How to Propagate Hydrangea macrophylla Magical Ruby Red ('Kolmaru')?
Propagate by softwood cuttings in early summer or hardwood cuttings in winter

Hydrangea macrophylla Magical Ruby Red ('Kolmaru') · Hydrangea macrophylla Magical Ruby Red ('Kolmaru')
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 further advice
Propagate by softwood cuttings in early summer or hardwood cuttings in winter