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What is the ideal grow room temperature?

Plants such as tomatoes do well between 68˚ – 75˚ F, or 20 – 22˚ C. Other plants, like lettuces, prefer cooler temperatures ranging between 60 – 65˚ F. Orchids and succulents like temperatures of 80˚ F or higher. When temperatures are higher than this, you may experience more pest problems, reduced dissolved oxygen available in the plant root zone, media dry-out, and increased water consumption which can cause a toxic concentration of nutrients. Cooler than recommended temperatures may prohibit growth.

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