Southern Pinxter Azaelea Rhododendron canescens
Other Common Name(s):
- Phonetic Spelling
- rho-doh-DEN-dron kan-ESS-senz
- This plant has high severity poison characteristics.
- See below
- Description
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Rhododendron canescens, commonly called mountain azalea, Piedmont azalea, hoary azalea or Florida pinkster, is a large deciduous shrub that is native to moist woods, swamp margins and along streams from North Carolina to Florida west to Tennessee, Arkansas and Texas. It typically grows to 6-8’ tall in cultivation, but less frequently may grow to 10-15’ tall. Its bark is gray to reddish/brown and finely shredded.
This plant is some times stoloniferous (spread by runners).
Regions: Coastal plains
Seasons of Interest:
Leaf: Fall Blooms: Early spring/spring Nut/Fruit/Seed: Fall
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 soil does not drain well. A healthy plant in the right place with proper maintenance should have few problems.
VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers" a plant identification course offered in partnership with Longwood Gardens.
- Profile Video:
- See this plant in the following landscape:
- Palm House and Gardens
- Cultivars / Varieties:
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- 'Varnado'
- 'Varnado Pink'
- 'Varnado'
- 'Varnado', 'Varnado Pink'
- Tags:
- Cultivars / Varieties:
-
- 'Varnado'
- 'Varnado Pink'
- 'Varnado'
- 'Varnado', 'Varnado Pink'
- Tags:
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Attributes:
- Genus:
- Rhododendron
- Species:
- canescens
- Family:
- Ericaceae
- Life Cycle:
- Woody
- Distribution:
- North Carolina to Florida west to Tennessee, Arkansas and Texas
- Wildlife Value:
- Hummingbirds and swallowtail butterflies are attracted to the blooms.
- Dimensions:
- Height: 6 ft. 0 in. - 15 ft. 0 in.
- Width: 6 ft. 0 in. - 10 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Native Plant
- Poisonous
- Shrub
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Multi-trunked
- Texture:
- Medium
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Cultural Conditions:
- Light:
- Dappled Sunlight (Shade through upper canopy all day)
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- High Organic Matter
- Soil pH:
- Acid (<6.0)
- Soil Drainage:
- Good Drainage
- Moist
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 5a, 5b, 6b, 6a, 7a, 7b, 8a, 8b, 9b, 9a
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Fruit:
- Display/Harvest Time:
- Fall
- Fruit Type:
- Capsule
- Fruit Description:
- Woody, elongated capsules. Displays from September to October.
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Flowers:
- Flower Color:
- Pink
- White
- Flower Value To Gardener:
- Fragrant
- Showy
- Flower Bloom Time:
- Spring
- Flower Shape:
- Funnel
- Flower Size:
- 1-3 inches
- Flower Description:
- The Piedmont azalea features clusters (5-9 flowers per cluster) of fragrant, funnel-shaped, pink (infrequently white) flowers (1-2” long) in early spring as the foliage begins to emerge. Pistil and stamens of each flower protrude well beyond the corolla in an upward arch. It has a delicate sweet fragrance. Blooms from March to May.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Red/Burgundy
- Deciduous Leaf Fall Color:
- Red/Burgundy
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Elliptical
- Obovate
- Leaf Margin:
- Serrate
- Hairs Present:
- Yes
- Leaf Length:
- 3-6 inches
- Leaf Description:
- The Piedmont azalea has obovate to elliptic, dull green leaves (to 3” long) which are gray-pubescent (canescent) beneath. The leaves, which are alternate and simple with a finely toothed margin, have rusty red fall color.
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Bark:
- Bark Color:
- Light Brown
- Light Gray
- Red/Burgundy
- Surface/Attachment:
- Shredding
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Landscape Location:
- Houseplants
- Naturalized Area
- Woodland
- Landscape Theme:
- Butterfly Garden
- Pollinator Garden
- Attracts:
- Bees
- Butterflies
- Hummingbirds
- Pollinators
- Small Mammals
- Specialized Bees
- Problems:
- Poisonous to Humans
- Problem for Cats
- Problem for Dogs
- Problem for Horses
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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
- Seeds
- Stems
