Caring for Dendrochilum
Dendrochilums are increasing in popularity with growers every day. Generally compact plants produce upright, arching spikes with "chains" of small, bracted blooms that give an unrivaled display. One of the biggest attractions of dendrochilums is the ease with which they form showy specimen plants. New species are discovered with fair frequency, but many of the species long in cultivation retain their worth and popularity.
Dendrochilums, in general, come from some of the hottest jungle areas in the world. For this reason, plants are unhappy when nights go much below 60. Day temperatures into the 90's are also acceptable, provided there is ample humidity, though in the 80's is less stressful.

Bright, filtered light will promote the strong growths necessary to give best spikes. Leaf color is the best indicator of light quality. The leaves should be light green, even a little yellowish. Lush, dark green foliage indicates insufficient light and the plants may not flower. Humidity and Air Movement - These tropical plants will thrive with high humidity during the growing season. Since these conditions are also perfect for fungal and bacterial infections, keep the growing area well ventilated

Good quality water is essential for plants coming from high rainfall areas. Give abundant water during the growing season and reduce slightly as bulbs form up. Fertilize regularly with a balanced fertilizer, reducing the rate somewhat during cooler months.

These tropical plants will thrive with high humidity during the growing season. Since these conditions are also perfect for fungal and bacterial infections, keep the growing area well ventilated.

This is the most critical factor in successful Dendrochilum culture. Unlike many orchids that are best potted when new growths emerge, the flower spikes come from the new growths and potting may set the plant back fatally. Rather, pot the plant after flowering, as the bulbs form. This will accompany new root growth, and ensure that the plant will reestablish quickly. Do not be too anxious to divide plants of Dendcm. filiforme too small, as they can be set back for some time. We find it best to freshen the mix for smaller plants and only divide the largest plants. We use a mix of 2/3 fine and 1/3 medium bark with perlite.