How to Prune iris 'Hot'?
Cut down old flower stems after flowering, and remove any dying foliage in autumn

iris 'Hot' · Iris 'Hot'
Plant in full sun in well-drained soil, and with the top surfaces of the rhizomes exposed so that they get baked in summer sun, which encourages flowering. See also bearded iris cultivation
Cut down old flower stems after flowering, and remove any dying foliage in autumn