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7 Vegetable Seeds to Start in December

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Dec 16, 2025, 02:51 PM
green plastic container with black soil
Photo: Unsplash - Verstappen Photography

About This Resource

The post 7 Vegetable Seeds to Start in December is by Sarah Jay and appeared first on Epic Gardening, the best urban gardening, hydroponic gardening, and aquaponic gardening blog. When should your vegetable seeds start. December is a great time for direct seeding in some instances, and sowing indoors in others. Experienced gardener Sarah Jay covers seven seeds you can start in both cases to achieve cool-weather harvests and prepare for spring. The post 7 Vegetable Seeds to Start in December is by Sarah Jay and appeared first on Epic Gardening, the best urban gardening, hydroponic gardening, and aquaponic gardening blog.

Key takeaways

What to know before you act on this, from the SteadScape editors.

  • Start tomato seeds indoors in December, using a heat mat and grow light, for transplanting 4-6 weeks later when soil is 60°F.
  • Pepper seeds should be sown indoors 8-10 weeks before your last frost, then transplant 2-4 weeks after frost for best results.
  • Leeks can be started indoors in December, transplanting them when soil reaches 40°F, ideally 60°F, for a spring harvest.
  • Celery seeds should be sown 10-12 weeks before the last frost, ensuring soil temperature is at least 50°F for transplanting.
  • Consider building or purchasing a greenhouse to extend your growing season and protect your seedlings from harsh winter conditions.
Best for
Beginners planning a spring garden; start seed indoors in December for cool-weather crops.
Pairs with
Garden Planner for your zone and frost dates.

Source Information

Domain: epicgardening.com

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