black iris

Grow in well-drained, neutral to slightly acid loam in full sun or partial shade. Mulch in spring

Remove any dying foliage in autumn, old flower stems can be cut down after flowering. Tall varieties can have their leaf fans trimmed to one third of the total height to reduce wind rock while the plants are establishing

Propagate by division from midsummer to early autumn, plant immediately in flowering positions

Slugs and snails may be a problem, sawflies can damage the leaves

May be affected by aphid borne virus diseases, bacterial soft rot and grey moulds