Ludisia discolor always does better for me outside in Summer, warm and somewhat shady. But - here is the thing:
Some years ago I had a pot with Ludisia which did absolutely crummy for me, pieces kept falling off, it did lousy. I sort of threw out the pot, it wound up for a whole Summer in a sunny corner in my yard, waiting to be dumped out so I could re-use the empty pot. Well, in September I looked at it a little closer, it looked better than ever. Healthy strong new growth!! All the soft growth was gone. Taught me that it actually can take a bit of sun, and also our Summers here in NJ can be quite hot with temps in the nineties.
