How to Propagate great white rhododendron?
Propagate by seed when ripe, or semi-ripe cuttings in late summer, layering in autumn or grafting in late summer or late winter
great white rhododendron · Propagation
great white rhododendron · Rhododendron decorum
Grow in moist but well-drained, leafy, humus-rich acid soil in part shade with shelter; see rhododendron cultivation
Watering: Keep acidic root zone evenly moist, never leaving waterlogged soilSunlight: Full sun · Partial shadeHarmful if eaten. Wear gloves and other protective equipment when handling