Clethra alnifolia 'Ruby Spice' RUBY SPICE SUMMERSWEET

6-8 ft. (Zone 4)  Deep rose-colored, non-fading, fragrant flowers. An excellent  1995 addition to the summer-flowering shrubs. Provide acid, moist, well-drained soils, in full sun to relatively heavy shade.
 
Photo Credit: www.monrovia.com