

Swamp Azalea
Rhododendron viscosum
Swamp azalea is the last native azalea to bloom, opening white to very pale pink flowers with long protruding stamens in June and July when the spring azalea season is long over. The flowers are intensely, almost overwhelmingly fragrant. a sweet clove-like scent that carries on evening air in a way few garden plants can match. The name 'viscosum' means sticky, referring to the glandular hairs on the tube of the flower that trap insects. It grows naturally in wet swamps and bog margins throughout the coastal plain, which makes it the right plant for the wet spots in the yard that stay soggy all season. Hummingbirds and clearwing moths work the long-tubed flowers in the evening. Fall foliage is typically orange to red. This is a fragrant, graceful shrub that performs best where it has consistently wet feet. the problem site it was born to solve.
We grow a range of sizes and prices. Add the plant to your list, then pick your size when you visit.
Final price confirmed at pickup, depends on size and season.
- Thu, Jul 238 AM – 4 PM
- Fri, Jul 248 AM – 4 PM
- Sat, Jul 258 AM – 2 PM
A nursery-grown plant, ready for the ground.
Healthy, container-grown swamp azalea propagated on-site at Hill House from regional genetics. Includes a one-page care card. We make every effort to supply plants as listed; occasionally we substitute a similar species of equal value.
- Sun
- Full sun
- Water
- Average
- Mature size
- 3'–8'
- Bloom
- Intensely fragrant white flowers in June-July, orange-red fall color
- USDA zones
- 4-9
Pairs well with these.
Same light, same soil, same wildlife. Janet's picks to plant alongside swamp azalea.
Or skip the guesswork.
Curated packages bundle 9–12 species that work together. One reservation, one pickup day, a printed layout map.

Butterfly Package
Host and nectar plants chosen to feed monarchs, swallowtails, and fritillaries spring through fall.

Hummingbird Package
Tubular-flowered natives that pull ruby-throats through your yard April through October.

S.O.S. Package
Save Our Songbirds, berry- and seed-bearing natives that feed nesting and migrating birds.