Emperor's flower, also known as Chinese royal azalea, is a species of flowering shrub in the genus Rhododendron. It is native to China and Japan and is widely cultivated in many parts of the world. Emperor's flower has large, showy flowers that come in shades of pink, purple and white. The flowers are borne on long stems with glossy green foliage. It blooms from late spring to early summer and can be used as an ornamental plant for gardens or landscapes. Emperor's flower is a hardy plant that requires little maintenance once established and can be grown in most soil types with adequate drainage.