How to Fertilize hydrangea 'Xian'?
Acid-loving flowering feed every three weeks spring until mid summer

hydrangea 'Xian' · Hydrangea macrophylla 'Xian'
Grow in moist but well-drained, humus rich soil, in a lightly shaded spot with shelter from cold, drying winds. Mulch annually in spring. Soil additives may be required to maintain specific flower colours. See shrubby hydrangea cultivation for more detailed advice
Acid-loving flowering feed every three weeks spring until mid summer