About
Rhododendron 'Doctor H.C. Karl Forster' is an upright evergreen rhododendron to 150�250 cm with a compact framework of bold leaves. Domed trusses of broad-petalled flowers emerge in mid to late spring � a striking and rewarding cultivar for a sheltered, acid-soil 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.
Plant details
Suggested usesWoodland gardens, borders, specimen
Care notes
CultivationMoist, well-drained acidic soil in dappled shade. Mulch with leaf mould
PruningDeadhead spent trusses. Remove dead wood only
PropagationLayer branches or semi-ripe cuttings in late summer
Pest resistanceGenerally pest-free. Vine weevil may target containers
Disease resistancePhytophthora in wet soils. Ensure good drainage