Genus Azalea Species hybrida Cultivar 'Hardy Gardenia' Common Name Hardy Gardenia Azalea Zone 7 to 9 Habit Compact, rounded shrub. Evergreen. Height 3 to 4 Feet Spread 3 to 4 Feet Foliage dark green, evergreen. Flower 2 1/2", double white blooms. Blooms mid to late spring and again in late September. Flower Color White Culture Full sun to partial shade. Categories: Azalea 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 Part of the Bloomin’ Again Series. Blooms spring and again in the fall.