How to Water hydrangea 'Trebah Silver'?
Consistently moist root zone, add extra water during warm dry weather

hydrangea 'Trebah Silver' · Hydrangea macrophylla 'Trebah Silver'
Best grown in moist but well-drained soil in part shade although tolerant of sun if soil remains moist. See shrubby hydrangea cultivation for more detailed advice
Consistently moist root zone, add extra water during warm dry weather