My orchid tree

[King_of_orchid_growing:)]

Catts, Paphs, Phals, Cyms, Vandas, Papilionanthe, and Bulbophyllums, just to name a few.

Just find some that are temperature tolerant, and stick them on the tree.

There are some epiphytical Cymbidiums, btw. Same with Paphs, but the issue with Paphs is that the ones sold in the hobby that can tolerate cold, are not epiphytes.

There might be a few species of temperature tolerant Phals as well. I wouldn't try the hybrids.