Includes the genera Aerangis, Aeranthes, Diaphananthe, Eurychone, Jumellea, Oeonia, Rangaeris, and Sobennikoffia.
The group called Angraecoid orchids or subtribe Angraecinae is primarily native to central Africa, Madagascar, and the islands of the Indian Ocean. One Aerangis species is found on the island of Ceylon (Sri Lanka). A small group of primarily leafless Angraecoids are found in South America, the Caribbean islands, and southern Florida.
The biggest key to growing Angracoid orchids is maintaining a healthy viable root system. If the root systems are significantly damaged or lost it is VERY difficult to maintain the plants. Plants should be permitted to dry between watering. In the native habitats plants are subject to warm moist seasons where growth is active and fast, and warm dry periods where plants become dormant. While in active growth plants prefer to be watered 2-4 times a week or even daily as long as they are dry by night. While in dormancy, or slowed growth, plants will require only enough water to keep the leaves from shriveling. This could be 1-2 times a week.
Good root health is accomplished by providing good air circulation around the roots and NOT permitting the media to become soggy or damp. This is done by under potting the plants. Some of the mini and compact plants could easily exist in a 2” – 3” clay pot for life. Large plants such as Angraecum sesquipedale could be maintained in a 5” – 6” clay pot with medium-large bark and charcoal.
Aerangis will produce numerous thin aerial roots that hang out of the pot or dangle from the mount. These are easily controlled by wrapping the roots around the pot or mount. Soak the plant, pot, and all roots in warm water for 15-30 minutes until they are pliable. GENTLY wrap the roots around the pot/mount. You can loosely tie them with monofilament fishing line, a bread wrapper, or yarn. This will keep the plants compact and less likely to start fights with your other plants.
Most species are warm growing but will acclimate to intermediate conditions. This equates to minimum night time temperatures of 60-65F (15-18C) and day time maximum temperatures of 75-85F (23-29C). Most will take warmer temperatures if humidity is high.
Light requirements vary from medium (1000 ft. candles / 10700 lumen) to high light (3500+ ft. candles / 37,000 lumen).