Gosh, I didn't know that either. Kwanso/Flore Pleno grow like crazy here, I have been giving them to friends and neighbors, literally hundreds of plants. I know next year I will be digging out more. They are my wife's favorite so I am forced to keep some, I also think they are one of the most beautiful plants I grow, but they were just taking overy my named varieties, so they had to go.I hope I have them pretty much under control but I will have to keep an eye on them.
