R. crassumA late blooming FRAGRANT white rhododendron species with very attractive dark green shiny foliage. Found growing in the wild at 7,500 12,000 ft in the mountains of Yunnan, S. E. Tibet, and Upper Burma. Choice! Premium Variety This variety has proven itself over time to be a higher grade plant with better performance, a higher degree of attractiveness, and is hard to find and purchase.