How to Prune masterwort 'Moulin Rouge'?
Deadhead before seed is ripe to prevent self-seeding

masterwort 'Moulin Rouge' · Astrantia 'Moulin Rouge'
Best grown in moist, fertile, humus-rich soil in sun or partial shade. As with most perennials, it will benefit from mulching. Makes a good cut flower
Deadhead before seed is ripe to prevent self-seeding