Overview
Rhododendron viscosum aemulans (Vs) is a bushy shrubs in the genus Rhododendron, part of the Ericaceae family, with evergreen foliage. Rhododendron viscosum aemulans (Vs) grows best in partial shade, and tolerates loam soils and acid pH. Its UK hardiness is rated H5. Suggested uses include woodland gardens and containers on shaded patios.
About
Rhododendron viscosum, the swamp azalea, clammy azalea or swamp honeysuckle, is a species of flowering plant in the heath family Ericaceae. A deciduous shrub, it grows to 2.5 m (8.2 ft) tall and broad.
Growing conditions
Best soil and position for Rhododendron
- Sunlight
- Partial shade
- Soil type
- Loam
- Soil pH
- Acid
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Rhododendron viscosum aemulans (Vs) size, habit and characteristics
- Plant type
- Shrubs
- Habit
- Bushy
- Foliage
- Evergreen
- Suggested uses
- Woodland gardens, Containers on shaded patios
Care notes
Pruning and caring for Rhododendron viscosum aemulans (Vs)
- Propagation
- Semi-ripe cuttings, Layering, Grafting
- Pest resistance
- Vine weevil, Rhododendron leafhopper, Pieris lacebug, Scale insects, Caterpillars, Aphids
- Disease resistance
- Powdery mildews, Rhododendron petal blight, Rhododendron bud blast, Silver leaf, Honey fungus
Frequently asked questions
Where is the best place to plant Rhododendron viscosum aemulans (Vs)?
Rhododendron viscosum aemulans (Vs) prefers partial shade. It suits sheltered positions.
What soil does Rhododendron viscosum aemulans (Vs) need?
Rhododendron viscosum aemulans (Vs) grows best in loam soil. It prefers acid soil. Aim for soil that stays moist but well-drained.
Is Rhododendron viscosum aemulans (Vs) hardy in the UK?
Rhododendron viscosum aemulans (Vs) has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Rhododendron viscosum aemulans (Vs)?
Semi-ripe cuttings, Layering, Grafting.
More in the Rhododendron genus
- Rhododendron 'Black Beauty'

- Rhododendron 'Ed Hillary'

- Rhododendron 'Falling Snow'

- Rhododendron 'Karminduft' (A)

- Rhododendron 'Libretto'
- Rhododendron 'Lugano'

- Rhododendron 'Ada Lavleisa'rhododendron 'Ada Lavleisa'
- Rhododendron 'Amarlie Crowden'