About
Rhododendron annae is a medium to large evergreen shrub to 2 m or more, with long, narrow, leathery, dark green leaves. In late spring and early summer, it produces loose clusters of bell-shaped, white to pale-pink flowers, sometimes with purple spots on the upper petals. A handsome and ornamental species for a sheltered, acid-soil woodland garden.
About the genus
Rhododendron are evergreen or deciduous shrubs and trees with simple leaves and funnel-shaped, bell-shaped or tubular flowers � solitary or in short racemes � in a vast range of colours. They include azaleas and are essential shrubs for sheltered, moist, acid-soil woodland gardens.
Growing conditions
SunlightPartial shade
Soil typeClay, Loam, Sand
Soil pHAcid
Soil moistureMoist but well-drained
AspectNorth-facing, West-facing
ExposureSheltered
UK hardinessH6
Plant details
Plant typeShrubs
HabitSpreading branched, Columnar upright
FoliageEvergreen
Height1.5-2.5 metres
Spread1.5-2.5 metres
Time to full height5-10 years
Suggested usesCity and courtyard gardens, Cottage and informal garden, Patio and container plants
Native toChina
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; although hardy, this species may be more susceptible than others to flower damage from late frosts. Shelter 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