Azalea ‘Helen Close’ is a compact, evergreen shrub that forms a dense, rounded habit, reaching approximately 3 to 4 feet in both height and width. In mid-spring, it showcases showy clusters of large, single white flowers, each adorned with a subtle pale yellow blotch that fades to white. The glossy, dark green foliage provides a striking contrast to the pristine blooms, making it an excellent choice for foundation plantings, mixed borders, hedges, and naturalistic gardens.