How to Prune peony 'Unique'?
Remove spent flowers and cut back foliage in autumn when it dies back

peony 'Unique' · Paeonia 'Unique'
Will grow well in fertile, humus-rich, moist but well-drained soil in full sun or partial shade in a sheltered position. See herbaceous peony cultivation for more details.
Remove spent flowers and cut back foliage in autumn when it dies back