New from Marc Colombel of France, who has been working with tetraploid rhododendron parents to produce new plants with more chromosomes. The results are good. Rwain has thick leaves and big flowers like one of its parents 'Lem's Monarch', but have more yellow in the blooms. This addition of yellow adds a nice 'glow' to the trusses. This will become a 5 star plant as more people grow it and report about its assets.