Spinach Grows Best in Cool Temperatures

August 9, 2018

Want to grow spinach indoors? If you have a cool garage or basement, you might have the perfect place to grow spinach indoors through the cool months. If you use a grow tent with a cooling system, you might be able to grow it indoors year-round. Stick with cooler running grow lamps, such as LEDs, CFLs, or HOT5 Fluorescents, instead of HID lamps.

PC: Leslie F. Halleck

Spinach grows best in cool temperatures between 40°F and 75°F (4–24°C). Warmer temperatures can hasten bolting. If your indoor temperatures are a bit warmer, keep the photoperiod (how long you light the plants) on the short side (10 hours).

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