Rhododendron Swamp Azalea

Strong Clove Fragrance | Beautiful Fall Color
  • Buy 3+ for $30.95 each save 11%
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Item Form
Trade Gallon (3qt)


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with your zone

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Features to Note


4 - 9

Mature Height

5 Feet

Mature Width

12 Feet

Light Requirements

Part Shade

Moisture Requirements

Moist, well-drained, Wet

Zone Compatibility

This Variety's Zone Range
4 - 9
My Hardiness Zone

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The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatibility range of this variety before ordering.


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


Genus: Rhododendron
Species: viscosum
Item Form: Trade Gallon (3qt)
Category: Trees and Shrubs
Bloom Season Start: Late Spring
Bloom Season End: Late Summer
Bloom Color: Pink, White
Habit: Upright
USDA Zone Low: 4
USDA Zone High: 9
Uses: Border, Hedge
Zone: 4, 5, 6, 7, 8, 9
State Shipping Restrictions: GU, HI, ID, PR, VI
Discount Exempt: No



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