Quart Plant from Azalea Red Ruffles. A hardy evergreen azalea featuring soft red, hose in hose, semi-double 2 2 inches in diameter, and blooms against a background of lush green foliage. These showy flowers begin to appear in early spring. Matures to a height of 2 to 4 feet. Red Ruffles is a Rutherford hybrid and is an evergreen spring bloomer. Rutherford hybrids generally reach a height of 2 to 4 feet and do best with afternoon shade. Zones 5 to 9.