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Alabama Azalea

Rhododendron alabamense (rho-doh-DEN-dron al-uh-bam-EN-see)

Family: Ericaceae Unknown Shrub (3-15 ft)

Alabama azalea is a rounded, woody, deciduous shrub in the Ericaceae (blueberry) family. It is native to Alabama and Georgia. The genus name derives from the Greek words rhodo , which means rose, and dendron , meaning tree. This compact rhododentron grows to a height and width of 4 to 6 feet. Alabama azalea grows in drier woodlands than most of our other native azaleas. Place it in a site with partial shade and well-drained acidic soil with a high content of loam and sand as well as organic matter. Mulch it each year to keep the soil moist and cool. Protect it from afternoon sun, as it can scorch the leaves and the roots may rot if the soil does not drain well. It spreads by underground runners. It has white flowers with a prominent lemon-yellow blotch on the upper petal, and a distinct, lemon fragrance. These flowers support pollinators like bees. Though this plant is frequently damaged by deer, it tolerates damage by rabbits. Propagate this shrub through softwood cutting or layering. Alabama azalea is at home as an understory shrub planted in small groups in woodland, or cottage garden. Consider using in in a shrub border or place it in a location of prominence as a specimen in a pollinator garden or along a walkway or patio where its sweet fragrance can be enjoyed. It is also at home in a meadow or other naturalized area of the landscape. Prune rhododendrons and azaleas after they bloom to preserve the current season's bloom, and allow time for the plant to produce flower buds for next year's bloom. Rhododendrons and azaleas set next year's flower buds by mid to late summer. Insects, Diseases, and Other Plant Problems: Insect problems include aphids, borers, lace bugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips, and whitefly. Diseases include canker, crown rot, root rot, leaf spot, rust, and powdery mildew. While these shrubs remain very popular for landscape use, many cultivars are susceptible to Phytophthora root rot– this leads to leaf loss, reduced vigor, branch dieback, and wilting. Implement good cultural practices first, such as improving drainage with organic matter or berms and avoiding overwatering or overfertilization. However, if you have a site with a history of this disease, consider planting one of the root rot-resistant alternative species listed in the left-hand sidebar. For suitable alternatives, see this video created by Charlotte Glen as part of the Plants, Pests, and Pathogens series. The Clemson Cooperative Extension Home and Garden Information Center has a factsheet on common diseases of rhododendron. VIDEO Created by Elizabeth Meyer for " Trees, Shrubs and Conifers " a plant identification course offered in partnership with Longwood Gardens. More information on Rhododendron .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 59 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Rhododendron arborescens Rhododendron minus var. chapmanii Rhododendron viscosum
Similar, less problematic Abelia x grandiflora Camellia sasanqua Ilex cornuta Rhaphiolepis indica Rhaphiolepis x delacourii

Full plant profile

Growing Conditions
Plant type
Poisonous; Shrub
Life cycle
Woody
USDA zones
7a, 7b, 8a, 8b
Light
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0)
Soil drainage
Good Drainage
Available space
3 feet-6 feet; 6-feet-12 feet
NC region
Coastal; Piedmont
Mature size
Height: 4 ft. 0 in. - 6 ft. 0 in. | Width: 4 ft. 0 in. - 6 ft. 0 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Rounded
Texture
Medium
Foliage
Deciduous
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf margin
Dentate; Entire
Leaf feel
Smooth
Hairs present
No
Leaf detail
Alternate, simple, smooth or toothed margined dark green leaves
Flower color
White
Flower value
Fragrant
Flower form
Raceme
Flower size
3-6 inches
Flower detail
Large white tubular flowers in terminal clusters of 6 to 10 with yellow blotches and long stamens appear in spring; strong lemon scent. Flowers appear before leafout.
Bloom time
Spring
Fruit color
Brown/Copper
Fruit type
Capsule
Wildlife & Ecology
Native status
Unknown
Origin
Alabama and Georgia
Wildlife value
Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli, and bumble bees.
Attracts
Pollinators; Specialized Bees
Food & Medicine
Harvest time
Fall
Fruit type
Capsule
Landscape Use
Landscape location
Meadow; Naturalized Area; Patio; Walkways; Woodland
Landscape theme
Cottage Garden; Garden for the Blind; Pollinator Garden
Design feature
Border; Small groups; Specimen
Garden tags
#deciduous #fragrant leaves #specialized bees #native bees #evergreen #drought tolerant #nectar plant #problem for cats #problem for dogs #problem for horses #bee friendly #rabbit resistant #understory shrub #naturalized area #deer browsing plant #cottage garden #sensory garden #poisonous #patio #wildlife friendly #meadow #woodland #fragrant flowers #small groups #walkway
Problems & Resistance
Insect problems
Aphids on Ornamental Landscape Plants; Caterpillars That Feed on Trees and Shrubs; Rhododendron Borer; Rhododendron Pest Management Calendar; Arthropod Pests of Rhododendron; Pests of Rhododendron
Disease problems
Southern Blight of Herbaceous Ornamentals
Problems
Poisonous to Humans; Problem for Cats; Problem for Dogs; Problem for Horses
Resistant to
Rabbits
Propagation
Layering; Stem Cutting
Poison severity
Low
Poison parts
Bark; Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems
Poison symptoms
While the plants are known to contain toxins, ingestion of moderate amounts of azalea (nectar or leaves) poses little toxic hazard.
Toxic principle
Grayanotoxins
Contact dermatitis
No
Toxicity summary
Low severity poison; parts: Bark; Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems

Planted at Hunnicutt

Nobody’s planted this one yet.