For standard cymbidiums a temps drop does initiate help initiate blooms. I will soon have to put my cym. outside because they will grow better as well.
Cymbidiums do handle a lot of sun. Generally orchids with grassy foliage will take higher light, and it is a evolutionary trend. Orchids with broad leaves also tend to take less light such as phals.
I had mine near a tree...still it wasn't very shady. I had other a standard and a chinese cymbidium. (Chinese cymbidiums don't need as much light)
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Fren
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