Rhododendron viscosum: Wildlife Value
Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli. Tolerates damage by rabbits.
Plant Profile: Rhododendron viscosum
Taxonomy: Rhododendron viscosumNames
Clammy Azalea, Swamp Azalea, Swamp Honeysuckle
Phonetic Spelling:rho-doh-DEN-dron vis-KOH-sum
Genus:Rhododendron
Species:viscosum
Family:Ericaceae
Woody shrubs, whether evergreen or deciduous, develop into dense thickets as they mature, exhibiting a loose and open growth pattern. They thrive in wet planting environments.
In terms of wildlife, the genus Rhododendron is known to support the specialized bee species Andrena (Andrena) cornelli. Additionally, these plants can withstand damage caused by rabbits.
For further details on Rhododendron, please refer to additional resources.
Rhododendron viscosum Feature Summary
Rhododendron viscosum Image Gallery
Tags
#hummingbirds
#evergreen
#deciduous
#poisonous
#drought tolerant
#wildlife plant
#moths
#nectar plant
#wet sites
#specialized bees
#pollinator plant
#food source summer
#food source fall
#Coastal OBL
#food source herbage
#food source nectar
#food source pollen
#Piedmont Mountains FACW
#mammals
#butterfly larvae
#problem for cats
#problem for dogs
#bee friendly
#problem for horses
#audubon
Similar Plants
Rhododendron viscosum is often confused with:
Rhododendron viscosum Feature Summary
Attributes
Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli. Tolerates damage by rabbits.
Woody
Fruit
Elongated capsule. Displays from July to October.
Capsule
Summer
Fall
Flowers
Very fragrant, sticky white flowers bloom from May to July in a terminal cluster, tubular, 5-parted.
White
Fragrant
Showy
Summer
4-5 petals/rays
fused petals
Tubular
Leaves
Alternate, simple, lustrous green leaves; smooth- or toothed-margined
Deciduous
Broadleaf Evergreen
Green
Red/Burgundy
Simple
Alternate
Entire
Serrate
Poisonous to Humans
Salivation, watering of eyes and nose, abdominal pain, loss of energy, depression, nausea and vomiting, diarrhea, weakness, difficult breathing, progressive paralysis of arms and legs, coma.
Andromedotoxin
High
Seeds
Leaves
Stems
Flowers
Bark
Fruits
Roots
Whole Plant Traits
Shrub
Native Plant
Poisonous
Deciduous
Broadleaf Evergreen
Spreading
Open
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Good Drainage
Moist
Occasionally Wet
3 feet-6 feet
Coastal
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
9a
9b
Stem
Landscape
Butterfly Garden
Pollinator Garden
Heat
Wet Soil
Rabbits
Woodland
Naturalized Area
Houseplants
Butterflies
Pollinators
Bees
Moths
Small Mammals
Specialized Bees
Poisonous to Humans
Problem for Cats
Problem for Dogs
Problem for Horses
Rhododendron viscosum Image Gallery
Rhododendron viscosum Attributes
Rhododendron viscosum: Life Cycle
Annual
Biennial
Bulb
Perennial
Woody
Rhododendron viscosum Fruit
Rhododendron viscosum: Fruit Description
Elongated capsule. Displays from July to October.
Rhododendron viscosum: Fruit Type
Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua
Rhododendron viscosum: Display/Harvest Time
Fall
Spring
Summer
Winter
Rhododendron viscosum Flowers
Rhododendron viscosum: Flower Description
Very fragrant, sticky white flowers bloom from May to July in a terminal cluster, tubular, 5-parted.
Rhododendron viscosum: Flower Color
White
Rhododendron viscosum: Flower Value To Gardener
Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy
Rhododendron viscosum: Flower Bloom Time
Winter
Spring
Summer
Fall
Rhododendron viscosum: Flower Petals
2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals
Rhododendron viscosum: Flower Shape
Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel
Rhododendron viscosum Leaves
Rhododendron viscosum: Leaf Description
Alternate, simple, lustrous green leaves; smooth- or toothed-margined
Rhododendron viscosum: Woody Plant Leaf Characteristics
Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen
Rhododendron viscosum: Leaf Color
Green
Red/Burgundy
Rhododendron viscosum: Leaf Type
Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple
Rhododendron viscosum: Leaf Arrangement
Alternate
Opposite
Other/more complex
Rosulate
Whorled
Rhododendron viscosum: Leaf Margin
Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate
Rhododendron viscosum: Hairs Present
No
Yes
Rhododendron viscosum Poisonous to Humans
Rhododendron viscosum: Poison Symptoms
Salivation, watering of eyes and nose, abdominal pain, loss of energy, depression, nausea and vomiting, diarrhea, weakness, difficult breathing, progressive paralysis of arms and legs, coma.
Rhododendron viscosum: Poison Toxic Principle
Andromedotoxin
Rhododendron viscosum: Poison Severity
High
Low
Medium
Rhododendron viscosum: Causes Contact Dermatitis
No
Yes
Rhododendron viscosum: Poison Part
Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems
Rhododendron viscosum Whole Plant Traits
Rhododendron viscosum: Plant Type
Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower
Rhododendron viscosum: Woody Plant Leaf Characteristics
Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen
Rhododendron viscosum: Habit/Form
Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping
Rhododendron viscosum Cultural Conditions
Rhododendron viscosum: Light
Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Rhododendron viscosum: Soil Drainage
Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry
Rhododendron viscosum: Available Space To Plant
12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet
Rhododendron viscosum: NC Region
Coastal
Mountains
Piedmont
Rhododendron viscosum: USDA Plant Hardiness Zone
4a
4b
5a
5b
6a
6b
7a
7b
8a
8b
9a
9b
Rhododendron viscosum Stem
Rhododendron viscosum: Stem Is Aromatic
No
Yes
Rhododendron viscosum Landscape
Rhododendron viscosum: Landscape Theme
Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden
Rhododendron viscosum: Resistance To Challenges
Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind
Rhododendron viscosum: Landscape Location
Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland
Rhododendron viscosum: Attracts
Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees
Rhododendron viscosum: Problems
Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy
