How to Water tall bearded iris 'Benton Primrose'?
Keep soil moderately moist in growth, slightly drier after flowering

tall bearded iris 'Benton Primrose' · Iris 'Benton Primrose'
Plant in full sun in well-drained soil, and with the top surfaces of the rhizomes exposed so that they bake in summer sun, which encourages flowering. See also bearded iris cultivation
Keep soil moderately moist in growth, slightly drier after flowering