Is this the forum to discuss Tropical Hibiscus? I see all other kinds of Hibiscus discussed on the "Hibiscus" forum, but little mention is made about the tropicals. Some of the newer varieties have very unique coloration and I'm thinking that surely with this many to select from there's some discussion about the merits of one over the other. I know really nothing about them except what I see for sale at the box stores, but I do mail order if it's worth it. Any suggestions?