Dear Friends, Dr. Lindstrom is too modest. The link is just the tip of the ice berg. At - http://uark.edu/campus-resources/cotinus/… He shows hybrids of the hardy Manfreda virginica and Polianthes tuberosa, the tube rose. He has succeeded in producing a range of hybrids with other species of both genera. His abbreviation "mapo" and 'poma' indicate hybrids between various species in these two genera Some of his hybrids are extremely interesting showing combined characteristics of hardiness , fragrance, color range and more. Check out http://aragriculture.org/News/ReLeaf/… and we had some lively discussions here at the PBS site around Dec 2 of last year. Expect good things out of this research. Best Jim W. -- Dr. James W. Waddick 8871 NW Brostrom Rd. Kansas City Missouri 64152-2711 USA Ph. 816-746-1949 Zone 5 Record low -23F Summer 100F +