How to Prune peony 'Red Charm'?
Remove dead flowers as they fade, then cut plant back as the foliage dies down at the end of summer

peony 'Red Charm' · Paeonia 'Red Charm'
Best in a deep, fertile, humus-rich soil that is moist but well-drained in a sheltered position in full sun or partial shade. May need support (see staking perennials). Long-lived but resents disturbance. See herbaceous peony cultivation for further information.
Remove dead flowers as they fade, then cut plant back as the foliage dies down at the end of summer