How to Prune Geranium phaeum 'Joseph Green'?
Cut back after flowering to encourage the production of fresh leaves and flowers. Remove old dead foliage in spring before growth commences

Geranium phaeum 'Joseph Green' · Geranium phaeum 'Joseph Green'
Grow in moderately fertile, well-drained soil in sun or part shade but most soils (unless waterlogged) are tolerated. Especially good in damp shade
Cut back after flowering to encourage the production of fresh leaves and flowers. Remove old dead foliage in spring before growth commences