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

iris 'Andalou' · Iris 'Andalou'
Grow in well-drained neutral to alkaline soil in full sun; acid soil is tolerated if reliably well-drained. See bearded iris cultivation
Remove any dying foliage in autumn, old flower stems can be cut down after flowering