How to Fertilize hydrangea 'Snowcap'?
Hydrangea feed in spring and again early summer

hydrangea 'Snowcap' · Hydrangea heteromalla 'Snowcap'
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 feed in spring and again early summer