How to Prune iris 'Beverly Sills'?
No pruning required. Cut back faded flower stems after flowering, and remove withered leaves in late winter or early spring.

iris 'Beverly Sills' · Iris 'Beverly Sills'
Grow in well-drained, fertile, neutral to slightly acid soil in full sun. Plant rhizomes just above soil level. See bearded iris cultivation
No pruning required. Cut back faded flower stems after flowering, and remove withered leaves in late winter or early spring.