Plants should be grown in an east, south, or west window, but should be protected from direct midday sun. When growing orchids under artificial lights, it is important to provide light only as long as the natural day length. Extending day length may prevent blooming. Orchids are classified by the temperatures they prefer. Most of the remaining varieties require intermediate temperatures of 60-75 degrees.
Humidity is very important to orchid plants.
A gravel tray containing water can be placed under the plants to increase humidity levels around the plants. Make sure the bottoms of the pots are above the level of the water. Daily misting is also helpful. Orchids generally prefer to dry out well between waterings. If the roots are kept wet for more than a few days they may rot.