iris 'Benton Lorna'

Grow in well-drained, fertile, neutral to slightly acidic soil in full sun. Do not cover the rhizomes with mulch, or allow other plants to shade them; sun on the rhizomes encourages flowering. Give a high potash feed in spring and divide every three to four years. See also bearded iris cultivation

Cut down old flower stems after flowering, and remove any dying foliage in autumn

Propagate by division of rhizomes after flowering, from midsummer to late summer; for more advice, see dividing irises

May be susceptible to iris sawfly, aphids, leaf miners, slugs, snails, and wireworms

May be susceptible to iris rhizome rot, iris leaf spot, scorch, a rust, and virus diseases; for more advice see iris diseases