Flame azalea

Rhododendron calendulaceum

Photo/Illustration: 
Courtesy of Sunlight Gardens, www.sunlightgardens.com
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Flame azalea (Rhododendron calendulaceum)
Genus:  Rhododendron
This plant's leaves are mid-green, and softly hairy on both sides. In late midseason, as leaves emerge or just after, this plant bears lax trusses of yellow to dark reddish orange flowers. It grows to 8 feet tall and wide.
Noteworthy Characteristics:  Native of the eastern United States.
Care:  Prefers full sun but may need shade in the South. Grow in moist, fertile, humus-rich acidic soil (pH 4.5 to 5.5) in dappled shade. Plant shallow, as plants are surface rooted and like a mulch covering.
Propagation:  Root semi-ripe cuttings in late summer or autumn. Layer in autumn.
Problems:  Vine weevil, whitefly, leafhoppers, lacebugs, scale, caterpillars, aphids. Powdery mildew, rust, bud blast, leaf gall, petal blight, root rot, and chlorosis (due to insufficient soil acid).

Overview

Height
6 ft. to 10 ft.
Spread
6 ft. to 10 ft.
Light
Full Sun to Part Shade
Moisture
Medium Moisture
Characteristics
Native,
Showy Flowers
Bloom Time
Spring
Flower Color
Salmon,
Red,
Primrose Yellow
Style
Woodland Garden
Seasonal Interest
Spring Interest
Type
Shrubs

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