About
A large evergreen shrub or small tree, with an upright habit and matt, dark green leaves up to 18cm long. Produces loose clusters of 6-12 broadly funnel-shaped, aromatic, pale pink or lilac pink flowers sometimes fading to white, in mid- to late spring. This species can grow up to 10m high, though it rarely reaches this height in the UK. Introduced from China in 1855 and a parent of many hardy hybrids.
About the 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
Growing conditions
SunlightPartial shade
Soil typeClay, Loam, Sand
Soil pHAcid
Soil moistureMoist but well-drained
AspectNorth-facing, West-facing
ExposureSheltered
UK hardinessH5
Plant details
Plant typeShrubs, Trees
HabitColumnar upright
FoliageEvergreen
Height4-8 metres
Spread4-8 metres
Time to full height5-10 years
Suggested usesCity and courtyard gardens, Cottage and informal garden
Native toFar East
FragranceFlower
ToxicityHarmful 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
Care notes
CultivationGrow in moist but well-drained, humus rich, acidic soil, in partial or dappled shade. Choose a site away from frost pockets and sheltered from strong winds, and do not allow plants to dry out. Mulch annually, ideally with leaf mould. See rhododendron cultivation for more detailed advice
PruningMinimal pruning required, see pruning group 8 (evergreens)
PropagationPropagate by semi-ripe cuttings in late summer, by layering in autumn, or by grafting in winter
Pest resistanceMay be susceptible to vine weevil, rhododendron and azalea whitefly, rhododendron leafhopper, pieris lacebug, scale insects, caterpillars and aphids
Disease resistanceMay be susceptible to powdery mildews, honey fungus, silver leaf and Phytophthora, as well as more specific Rhododendron diseases