Rhododendron 'Mount St. Helens' - Mount St. Helens Azalea is covered in stunning clusters of lightly-scented pink trumpet-shaped flowers with coral-pink overtones and a yellow blotch at the ends of the branches in mid spring before the leaves. It has green foliage throughout the season. The narrow leaves do not develop any appreciable fall color. Sun to Partial Shade. Grows to 6 ft. tall, 6 ft. wide.