How to Fertilize Hydrangea macrophylla 'Rheinland'?
Hydrangea feed in spring and again early summer

Hydrangea macrophylla 'Rheinland' · Hydrangea macrophylla 'Rheinland'
Grow in any moist but well-drained soil in partial shade or grow in sun if soil remains reliably moist. See shrubby hydrangea cultivation for more detailed advice
Hydrangea feed in spring and again early summer