How to Propagate tall bearded iris 'Benton Olive'?
Propagate by division of the rhizome shortly from mid-summer to early autumn. See dividing irises

tall bearded iris 'Benton Olive' · Iris 'Benton Olive'
Plant rhizomes just above soil level. Thrives in a sunny position, in ideally neutral soil with good drainage. See bearded iris cultivation
Propagate by division of the rhizome shortly from mid-summer to early autumn. See dividing irises