The Encore Azalea Autumn Carnation produces rich medium pink blooms spring, summer, and fall that resemble those of the traditional Pink Ruffle Azalea. Carnation is an intermediate size Encore® Azalea with a mature height of 4 ½ ft and width of 4 ft. This azalea has exceptional color quality that stands out against the lustrous dark green foliage. Carnation is one of the best cold hardy Azaleas around with the ability to thrive in USDA zone 6A. Encore® Azaleas are great for planting in the landscape or in container gardens and will grow best in slightly acidic soil.