The Azalea Autumn Princess® (Rhododendron ‘Roblea’ PP12142) has striking purple winter foliage and dark green summer foliage that accentuates the ruffled blooms. Azaleas perform best in acidic soils. The Autumn Princess® boasts 2 inch wide semi-double blooms in the spring and then re-blooms sporadically from mid-summer to frost.