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

hydrangea 'Winter Glow' · Hydrangea anomala 'Winter Glow'
Grow in moist but well-drained, humus rich soil, in partial shade with shelter from cold, drying winds and from late frosts, which may damage young leaf and bud growth. See climbing hydrangea cultivation for detailed advice
Hydrangea shrub feed every four weeks spring through early summer