Image: César Andrés Castillo (Unknown) via iNaturalist
Exposurepartial sun
Watermoderate
Typeshrub
Distribution
Rhododendron calendulaceum
flame azalea
Flower Colors
Description
A deciduous azalea, usually to about 2.5m high in cultivation, though occasionally to 5m in its native habitat. An upright, loosely branching habit and elliptic, dark green leaves that turn orange and red in autumn. Young shoots are covered with fine bristly hairs. Produces clusters funnel-shaped flowers, in vivid shades of yellow, orange and red, in late spring and early summer
Mature Height
2.5m
Mature Spread
2.5m
Plant Characteristics
Foliage
Deciduous
Growth Habit
UprightSpreading
Growth Speed
Moderate · 0.3 m/yr
Soil Texture
ClayLoamSand
Soil pH
Acid
Soil Moisture
Moist but well-drained
Hardiness (RHS)
H8
Hardiness (USDA)
Zones 5-7
Flowering Season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Key Features
City and courtyard gardensCottage and informal gardenFlower borders and bedsWall side borders