What growing temperature do orchids need?

（1）OrchidsTemperature for seed germination: 21-25°C during the day, 15-18°C at night. Except in special cases, this applies to allorchidsalmost universally. (2) TropicalorchidsTemperature required by seedlings: 23-30°C during the day, 18-21°C at night. (3) Temperature required by mature epiphytic orchids: 23-27°C during the day, 18-21°C at night. (4) Temperature required by mature terrestrial orchids: 20-25°C during the day, 3-5°C lower at night. The above temperatures are the most suitable for orchid growth. During the winter dormancy period, the temperature can be lowered. For example,Cymbidium goeringiiandCymbidium faberican tolerate a minimum night temperature of 5-6°C in winter, and it does not matter if it drops to 0 or minus 2-3°C. (Song Shi)