Those tropical hibiscus are beautiful, Cinta.
I normally over winter my hibiscus (dormant) in my garage in my zone 8a area. But last year those small (fancy) hybrids did not come back.
I just bought another pot on clearance, but I'm going to keep them somewhere indoors this winter.
The others (such as Painted Lady), I'm going to place under the house. I had potted brugs that survived over the winter in that area last year. I think it's warmer there than in the garage. Hopefully there will be less clutter in the garage, giving DH less reasons to complain.