Genus Rhododendron Species Cultivar 'Conlen' Common Name Encore® Azalea Autumn Bravo® Patent ID 11628 Height 2.5 to 3 Feet Spread 3 to 3.5 Feet Habit Compact, mounding habit. Moderate growth rate. Zone 6 to 9 Culture Full sun to partial shade. Flower Blazing red, single flowers. Spring, summer and again in fall. Flower Color Red Foliage Dark green, evergreen. Categories: Azalea Encore® Evergreen Shrub Description Photo courtesy of Encore® Azalea.