(Antoon van Welie Rhododendron, Endtz & Co Hybrid Rhododendron, Rhododendron)
An old Endtz & Co. introduction still valued for its arresting flowers and handsome foliage, this rhododendron hybrid bears showy domed clusters of rich pink flowers from mid- to late spring. The wide-flaring, funnel-shaped blooms have a red-speckled upper lobes. This large upright shrub has waxy blue-tinged leaves.
L. J. Endtz of Boskoop, Holland, developed a number of rhododendron hybrids in the early twentieth century that are still widely planted today. Like most rhododendrons, they favor...
(Apricot Surprise Azalea, Deciduous Azalea)
Valued for their extreme hardiness and their colorful spring flowers, the Northern Lights Series is a group of hybrid deciduous azaleas developed by the University of Minnesota. The fragrant, apricot-orange, trumpet-shaped flowers of 'Apricot Surprise' appear in dense trusses from mid- to late spring. The petals are somewhat ruffled and curled at their margins. This compact rounded shrub has oval olive-green leaves that turn maroon in fall.
Plant this azalea in full to partial sun in acidic...
(April Rose Rhododendron, Rhododendron)
Valued for its early bloom, its exceptional cold-hardiness, and its handsome evergreen leaves, this hybrid rhododendron bears rounded trusses of luminous double purplish-red flowers in earliest spring. It has relatively small dark green leaves that turn bronzy-purple in fall. This upright chest-high shrub is closely related to the famed PJM Hybrids.
Like most rhododendrons, 'April Rose' prefers highly organic acid soil that is evenly moist but well-drained. It departs from the norm, however,...
(Arctic Glow Azalea, Carolina Azalea)
Valued for its showy early bloom, its cold-hardiness, and its handsome evergreen leaves, this hybrid rhododendron bears rounded trusses of pale purple flowers in earliest spring. The flaring funnel-shape blooms fade to white at their centers. This chest-high shrub has medium-sized elliptic dark green leaves that turn bronzy-purple in fall. It is closely allied to the PJM Hybrids.
Like most rhododendrons, 'Arctic Glow' prefers highly organic acid soil that is evenly moist but well-drained....
(Aromi Sunrise Azalea, Deciduous Azalea)
Bred in Mobile, Alabama, the Aromi deciduous azaleas result from crosses between Southeast United States natives (primarily Rhododendron austrinum) and hybrid azaleas such as the Exburys. The cultivar 'Aromi Sunrise' bears showy domed clusters of large funnel-shaped peachy-orange flowers with yellow highlights. The sweetly fragrant blooms appear in mid-spring. The upright medium-sized plants have lance-shaped light green leaves.
Aromi azaleas prefer partial shade and highly organic acid...
(Arthur Bedford Rhododendron, Rhododendron)
A hybrid of Rhododendron ponticum, this large upright evergreen shrub bears dense domed clusters of mauve flowers in late spring. The fragrant, broadly funnel-shaped blooms have a prominent maroon blotch. The long lance-shaped leaves are glossy dark green.
Like most rhododendrons, 'Arthur Bedford' prefers highly organic acid soil that is evenly moist but well-drained. It departs from the norm, however, in tolerating full sun. Plant it shallowly and mulch well to conserve moisture...
(Bali Rhododendron, Leach Hybrid Rhododendron, Rhododendron)
One of many outstanding hardy rhododendrons hybridized by David Leach of North Madison, Ohio, this broad rounded head-high shrub bears numerous wide-domed clusters of rose-pink flowers from mid- to late spring. The ruffled, broadly funnel-shaped blooms have a yellowish throat. The large narrowly elliptic leaves are yellow-green.
Like most rhododendrons, 'Bali' prefers partial shade and highly organic acid soil that is evenly moist but well-drained. Plant it shallowly and mulch well to conserve...
(Bariton Rhododendron, Hachmann Hybrid Rhododendron, Rhododendron)
One of hundreds of outstanding rhododendron hybrids introduced since 1951 by Hans and Holger Hachmann of Barmstedt, Germany, 'Bariton' bears showy spherical heads of deep reddish purple flowers with pale purple centers from mid- to late spring. The wide-flaring, wavy-edged, funnel-shaped blooms have a dark maroon blotch on their upper lobes. The upright, head-high plants are densely furnished with long narrow glossy green leaves.
Like most rhododendrons, Hachmann Hybrids prefer chilly winters,...
Auburn University Horticulture Department, Auburn, AL
(Evergreen Azalea, Robin Hill Azalea)
Robin Hill hybrid azaleas are a large group of evergreen shrubs that were hybridized in New Jersey by chemist and rhododendron enthusiast, Robert Gartrell. They are complex hybrids which combine the attributes of small-flowered hardy azaleas with those of the more tender large-flowered types. Generally, they are compact, spreading or mounding, have an extended blooming season and bear large flowers on small plants.
This large group of azaleas is quite cold tolerant. Their leaves are generally...