My sister gave me a giant tuberous begonia for my birthday and she kept one for herself. I noticed the leaves are brown on the edges and I asked about hers and she said it is as well. I have no idea how to take care of this thing. Any ideas? I moved it into more shade and have been watering twice a day. Can I just cut off the crispy leaves or will it hurt it? I know some of you have to have these, lol. She got them off QVC because they were supposed to be bred for the south, lol.