My tropical hibiscus (red) is only about a foot tall. I've had it out on my balcony all summer. Nights are getting cool now and I'd like to bring it inside for the winter months. I would like to know if I should transplant it first or give it new soil or anything? I don't know all that much about hibiscus. I noticed that some of the wood stems are bare with leaves only at the top. What should I do about that?