// SPECIES PROFILE · SHRUB · NATIVE

Swamp azalea

Rhododendron viscosum

Swamp azalea (Rhododendron viscosum) is a shrub in the — family. Native range includes AR, OK. Hardy in zones 3a–11b. Mature size 6'–15'. Blooms May–Aug.

// QUICK FACTS

Family: —
Group: shrub
Native range: Native to 24 U.S. states, including AL, AR, CT, DC, DE, FL…
USDA hardiness: Zones 3a–11b
Mature size: 6'–15'
Sun: Part shade
Water: High · moisture-loving
Bloom: May–Aug
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Swamp azalea (Rhododendron viscosum) — *Rhododendron viscosum* — Swamp azalea. Photo via iNaturalist — (c) Sandy Wolkenberg, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Swamp azalea (Rhododendron viscosum) is a shrub in the — family. Native range includes AR, OK. Hardy in zones 3a–11b. Mature size 6'–15'. Blooms May–Aug.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, swamp azalea pairs naturally with: American Witch Hazel (Hamamelis virginiana), Buttonbush (Cephalanthus occidentalis), False Indigo Bush (Amorpha fruticosa), New Jersey Tea (Ceanothus americanus).