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Clethra alnifolia Clethra alnifolia

Sun Azalea Rhododendron Southern Indica Hybrids

Other Common Name(s):

Description

Evergreen to deciduous shrub in the Ericacae family.  Many cultivars; strong sun and heat tolerance; large flowers; buds hardy to 20 degrees F.  This plant is moderately salt tolerant.

Wildlife Value: Flowers attract humingbirds. 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 scortch the leaves and the roots rot if 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.

More information on Rhododendron.

Cultivars / Varieties:
  • 'Brilliant'
  • 'Formosa'
  • 'George Tabor'
  • 'G. G. Gerbing'
Tags:
#bees#hummingbirds#evergreen#hardy#sun#showy flowers#deciduous#heat tolerant#wildlife plant#salt tolerant#specialized bees
 
Rhododendron Southern Indica Hybrid
'Formosa' Virginia Sanderson CC BY-NC-ND 2.0
Cultivars / Varieties:
  • 'Brilliant'
  • 'Formosa'
  • 'George Tabor'
  • 'G. G. Gerbing'
Tags:
#bees#hummingbirds#evergreen#hardy#sun#showy flowers#deciduous#heat tolerant#wildlife plant#salt tolerant#specialized bees
  • Attributes:
    Genus:
    Rhododendron
    Family:
    Ericaceae
    Wildlife Value:
    Flowers attract humingbirds. Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli.
    Dimensions:
    Height: 6 ft. 0 in. - 12 ft. 0 in.
    Width: 6 ft. 0 in. - 8 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Poisonous
    Shrub
    Leaf Characteristics:
    Deciduous
    Habit/Form:
    Spreading
    Texture:
    Medium
  • Cultural Conditions:
    Soil pH:
    Acid (<6.0)
    Soil Drainage:
    Good Drainage
    Usda Plant Hardiness Zone:
    6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
  • Flowers:
    Flower Color:
    Gold/Yellow
    Pink
    Purple/Lavender
    White
    Flower Size:
    1-3 inches
    Flower Description:
    Large, single; up to 2-3 inches, of multiple colors depending on cultivar
  • Leaves:
    Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Hairs Present:
    No
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Attracts:
    Hummingbirds
    Specialized Bees
    Resistance To Challenges:
    Salt