RHODODENDRON DEGRONIANUM Variable species native over a wide area of Japan, with different forms occurring on virtually every mountain range in the southern half of the island chain. Lower surface of the leaves is coated with a dense furry layer of hairs known as the indumentum, adding welcome color and interest in the nonblooming season. Pink to rose or rarely white flowers appear in late spring, and the plants are quite adaptable in most climates, even tolerating the heat and cold of the East Coast and upper Midwest if provided with proper shade and care. Hardy to -15 degrees.
 RHODODENDRON LUTEUM Deciduous azalea, outstanding as an ornamental for a sunny border or woodland edge. Bright yellow flowers are delightfully fragrant, and autumn foliage brings a bright red splash of color. A clone selected at the RSBG known as ‘Golden Comet’ is an especially fine form with a much larger inflorescence of deep yellow flowers and good resistance to the common, disfiguring but relatively harmless powdery mildew that so often afflicts azaleas. Hardy to -10 degrees.
 RHODODENDRON DAVIDSONIANUM AND R. AUGUSTINII Two of the finest and easiest species to grow in their color classes, the deep pink of the former contrasts brilliantly with the lavender blue of the latter.