-Watering Growing Trays
Self-watering microgreens grow trays for growing small quantities of microgreens on any counter top or windowsill without the worry of constant monitoring of water supply. Each tray combo consists of...
Self-Watering Growing Trays (Small)
Self-watering microgreens grow trays for growing small quantities of microgreens on any countertop or windowsill without the worry of constant monitoring of water supply. Self-Watering Growing Trays (Small) Each tray...
22 x11 Perma-Nest Planting Trays
These heavy-duty, polystyrene, plant trays measure 22"x11" and have no drain holes. They are perfect drip trays for growing microgreens, wheatgrass or for use as a greenhouse drip tray. Click...
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