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Stonewall Jackson Azalea

Rhododendron (roh-do-DEN-dron)

Family: Ericaceae Unknown Shrub (3-15 ft)

‘Stonewall Jackson’ azalea is a woody, deciduous hybrid shrub cultivar in the Ericaceae (blueberry) family. Growing up to 6 feet to 10 feet in height and 5 feet to 8 feet wide, this cultivar is the largest of the "Confederate Series" azaleas which are derived from crossing Rhododendron austrinu m and Rhododendron x 'Hotspur Yellow'. Members of the "Confederate Series" of azaleas were bred to withstand the humidity and heat of southern summers. Clusters of showy fragrant bright orange to red flowers attract pollinators during their spring bloom period. The large orange blooms are similar in appearance to flame azalea. This azalea, as most, needs moist, humus-rich, acidic soil that drains well. Plant in partial to dappled shade, although it can tolerate a few hours of mid to late afternoon sun. Very little pruning is needed except to maintain shape. Use this spring show stopper as an accent or specimen plant or in small groups as an understory planting at the edges of a woodland or in a pollinator garden with partial shade. It works well planted in large containers near a patio where its fragrance can be enjoyed and the containers can be moved indoors in areas where it may not be winter hardy. Use in a colorful shrub border, as a foundation plant, or in naturalized areas. 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. This cultivar is more resistant to mildew. This plant is frequently damaged by deer. 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. For suitable alternatives, see this video created by Charlotte Glen as part of the Plants, Pests, and Pathogens series. 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, 51 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 Rhododendron flammeum Rhododendron minus var. chapmanii

Full plant profile

Growing Conditions
Plant type
Poisonous; Shrub
Life cycle
Woody
USDA zones
6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Dappled Sunlight (Shade through upper canopy all day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0)
Soil drainage
Good Drainage | Moist
Available space
6-feet-12 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 5 ft. 0 in. - 8 ft. 0 in. | Width: 5 ft. 0 in. - 10 ft. 0 in.
Maintenance
Low
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Foliage
Deciduous
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf margin
Entire
Hairs present
No
Leaf detail
Dark green leaves. No fall color.
Flower color
Gold/Yellow; Orange; Red/Burgundy
Flower value
Fragrant; Showy
Flower form
Raceme
Flower shape
Funnel; Trumpet
Flower detail
Flame orange-yellow with red tints funnel to trumpet shaped ruffled flowers with 5 petals and visible stamens and pitsols in the early spring.
Bloom time
Spring
Fruit type
Capsule
Wildlife & Ecology
Native status
Unknown
Wildlife value
Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli.
Attracts
Bees
Food & Medicine
Fruit type
Capsule
Landscape Use
Landscape location
Container; Naturalized Area; Patio; Woodland
Landscape theme
Garden for the Blind; Pollinator Garden
Design feature
Accent; Foundation Planting; Screen/Privacy; Small groups; Specimen
Garden tags
#showy flowers #deciduous shrub #deciduous #orange flowers #problem for dogs #problem for horses #problem for cats #pollinator plant #large flowers #deer browsing plant #container plant #flowers early spring #sensory garden #understory shrub #specimen #naturalized area #humidity tolerant #specialized bees #flowers spring #fragrant flowers #heat tolerant #foundation planting #low maintenance #poisonous #woodland #accent #shrub border #small groups
Problems & Resistance
Insect problems
Azalea Lace Bug; Azalea Plant Bug; Azalea Caterpillar; Azalea Leafminer; Azalea Bark Scale; Azalea Whitefly; Pests of Azalea; Azalea Pest Management Calendar; Arthropod Pests of Azalea
Problems
Poisonous to Humans; Problem for Cats; Problem for Dogs; Problem for Horses
Resistant to
Heat; Humidity
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.