Rhododendron canescens (Mountain Azalea, Piedmont Azalea) is a pink-flowering native. Some are white with a pink blush while others have dark pink blooms. USDA zones 6-10; part shade, full shade to full sun with moist soil.
Rhododendron austrinum (Flame Azalea) is a flashy orange-flowering native. USDA zones 6-10; part sun to shade in moist soil.
All azaleas were photographed on April 26, 2009 by Freda Cameron at Sarah P. Duke Gardens on the campus of Duke University in Durham, North Carolina. There is no admission fee to visit these 55-acre public gardens in the Triangle area of Raleigh, Durham and Chapel Hill.