(Deciduous Azalea, Lemon Lights Azalea)

The hardiest of the deciduous azaleas, the Northern Lights Series is a group of hybrids developed by the University of Minnesota. The slightly fragrant, lemon-yellow, trumpet-shaped flowers of 'Lemon Lights' 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 humus-rich soil. Excellent drainage is required....

(Evergreen Azalea)

A Belgian Indica hybrid, this evergreen azalea bears showy clusters of large bright red blooms. The funnel shaped, scentless flowers appear from early to mid-spring, but may also bloom in late fall and winter in frost-free districts. The upright, waist-high plants have elliptical, dark glossy-green leaves.

Primarily derived from the East Indian species Rhododendron simsii, Rhododendron indicum, and Rhododendron murconatum, Belgian Indica Hybrid azaleas were originally...

(Evergreen Azalea)

Combining showy bloom and superior cold hardiness, this Gable Hybird evergreen azalea bears fully double purplish-pink flowers from mid- to late spring on compact domed plants. The camellia-shaped blooms are carried in two- to three-flowered clusters. The small oval leaves are light green.

Developed mostly by Joseph Gable of Stewartstown, Pennsylvania, Gable Hybrids include some of the hardiest evergreen azaleas available, thanks to the contributions of Rhododendron yedoense var....

(Evergreen Azalea)

Gorgeous large soft-pink flowers with red-flecked upper lobes adorn this Pericat azalea in mid-spring. The clustered semi-double blooms are hose-in-hose (with two "stacked" tiers of petals). This rounded chest-high shrub has small elliptic medium-green leaves. Comprising more than 40 named cultivars, the Pericat hybrid azaleas likely have Kurume and Belgian Indica hybrids in their lineage. They prefer partial shade and highly organic acid soil that is evenly moist but well-drained. Although developed...

(Rhododendron)

Introduced in 1849 but still well worth planting for its hardiness, handsome form, and distinctive flowers, this hybrid of Rhododendron catawbiense and R. ponticum bears showy conical clusters of unusual flat star-shaped white flowers in mid-spring. They have a large gold blotch on their upper lobe. This dense, rounded, head-high shrub has large glossy dark-green leaves.

Like most rhododendrons, 'Madame Masson' favors chilly winters, moderate summers, partial shade,...

(Evergreen Azalea)

This Brooks Hybrid azalea bears large long-lasting white blossoms with greenish throats. The semi-double flowers appear from mid- to late spring. In frost-free climates flowering may begin in late fall. This compact rounded cultivar has elliptical leaves that hold their glossy-green color year-round. The product of crosses between Belgian Indica, Southern Indica, Kurume, and other hybrid azaleas, Brooks Hybrids are heat- and drought-tolerant evergreen azaleas bred in Modesto, California.

...

(Evergreen Azalea)

Bearing showy clusters of pink and white flowers from early to mid spring, this offspring of the Glenn Dale Hybrids 'Mother of Pearl' and 'Mandarin' is one of many evergreen azaleas developed by Don Hager of Spotsylvania, Virginia. The wide-flaring funnel-shaped blooms are hose-in-hose (with two superimposed whorls of petals). The habit is dense and compact.

Hager azaleas prefer partial shade and highly organic acid soil that is evenly moist but well-drained. Plant them shallowly and mulch...

(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, rich orange blooms of 'Mandarin Lights' appear in dense spherical trusses from mid- to late spring. The ruffled, broadly trumpet-shaped flowers bear a bright orange blotch on their upper lobe. This prolifically blooming cultivar gradually forms a dense upright shrub with oval olive-green leaves that are slightly...

(Rhododendron)

Well over a century old and still well worth planting, this cold-hardy, heat-tolerant Waterer Hybrid bears spherical clusters of soft rosy-purple flowers in late spring. The wide-flaring, funnel-shaped blooms have a prominent dark maroon blotch on their upper lobes. This spreading, open, head-high shrub has large, elliptic, glossy dark green leaves.

One of the horticultural dynasties of nineteenth and twentieth century England, the Waterer family introduced a diversity of large-leaved rhododendrons...

(Evergreen Azalea)

The single white flowers of this heat-tolerant Southern Indica Hybrid have striking broad rose-pink midstripes on their petals. The flaring funnel-shaped flowers appear from early to mid-spring. This upright rounded head-high shrub has 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....