Indoor Sowing in Colorado

In Colorado, February is still too early to start most warm-season crops indoors due to the lingering cold temperatures and short days. However, you can start sowing seeds indoors for cool-season vegetables and herbs that can tolerate cooler conditions and will be ready to transplant outdoors once the weather warms up. Here are some options for what to sow indoors in Colorado in February:

  1. Brassicas: Start seeds for brassica crops such as cabbage, cauliflower, broccoli, and Brussels sprouts indoors in February. These plants can withstand cooler temperatures and will benefit from an early start indoors before transplanting outdoors in early spring.

  2. Lettuce: Sow seeds for lettuce varieties indoors in February for early spring harvests. Lettuce is a cool-season crop that can tolerate some frost, making it suitable for planting outdoors as soon as the soil can be worked.

  3. Spinach: Start spinach seeds indoors in February to get a jump start on the growing season. Spinach is a cold-hardy vegetable that can be harvested early in the spring before temperatures rise.

  4. Kale: Kale is another cold-tolerant vegetable that can be started from seeds indoors in February. Transplant seedlings outdoors once the danger of frost has passed for a spring harvest.

  5. Swiss chard: Sow seeds for Swiss chard indoors in February for transplanting outdoors in early spring. Swiss chard is a versatile leafy green that can be harvested throughout the growing season.

  6. Herbs: Start seeds for hardy herbs such as parsley, cilantro, and chives indoors in February. These herbs can be grown indoors or transplanted outdoors once the weather warms up.

  7. Onions: Begin onion seeds indoors in February for transplanting outdoors in early spring. Onions require a long growing season, so starting them indoors early will give them a head start on growth.

  8. Peas: Peas can be started indoors in February for transplanting outdoors once the soil temperature warms up. Peas are a cool-season crop that prefers cooler temperatures for germination and growth.

Remember to provide adequate light, warmth, and moisture for your indoor seedlings to ensure healthy growth. Additionally, check the specific planting guidelines and recommended planting dates for your area in Colorado to determine the best timing for starting seeds indoors.

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