LIGHT
needs are easy to fulfill for Bulbophyllum. They can receive ambient light in a greenhouse or North window at the least, to five hours of direct sun at the most. Most will thrive with two to three hours of direct sun a day.
- In a greenhouse, shadecloth is required to reach about 10,750-32,200 lumens/1,000-3,000 foot-candles, depending on the plants.
- In the home, east, north, or west windows where they will get about 1-5 hours of direct sun are ideal. Some species will flower even with no direct sun exposure, as long as the ambient light is bright enough.
Many types of Bulbophyllum will grow well under artificial light. Use lightbulbs/LEDs of your choice that are about 1-2 feet above the plant and emit >10,000 lumens per square yard/square meter. The lowest amount of lumens for growth is about 1000 lumens, though flowering may be poor.