Photo by Ron Myhr
Grown at Royal Botanic Garden, Edinburgh
This blue form of S. johannis, more common in nature than the white form, makes a dramatic wall planting alongside a pathway in the glasshouses of the RBGE. This species is one of the most important of those involved in the development of modern hybrids, and has contributed its characteristic flower shape, as well as its floriferous nature, to many hybrids. A photo of a single potted plant better illustrates the nature of the plant when grown as a specimen.