How to Fertilize hydrangea 'Trebah Silver'?
Hydrangea shrub feed every four weeks spring through early summer

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
Hydrangea shrub feed every four weeks spring through early summer