Iris x robusta ‘Gerald Darby’

A clump-forming, rhizomatous, deciduous perennial which has arching, strap-shaped, grey-green leaves. In spring, purple-flushed stems bearing veined, yellow- and white-marked, violet-purple flowers are borne.

Grow in well-drained, neutral to slightly acid soil in full sun. It will reach a height of 1.2m and a spread of 75cm.