Temperatur... how?

Each type of orchid requires a minimum temperature limit and the corresponding maximum in order to grow well.
Based on the appropriate temperature, orchids are divided into 3 types:
• Orchid cold temperatures (mountains, altitude 2000-4000m): grows well at a temperature of 15-21 ° C during the day and 10-13 ° C at night.
Example: Cymbidium, Masdevallia, Miltonia, Odontoglossum, Oncidium, Paphiopedilum
• Orchid temperature was (plateau, 750-2000m): grows well at a temperature of 21-32 ° C during the day and 10-18 ° C at night.
Example: Brassavola, Cattleya, Dendrobium, Epidendrum, Laelia, Paphiopedilum (molted leaves), Phalaenopsis.
• Orchid temperatures (lowland, 0-750m): grows well at a temperature of 26-35 ° C during the day and 18-24 ° C at night.
Example: Several types of Phalaenopsis, Vanda and Dendrobium.
Temperature limits for each genus above is based on the genus in general, some species have different tolerances.
Hybrids produced from crossing orchids of different types of temperatures will have greater tolerance for differences in temperature.
As an illustration to see the type of orchid can be seen on the temperature of the leaves. Cold type of orchid leaves are usually thin, whereas the thick-leafed type of heat. Of course there must be an exception. There are some orchids which do not heat the thick leaves, and vice versa.
To form the flower, the plant produces energy in the form of carbohydrates during the day when the high temperature and store it at night when temperatures fall.
Generally most orchids require the temperature difference of about 4-6 ° C between day and night for the formation of flowers. There are some differences in the genus that require a higher temperature (8-10 ° C).
Orchid consists of various kinds (genus) and the above information is to orchids in general