Hibiscus: Question on over-wintering the Tropical Type, 1 by maureen1952

maureen1952 wrote:
I bought a Blueberry Thrill hibiscus last fall and it did great ove the winter ,even giving me a few blooms. It spent the winter outdoors and was spectacular. My problem now is that it is just too big. Someone told me I can cut it back and put it in a cooler room. If that is so, how far back do I cut it and how low a temperature can I keep it? I was going to keep it with my cactus, which are dorment and temps are in the 40's-50's. It will be dependent on the natural (weak) sunshine of zone 5. I'd really hate to lose this plant - it's just beautiful. If I do cut it back and anyone wants cuttings let me know.
Any advice would be most appreciated.