Height: 4 feet
Spread: 5 feet
Sunlight:
Hardiness Zone: 4b
Description:
A red flowering rhododendron that is one of the last red to bloom; is heat and sun tolerant; a tall, deciduous shrub with broad habit; prefers well-drained, cool, highly acidic and organic soil, use plenty of peat moss when planting
Ornamental Features
Vulcan Rhododendron is bathed in stunning clusters of lightly-scented red trumpet-shaped flowers at the ends of the branches from mid to late spring. It has dark green evergreen foliage. The narrow leaves remain dark green throughout the winter.
Landscape Attributes
Vulcan Rhododendron is an open multi-stemmed evergreen shrub with an upright spreading habit of growth. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage.
This is a relatively low maintenance shrub, and should only be pruned after flowering to avoid removing any of the current season's flowers. It has no significant negative characteristics.
Vulcan Rhododendron is recommended for the following landscape applications;
- Accent
- Mass Planting
- General Garden Use
Planting & Growing
Vulcan Rhododendron will grow to be about 4 feet tall at maturity, with a spread of 5 feet. It tends to be a little leggy, with a typical clearance of 1 foot from the ground. It grows at a slow rate, and under ideal conditions can be expected to live for 40 years or more.
This shrub does best in a location that gets morning sunlight but is shaded from the hot afternoon sun, although it will also grow in partial shade. Keep it away from hot, dry locations that receive direct afternoon sun or which get reflected sunlight, such as against the south side of a white wall. It requires an evenly moist well-drained soil for optimal growth, but will die in standing water. It may require supplemental watering during periods of drought or extended heat. It is very fussy about its soil conditions and must have rich, acidic soils to ensure success, and is subject to chlorosis (yellowing) of the foliage in alkaline soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid.
