Rhododendron 'Wilgen's Ruby'
A bushy, rounded evergreen shrub with glossy dark green leaves and large round clusters of tubular-shaped dark red flowers appearing in late spring. This variety tolerates full sun
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Size
Ultimate height
1.5–2.5 metresTime to ultimate height
10–20 yearsUltimate spread
1.5–2.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
AcidColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Red | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Ericaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling. Pets (dogs, cats, rabbits, tortoises) Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Rhododendron can be evergreen or deciduous shrubs or trees, with simple leaves, sometimes with a dense colourful indumentum of hairs on the lower side, and funnel-shaped, bell-shaped or tubular flowers that may be solitary or in short racemes
- Name status
Accepted
How to grow
Cultivation
Grow in light dappled shade, in a site sheltered from cold, dry winds and late frosts, in moist but well-drained, humus-rich, acidic soil, preferably between pH4.5 and pH5.5; will also tolerate sun and dry soil; for more advice, see rhododendron cultivation
Propagation
Propagate by heeled semi-ripe cuttings in late summer, by layering in autumn, or by grafting in late winter or late summer
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Low Maintenance
- Banks and slopes
- Flower borders and beds
- Wall side borders
Pruning
Pests
May be susceptible to vine weevil, rhododendron whiteflies, rhododendron leafhopper, lacebugs, scale insects, caterpillars, and aphids
Diseases
May be susceptible to powdery mildews, bud blast, honey fungus, rust, leafy gall, petal blight, silver leaf, Phytophthora root and shoot rots, and, if soil is not sufficiently acidic, lime-induced chlorosis; for more advice, see Rhododendron diseases
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