I have a potted hibiscus that was outside all summer but I moved it in the house for the winter. It faces the north by a big patio door. It is now December and it continues to bloom and get new growth. I continue to fertilize it, as it is still blooming, although there are less blooms now and I only see one new bud. Perhaps, it is going into its dormant stage. We go south for the winter but I have someone that comes in and waters the plants every 2 weeks. The house stays around 50 degrees. Come spring should I prune the plant or just take it outside once the weather permits?