Overview
Rhododendron 'Siltcoos Sunrise' is a bushy shrubs in the genus Rhododendron, part of the Ericaceae family, with evergreen foliage. Rhododendron 'Siltcoos Sunrise' 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 'Siltcoos Sunrise' is a bushy evergreen cultivar of the Rhododendron genus, which includes both evergreen and deciduous shrubs or trees with simple leaves and funnel-shaped, bell-shaped, or tubular flowers. This cultivar thrives in partial shade, ideally in east- or west-facing, sheltered positions with moist but well-drained acidic loam soil. Hardy to UK zone H5, it is suitable for woodland gardens or containers on shaded patios. 'Siltcoos Sunrise' is best grown in dappled shade with mulching of leaf mould and can be propagated by semi-ripe cuttings, layering, or grafting. It offers interest in both spring and winter seasons.
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 'Siltcoos Sunrise' 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 'Siltcoos Sunrise'
- 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 'Siltcoos Sunrise'?
Rhododendron 'Siltcoos Sunrise' prefers partial shade. It suits sheltered positions.
What soil does Rhododendron 'Siltcoos Sunrise' need?
Rhododendron 'Siltcoos Sunrise' grows best in loam soil. It prefers acid soil. Aim for soil that stays moist but well-drained.
Is Rhododendron 'Siltcoos Sunrise' hardy in the UK?
Rhododendron 'Siltcoos Sunrise' 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 'Siltcoos Sunrise'?
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'