Grow Kale in Cool Temperatures Indoors

Want to grow kale indoors? Then you'll need to keep it cool! Kale prefers cool conditions, and is normally grown outdoors during the cool season, or in winter in hot climates. Plants will bolt once temperatures reach about 80°F (26°C).

Grow kale indoors in a space that stays consistently cool, such as a basement or a garage. You will need to cool air inside a sealed grow tent, especially if you are using HID grow lamps that generate greater amounts of light and heat. Try growing kale with LEDs, HOT5 Fluorescents, and CFLs to reduce heat.

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