This gem only grows to a mature height of 2-3', compact enough to be the thriller in a "spiller-filler-thriller" container garden. This is also a fantastic border plant for really brightening up a shade or woodland garden. The clusters of fragrant, vivid blooms make strong pollinator and butterfly attractors. The plant is a strong, vigorous performer that's hardy through zone 4—which is too cold for the average azalea. It's resistant to Verticillium wilt, a disease that commonly affects azaleas. Named for its hybridizers, Ivan and Robertha Arneson, who were renowned for their work in azalea breeding. Rhododendron 'Arneson Gem'