Odontoglossums and Miltonias
Warm class orchids are represented by Phalaenopsis, Paphiopedilums, Vandas, Rhynchostylus and Dendrohiums. These plants also require high light, so imagine cool, sunny October mornings as an example of the light and temperature that this class needs. The cool class includes Cymbidiums, Cypripediums, Odontoglossums and Miltonias, and should be grown 5 degrees to 10 degrees F cooler than the medium class. This group will do very well with the air, temperature, and orchid delivery light facilities found in the average home. An occasional deviation will have no harmful effect. The ideal minimum temperature is 60 degrees F nights and high 70s during the days. The medium temperature class is represented by many Cattleyas, Epidendrums, Oncidiums, andLaelias, and most other commercially available orchids.