The temperature required for orchids

(1) the temperature of orchid seed germination is 21 ℃ 25 ℃ during the day and 15 ℃ at night. It applies to almost all orchids except in special cases.

(2) the temperature required for tropical orchid seedlings is 23 ℃ 30 ℃ during the day and 18 ℃ at night.

(3) the temperature required for the growth of epiphytic orchid plants is 23 ℃ 27 ℃ in daytime and 18 ℃ in the evening.

(4) the temperature needed for the growth of ground orchid is 20 ℃ 25 ℃ during the day and 5 ℃ lower at night.

The above temperature is the most suitable for the growth of orchids. During the dormant period of orchids in winter, the temperature can be lowered. For example, the lowest temperature of Cymbidium and Cymbidium is 5 ℃ 6 ℃ in winter night, and it doesn't hurt to drop to 0 or minus 2 Mel 3 min. (song Shi)