Rhododendron Swamp Azalea

Rhododendron Swamp Azalea

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Strong Clove Fragrance | Beautiful Fall Color
SKU 27998
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Item Form
Trade Gallon (3qt)
  • Buy 3 for $36.00 each and save 10%
Key Characteristics

4 - 9

Mature Height

5 Feet

Mature Width

12 Feet

Sun / Shade

Part Shade

Moisture Level

Moist, well-drained, Wet

Description / Rhododendron Swamp Azalea

Award of Garden Merit of the Royal Horticultural Society

One of 17 species of azalea native to the U.S., endemic to swamps, bogs, stream margins and wet lowlands from Maine to Ohio south to Florida and Alabama, this native wetland shrub (commonly known as swamp azalea) is sometimes called the clammy azalea for its very sticky corolla. The species name, viscosum, means sticky in Latin.

This is one of the last native azaleas to bloom. But in spring to early summer, it blooms profusely, after the leaves expand. Its clusters of 3 to 12 funnel-shaped white to blushing pink flowers have long, slender tubes at the base, 5 extended stamens, and a strong clove-like fragrance, attracting bees and birds.

A deciduous woody shrub, the plant is bushy with a loose, upright habit. It prefers acidic, humusy, well-drained soil, but tolerates wet soil, even poor drainage and periodic flooding, and grows up to 12 feet in width but averages only about 5 feet in height. Lustrous narrow leaves cluster at branch ends. They are green on both sides in summer, dark green above and pale below, and turn brilliant shades of yellow, orange, and maroon in fall.

Uses: Wetlands, Constant Moisture Issues, Stream and Riverbanks, Hedges, Mass Plantings

Product Details

Item Form Trade Gallon (3qt)
Genus Rhododendron
Species viscosum
Product Classification Trees and Shrubs
Habit Upright
USDA Zone Low 4
USDA Zone High 9
Sun / Shade Part Shade
Bloom Color Pink, White
Bloom Season Start Late Spring
Bloom Season End Late Summer
Foliage Color Medium Green
Resistance Cold Hardy
Special Features Bird Lovers, Butterfly Lovers
Uses Border, Hedge
Zone 4, 5, 6, 7, 8, 9
State Shipping Restrictions GU, HI, ID, PR, VI
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