I live in Canada and for the last 5 years I take my hibiscus outside onto the deck for the summer. This year it grew to over 5 1/2 feet tall. It is now inside and still blooming. I am wondering if I should prune it after it finishes blooming and if so how much to prune. Every late fall I prune it by half but I just read that you should not prune until spring. Help! What should I do......Diddyc