Korolkov iris

Grow in very well-drained soil, in full sun, and with the top surfaces of the rhizomes exposed so that they get baked in summer sun, which encourages flowering; best grown in a bulb frame in containers using gritty, free-draining compost, and kept dry during late summer and winter; may be grown outside in a well-drained sunny site on a bank or in front of a sunny wall, if given protection from heavy winter rain

Remove old flower stems after flowering, and any dying foliage

Propagate by seed, or by division of rhizomes after flowering; for more advice, see dividing irises

May be affected by iris sawfly, aphids, leaf miners, slugs, snails, and wireworms

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