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Smooth Azalea

Rhododendron arborescens

Found in rocky riversides, wooded stream banks, swamps, high elevation forests, shrub balds. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

90
Keystone

Native to Mississippi. How scores work Is it native here?

Profile 100%

Height
8–20 feet
Spread
8–20 feet
Light
Full sun, Partial shade
Soil moisture
Usually moist

Space about 14 ft apart from its recorded spread. Enter your bed size for a count

Will it fit your yard?

Rare or protected plant. Specialist conservation planting; excluded from routine garden suggestions. Plant caution source

Hidden from default planting suggestions. Wildlife value and native status remain unchanged.

At a glance

Life cycle
Woody perennial
Leaves
Deciduous
Bloom
May to July
Fruiting season
July to October

Recorded in 3 Mississippi counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 2

Streams, rivers and their banks

Flowing water and its banks, bars and rocky shoals.

Swamps

Forested wetlands with standing water much of the year, such as cypress and gum swamps.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

52CaterpillarsGenus host records with ranges including MS

Genus host records with ranges including MS · Rhododendron

  • Acharia stimuleaSaddleback Caterpillar Moth
  • Acronicta oblinitaSmeared Dagger
  • Acronicta tritonaGray Dagger, Triton Dagger
  • Amphipyra pyramidoidesMiranda Underwing, Copper Underwing, Copper Amphipyra
  • Apatelodes torrefactaSpotted Apatelodes
  • Archips argyrospilaFruit-Tree Leafroller Moth
  • Automeris ioIo Moth
  • Callophrys augustinusThe Brown Elfin
  • Callosamia prometheaPromethea Silkmoth, Promethea Moth
  • Caloptilia violacellaTick-Trefoil Caloptilia
Show all 52
  • Catocala andromedaeAndromeda Underwing
  • Choristoneura rosaceanaOblique-Banded Leafroller Moth, Rosaceous Leaf Roller
  • Coelodasys unicornisUnicorn Caterpillar Moth
  • Darapsa choerilusAzalea Sphinx
  • Darapsa versicolorHydrangea Sphinx
  • Datana majorMajor Datana, Azalea Caterpillar
  • Datana ministraYellow-Necked Caterpillar Moth
  • Dichomeris ligulellaPalmerworm
  • Egira alternansAlternate Woodling
  • Hyalophora cecropiaCecropia Silkmoth, Cecropia Moth
  • Hyles lineataWhite-Lined Sphinx
  • Hyphantria cuneaFall Webworm
  • Megalopyge opercularisSouthern Flannel Moth, Puss Caterpillar
  • Melanolophia canadariaCanadian Melanolphia, Variable Redmarked Looper
  • Morrisonia confusaConfused Woodgrain
  • Oedemasia concinnaRed-Humped Caterpillar, Red-Humped Appleworm
  • Oiketicus abbotiiAbbot's Bagworm Moth
  • Olethreutes permundanaRaspberry Leafroller
  • Orgyia leucostigmaWhite-Marked Tussock Moth
  • Orthosia hibisciSpeckled Green Fruitworm Moth, Speckled Green Quaker
  • Palthis angulalisDark-Spotted Palthis
  • Papilio troilusSpicebush Swallowtail
  • Platynota flavedanaBlack-Shaded Platynota
  • Platynota stultanaOmnivorous Leafroller
  • Prolimacodes badiaSkiff Moth, Skiff Caterpillar
  • Rheumaptera prunivorataFerguson's Scallop Shell, Cherry Scallop Shell
  • Satyrium kingiKing's Hairstreak
  • Satyrium liparopsStriped Hairstreak
  • Schizura ipomaeaeMorning-Glory Prominent, Checkered-Fringe Prominent
  • Scopula limboundataLarge Lace-Border
  • Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
  • Sphinx kalmiaeFawn Sphinx, Laurel Sphinx
  • Spodoptera eridaniaSouthern Armyworm Moth
  • Spodoptera latifasciaOrange-Striped Armyworm, Velvet Armyworm Moth
  • Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
  • Strymon melinusGray Hairstreak
  • Synanthedon rhododendriRhododendron Borer
  • Thyridopteryx ephemeraeformisEvergreen Bagworm Moth
  • Trichoplusia niNi Moth, Cabbage Looper Moth
  • Xanthotype urticariaFalse Crocus Geometer
  • Epinotia septemberana
  • Paralobesia rhoifructana
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
24BeesSoutheastern regional records

Southeastern regional records · Rhododendron

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
2Specialist beesPollen specialists

Pollen specialists · Rhododendron

  • Andrena carolina
  • Andrena cornelli
Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
5BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Rhododendron

  • Bonasa umbellusRuffed Grouse
  • Falcipennis canadensisSpruce Grouse
  • Lagopus lagopusWillow Ptarmigan
  • Pinicola enucleatorPine Grosbeak
  • Plectrophenax nivalisSnow Bunting
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Ericaceae
Hardiness
Zones 4a–7b
Soil pH
Acidic
Flower color
Yellow, pink or white
Growth rate
Moderate
Growth habit
Several stems
Foliage color
Dark green
Fruit begins
July
Fruit ends
October
Growing sources and scope
Also known as

Sweet Azalea

Conservation status

Mississippi rankS1S2
Global rankG4G5
MS statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources