Thanks Weebl, I forgot to mention that mine is mounted as well and dries out between waterings.
Has yours flowered? I would have guessed that Schomburgkia superbiens would require more warmth to mature growth and flower....
It would be nice to know exactly how many hours above x temperature is required for y orchid to mature growth and flower. Then we could predict the northernmost or southernmost grow limit for epiphytic orchids. For example...how far up the coast of California could Schomburgkia superbiens successfully grow?