How to Prune Geranium × cantabrigiense 'Harz'?
Remove flowered stems and old leaves to encourage the production of fresh leaves and flowers

Geranium × cantabrigiense 'Harz' · Geranium × cantabrigiense 'Harz'
Thrives in moderately fertile, well-drained soil in full sun or partial shade, but will tolerate most soils unless waterlogged
Remove flowered stems and old leaves to encourage the production of fresh leaves and flowers