How to Prune Japanese clethra?
Cut flowered growth back to strong young shoots below, removing up to a fifth of old stems near the base each year. Prune immediately after flowering.
Japanese clethra · Pruning
Japanese clethra · Clethra barbinervis
Grow in fertile humus-rich moist but well-drained acid soil, best in part or dappled shade
Watering: Moderate regular watering, avoid prolonged drought or waterloggingSunlight: Full shade · Partial shadeInformation to be completed