Aerangis orchids are found naturally in Africa and Madagascar. They are an epiphytic plant that grows on trees and shrubs. It is often found on coffee trees. The name Aerangis comes from the Greek words air what does air mean angels means container referring to the spurs at the base of the lips that look like shooting stars. There are approximately 50 species and only a few hybrids in the genus Aerangis.
Aerangis orchids have two to three inflorescences that reach up to 15 inches in length with up to 25 flowers on each. The flowers last long but have no fragrance. Its color varies from pure white to pale yellow with a column of bright scarlet or vermilion.
The Aerangis orchid needs a bright but diffused light that is similar to the light requirements of the Phalaenopsis. This orchid grows well on an interior window sill. You can also grow with artificial orchid lights. 1,200 to 2,000 foot sails required. You can accomplish this with a four-tube fluorescent light placed about six inches from the top of the plant.
Aerangis orchids require temperatures ranging from 60 degrees F in the winter to 80 degrees F in the summer.
For best growing results they need at least 50% humidity. In its natural habitat, humidity averages between 70% and 75% for most of the year.
In spring and fall, keep the potting mix moist at all times. During winter and summer, water only often enough to keep the potting mix from drying out completely. Plants that are mounted should be sprayed every other day in summer. If the weather is hot, the plant should be soaked daily. If the plant doesn’t get enough water, the leaves will drop and the plant will die. Avoid using cold water as well for the same reason.
Fertilize every week during the growing season with quarter strength fertilizer.
Aerangis orchids can be grown in pots or hanging baskets. Use a medium or large potting medium similar to that used by all other epiphytic orchids.