How to Prune iris 'Lion King'?
Foliage dies down naturally after flowering (summer dormant) so just pull away the foliage once dead and straw-brown

iris 'Lion King' · Iris 'Lion King'
Plant in well-drained soil in a sunny position. See bulb iris cultivation for more information
Foliage dies down naturally after flowering (summer dormant) so just pull away the foliage once dead and straw-brown