I've received several orchids as gifts. They've been thriving in my bay window with a southern exposure. The sunlight has been defused by mini blinds. I am thoroughly enjoying the plants and have had no difficulty with them until now. It seems that the leaves on several of the plants have gone from firm and green to a wrinkled leathery look. I haven't changed any thing that I've been doing and don't understand what has happened. Also, when a plant is done blooming, is it OK to put it in new medium? Should I increase the size of the pot? Thank you for your input!
