Azaleas prefer a little sun and a little shade. Plant them in blazing hot sun and they may suffer leaf scorch or become targets for leaf-sucking pests, such as spider mites and lace bugs. Plant them in dense shade and they won't bloom. Typically reaches 2 to 4 ft. tall and wide. The unusual ruffled texture of 'Red Ruffles' stands out against simple backgrounds such as a stucco wall or planted among large leaf foliage plants.