Genus Rhododendron Species 0 Cultivar 'Conlec' Patent 10580 Common Name Encore® Azalea Autumn Royalty® Zone 6 to 9 Habit Upright habit. Height 4.5 Feet Spread 4 Feet Foliage Light green Flower Purple, Single, summer and again in fall. Flower Color Purple Culture Full sun to partial shade Categories: Azalea Encore® Evergreen Shrub Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window) Description Photo courtesy of Encore® Azalea.