Overview
Rhododendron ungernii 'Rachel Foster' is a bushy shrubs in the genus Rhododendron, part of the Ericaceae family, with evergreen foliage. Rhododendron ungernii 'Rachel Foster' 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 ungernii 'Rachel Foster' is a bushy evergreen cultivar within the Rhododendron genus, which includes both evergreen and deciduous shrubs or trees. This cultivar thrives in partial shade with a preference for east or west-facing, sheltered aspects. It grows best in moist but well-drained, acidic loam soil. Suitable for woodland gardens or containers on shaded patios, 'Rachel Foster' is hardy to UK zone H5 and offers interest in both spring and winter seasons. Cultivation involves mulching with leaf mould and propagation can be achieved through semi-ripe cuttings, layering, or grafting.
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 ungernii 'Rachel Foster' 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 ungernii 'Rachel Foster'
- 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 ungernii 'Rachel Foster'?
Rhododendron ungernii 'Rachel Foster' prefers partial shade. It suits sheltered positions.
What soil does Rhododendron ungernii 'Rachel Foster' need?
Rhododendron ungernii 'Rachel Foster' grows best in loam soil. It prefers acid soil. Aim for soil that stays moist but well-drained.
Is Rhododendron ungernii 'Rachel Foster' hardy in the UK?
Rhododendron ungernii 'Rachel Foster' 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 ungernii 'Rachel Foster'?
Semi-ripe cuttings, Layering, Grafting.
More in the Rhododendron genus
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- Rhododendron 'Libretto'
- Rhododendron 'Lugano'

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