BGreen,
I got this clump last summer and overwintered it inside in a growing state with no problem. It was near a set of glass doors facing south. I would think added humidity would be of benenfit, but I did not add any to my den. I am not willing to divide mine right now, with it blooming, but if you do not get one by spring, let me know and I will be happy to divide you out a piece to try...
Randy