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Grow QuestionsWhat is the lowest temperature that is safe for the plant "at night" (according to the schedule of daylight hours)? Effects?

What is the lowest temperature that is safe for the plant "at night" (according to the schedule of daylight hours)? Effects?

TrollShamanstarted grow question 4 years ago

My growbox is on the balcony, at night air temperature drops to 15 ° С. - what is the lowest temperature that is safe for the plant "at night" (according to the schedule of daylight hours)? - what is the lowest temperature that is safe for the plant "during the day"? Effects?

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Plant. Other

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GMSgrowsanswered grow question 4 years ago

Basically a 10° drop when lights out is fine. Plants can go down to near zero without hurting the plants but it slows it's metabolizem and the plant slows in growth, takes a day to recover before she picks up her pace again. So 10° difference from lights out keeps them vigorously growing/flowering. Cheers

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MangoDuduanswered grow question 4 years ago

A 10c drop is safe in flowering, in growth stage better 5 , 7c at max

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MangoDuduanswered grow question 4 years ago

Use lights in the night so you can fight the low temps The safety depends on the stage of the plants, in flowering with 15c you can grow, in grow plants will start to have problem especially the smaller ones

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