I got a hibiscus last summer and brought it inside for the winter. I kept it wattered and such but the flowers stopped opening and fell off. The tree/stem parts still looks alive. How do i get it to start flowering again? Do they usually hibernate in the winter? Or maybe my house is not warm enough for it? I am just starting with this whole gardening thing. I am the type of person who kills chia pets and bamboo. Any help would be greatly appreciated.