|Dense, twiggy, dwarf, semi-evergreen shrub that is native to the mountaintops of Kyushu Island, Japan. R. kiusianum has also been known as R. indicum amoenum and R. obtusum f. japonicum. Hardy to 0 degrees F. Leaves are small, obovate, dark green, 1/4 to 3/4 inch long. Flowers are small, held in trusses of 2 to 3 per cluster, and borne from mid to late spring. Best adapted to full sun. Beautiful planted in containers, rock gardens and in drifts at the front of a shrub border.
Prune immediately after flowering so you won't cut off any of next year's flower buds. Best if not sheared. Plant as you would any of the other azaleas: high and in well-drained, acidic soil, rich with organic matter. Though azaleas have a potentially large list of possible pest and disease problems, they are usually trouble free if planted correctly in proper cultural conditions.