Rhododendron viscosum, commonly known as Swamp Azalea, is a beautiful native deciduous shrub prized for its fragrant white to pink flowers, attractive foliage, and ability to thrive in moist landscapes. Native to the eastern United States, this adaptable azalea is an excellent choice for native plant gardens, woodland gardens, rain gardens, wetland edges, pond margins, and naturalized landscapes.
In late spring to summer, Rhododendron viscosum produces clusters of fragrant, tubular white to pale pink flowers, often with a delicate sweet scent that becomes especially noticeable in warm weather. The blooms attract bees, butterflies, hummingbirds, and other beneficial pollinators, adding valuable wildlife habitat to the landscape. After flowering, the foliage remains attractive through summer before developing warm yellow, orange, and red tones in fall.
Swamp Azalea performs best in partial shade to full sun and prefers consistently moist, acidic, organically rich soil. Unlike many azaleas, it is particularly well adapted to wet conditions, making it an excellent choice for rain gardens, stream edges, pond margins, and other moisture-rich areas. Once established, it is relatively low maintenance and provides multi-season interest.
With its fragrant summer flowers, attractive foliage, vibrant fall color, and excellent tolerance of moist soils, Rhododendron viscosum is an outstanding native shrub for gardeners looking to add beauty, pollinator value, and ecological interest to wet and woodland landscapes.