Auburn University Horticulture Department, Auburn, AL
A heat-tolerant Southern Indica hybrid, this evergreen azalea bears showy clusters of large rose-red funnel-shaped flowers from early to mid-spring. The upright, eye-high plants have handsome dark green leaves.
Selected in the Southeast United States for their tolerance of hot humid conditions, Southern Indica azaleas descend from the Belgian Indica Group. Their ancestry includes the East Asian species Rhododendron simsii, R. indicum, and R. murconatum....
David C. Royster
(Deciduous Azalea, Primrose Azalea)
Numerous dense trusses of ruffled pale yellow funnel-shaped flowers adorn this Exbury Hybrid azalea in late spring, before the foliage has fully emerged. Each flower bears a dark yellow blotch on its upper lobe. This open upright medium-sized shrub has hairy bright green elliptic leaves that turn red-bronze in fall.
Developed by Lionel de Rothschild at his Exbury Estate in England, Exbury Hybrids are deciduous azaleas whose ancestry includes the Ghent, Molle, and Knap Hill hybrids and several...
A Belgian Indica Hybrid, this evergreen azalea bears showy clusters of large white red-striped flowers. The flaring, funnel-shaped blooms appear in late winter and early spring, but sometimes also from fall to late winter in frost-free districts. The mounded chest-high plants have elliptic dark glossy-green leaves.
Primarily derived from the East Indian species Rhododendron simsii, Rhododendron indicum, and Rhododendron murconatum, Belgian Indica Hybrid azaleas were...
David C. Royster
(Evergreen Azalea, Prize Azalea, Whitewater Hybrid Azalea)
A Whitewater Hybrid, this evergreen azalea bears showy clusters of large semi-double rose-red flowers in spring. The mounded chest-high plants have elliptic green leaves.
Developed for greenhouse forcing by Henry Motzkau of the United States, Whitewater azaleas result from crosses involving Belgian Indica Hybrids and other hybrid azaleas. Although developed primarily for container growing, they also do well in the landscape in mild climates.
Whitewater azaleas prefer partial shade and...
(Evergreen Azalea, Glenn Dale Hybrid Azalea, Prudence Azalea)
Bearing showy few-flowered clusters of bright purple-pink flowers from early to mid-spring, 'Prudence' is one of the more than 400 named evergreen azalea hybrids developed from the late 1920s through the 1940s at the United States Department of Agriculture’s Plant Introduction Station at Glenn Dale, Maryland. The funnel-shaped blooms are unscented and unmarked. The spent flowers drop rather than persisting on the plant. This upright, rounded, shoulder-high shrub has small elliptic glossy dark-green...
Gerald L. Klingaman
Combining showy bloom and exceptional cold hardiness, 'Purple Splendor' bears bright magenta-purple flowers from mid- to late spring on low spreading plants. The hose-in-hose (two "stacked" whorls of petals), broadly funnel shaped blooms have red spotting on their upper lobes. The small, elliptic, shiny green leaves take on bronze and burgundy tints in fall, and may be deciduous in severe winters.
Developed mostly by Joseph Gable of Stewartstown, Pennsylvania, Gable Hybrids include some of...
(Hines Hybrid Azalea, Rachel Bandy Azalea, Rhododendron)
Introduced by Hines Nursery of Irvine, California, this tender evergreen azalea results from crosses among Belgian Indica Hybrids and other hybrid azaleas. It bears a profusion of large semi-double magenta-rose flowers from late winter to early spring. The clustered, fragrant blooms have burgundy-spotted upper lobes. This compact upright cultivar forms a chest-high shrub that is somewhat broader than tall. The small hairy lance-shaped leaves are glossy-green. Although developed partly for container...
(Nearing Hybrid Rhododendron, Ramapo Rhododendron, Rhododendron)
A delightful sprite of a rhododendron, this small-leaved Nearing Hybrid is valued for its dense compact habit, exceptional cold hardiness, and showy clusters of bright lavender-purple flowers from early to mid-spring. The flaring funnel-shaped flowers are unmarked. This mounded knee-high shrub has small round aromatic leaves that open pale dusty blue, deepen to bluish green, and become bronze-tinged in cold weather.
Guy Nearing of New Jersey developed numerous outstanding rhododendron cultivars...
Showy clusters of mildly fragrant purplish-pink flowers adorn this compact evergreen azalea in mid-spring. The wide-flaring, starry, funnel-shaped blooms have red-spotted upper lobes. This dense low spreading shrub has small rounded leaves.
Bred for their low spreading habit and good cold-hardiness, Carlson Hybird azaleas were developed after 1960 by Bob and Jan Carlson at their nursery in South Salem, New York. They are hybrids of 'Mucronatum', an ancient white-flowered cultivar from Japan. These...