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

hydrangea 'Koki' · Hydrangea aspera 'Koki'
Grow in moist but well-drained, humus rich soil, in a lightly shaded spot with shelter from cold, drying winds. Mulch annually in spring. See shrubby hydrangea cultivation for more detailed advice
Hydrangea shrub feed every four weeks spring through early summer