Hello hybiscians...1. Is there two types of hybiscus? I bought 3 plants this year that are labled "rose mallow" and have the large dinner plate blooms and says 2 ft tall. I have seen a plant that appears to be 12 ft tall and more shrub like in someones yard...Are 'rose of sharron' and 'rose mallow the same thing? 2. Also is it possible to get seeds from shrub type (if it is different) and grow that from seed in zone 5b?