Q. Can you be more specific on light requirements for orchids?
Vanda and Cattleya have quite high light requirements (2,000-3,000 foot-candles). Medium-light orchids such as Miltonia and Oncidium need 1,500-2,000 foot-candles. Low-light orchids such as Phalaenopsis and Paphiopedilum grow well at around 1,000 foot-candles. Light intensity can be measured with a light meter.
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- Courtesy of NYBG Plant Information Service