| You do not need much light for orchid growth but every type of orchid has an optimum amount of light it needs to flower. Young plants can be grown in quite low levels and often it is preferred to do so.
Paphiopedilums (Lady Slippers) 900 foot candles to flower
Phals want 1500 foot candles
Oncidium 2500
Dens and Cattleya 3500
Vanda 8000
Almost any orchid can take a few hours of sun even Paphs. I grow in much higher then recommended levels and accept a few burn leaves as payment for more than normal amounts of flowers.
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jerry |