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Rhododendron viscosum

Swamp Azalea

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This deciduous azalea blooms in summer. The abundant white flowers have a spicy, clove-like fragrance that fills the garden. The flowers attract butterflies and hummingbirds. Plants grow into multi-stemmed shrubs that put on a show in fall with their flame red foliage.

Benefits

Prolific white flowers attract butterflies and hummingbirds
Happy in poorly-drained soil and wetland areas
Flowers late so it will extend your season of color
Lustrous green foliage with a great fall color
Tough, winter hardy azalea

Homeowner Growing and Maintenance Tips

True to its name, swamp azalea enjoys a soggy spot but can not have its roots submerged in water. It will tolerate some drought. Grow in full sun or partial shade in acidic soil. Prune after flowering for best shape.


Height
8-10 Feet

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Spread
6-8 Feet

USDA Hardiness Zone 3-9

Native Range

Wooded and open swamps, streamsides; Maine to Ohio south to southeastern Texas and Florida.

Native Trivia

This is not your typical spring flowering azalea! Azalea viscosum is a tough native plant with fragrant blooms in summer.


"Want a moisture-loving plant that will bring butterflies and hummingbird to your garden? Try this one."

Good Companions
Ruby Spice Summer Sweet (Clethra alnifolia)

Characteristics & Attributes

Plan Sub Group
Medium to Tall Shrubs
Exposure
Filtered Shade
Morning Sun / Afternoon Shade
Sun
Soil
Acidic
Humus-rich
Wide soil tolerance
Soil Moisture Preference
Moist
Wet
Attracts Wildlife
Butterflies
Hummingbirds
Mammals
Songbirds
Bloom Time
Summer
Habitat Collection
Butterfly
Wet Sun
Native Habitat
Riparian, wetland
Foliage Color
Dark Green
Uses
Accent
Bog, water garden
Border
Erosion control
Fragrant
Hedge, screen
Mass plant
Specimen
Native to
Alabama
Arkansas
Connecticut
Delaware
District of Columbia
Florida
Georgia
Louisiana
Maine
Maryland
Massachusetts
Mississippi
New Hampshire
New Jersey
New York
North Carolina
Oklahoma
Pennsylvania
Rhode Island
South Carolina
Tennessee
Texas
Vermont
Virginia
West Virginia