Thanks for the info Tindo! Sounds like I would need supplemental lighting if I grew them indoors. It's just too dark in the Pacific Northwest in winter.
I bet some of them could be grown in sphagnum, since many are epiphytes.
My Tacca I grow inside a 55 gallon terrarium converted from an aquarium. It recieves very little light (One T8 Shop light). Its really really easy to keep alive so long as the humidity levels are right.
Thank you. That's what I thought - mine doesn't get enough humidity...