How to Prune iris 'Lincoln Imp'?
Remove any dying foliage in autumn, old flower stems can be cut down after flowering

iris 'Lincoln Imp' · Iris 'Lincoln Imp'
Grow in acid or neutral soil in sun or partial shade with a cool root run where the soil is moist but well-drained. Mulch in spring
Remove any dying foliage in autumn, old flower stems can be cut down after flowering