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Rhododendron kaempferi

Common Name(s):

Phonetic Spelling
rho-doh-DEN-dron KAYMP-fer-ee
This plant has high severity poison characteristics.
See below
Description

Woody, evergreen or deciduous shrub in the Ericaceae family.  Low maintenance and easy to grow. This cultivar is less demanding than Kurume azaleas (Rhododendron ponticum)

Wildlife Value: Nectar from flowers attracts hummingbirds and bees. Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli.

Insects, Diseases, and Other Plant Problems:  Rhododendrons are susceptible to insect and disease problems.  Insect problems include aphids, borers, lacebugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips, and whitefly.  Diseases include canker, crown rot, root rot, leaf spot, rust, and powdery mildew.  Full sun can scorch the leaves and the roots rot if the soil does not drain well.   A healthy plant in the right place with proper maintenance should have few problems. This plant is frequently damaged by deer.

Form:  Upright; open 

Poison Part:  All parts.

Poison Delivery Mode:  Ingestion

Severity:  HIGHLY TOXIC, MAY BE FATAL IF EATEN!

Found in:  Houseplant or interiorscape; landscape as a cultivated woody shrub; a forest or natural area.

 

VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers" a plant identification course offered in partnership with Longwood Gardens.

More information on Rhododendron.

Profile Video:
See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#bees#hummingbirds#evergreen#deciduous#wildlife plant#nectar plant#specialized bees#pollinator plant#problem for cats#problem for dogs#problem for horses
 
Cultivars / Varieties:
Tags:
#bees#hummingbirds#evergreen#deciduous#wildlife plant#nectar plant#specialized bees#pollinator plant#problem for cats#problem for dogs#problem for horses
  • Attributes:
    Genus:
    Rhododendron
    Species:
    kaempferi
    Wildlife Value:
    Nectar from flowers attracts hummingbirds and bees. Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli.
    Dimensions:
    Height: 4 ft. 0 in. - 10 ft. 0 in.
    Width: 5 ft. 0 in. - 6 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Poisonous
    Shrub
    Woody Plant Leaf Characteristics:
    Deciduous
    Habit/Form:
    Open
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Drainage:
    Good Drainage
    USDA Plant Hardiness Zone:
    5b, 5a, 6b, 6a, 7b, 7a
  • Flowers:
    Flower Color:
    Gold/Yellow
    Orange
    Pink
    Red/Burgundy
    White
    Flower Description:
    Salmon-red, orange-red, pink to rosy scarlet and white flowers
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Leaf Color:
    Gold/Yellow
    Green
    Deciduous Leaf Fall Color:
    Red/Burgundy
    Hairs Present:
    No
    Leaf Description:
    Dark green leaves; reddish fall color
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Attracts:
    Hummingbirds
    Pollinators
    Specialized Bees
    Problems:
    Problem for Cats
    Problem for Dogs
    Problem for Horses
  • Poisonous to Humans:
    Poison Severity:
    High
    Poison Symptoms:
    Salivation, watering of eyes and nose, abdominal pain, loss of energy, depression, nausea and vomiting, diarrhea, weakness, cardiac failure, difficult breathing, progressive paralysis of arms and legs, coma.
    Poison Toxic Principle:
    Andromedotoxin, Grayantoxin
    Causes Contact Dermatitis:
    No
    Poison Part:
    Bark
    Flowers
    Fruits
    Leaves
    Roots
    Sap/Juice
    Seeds
    Stems