What Are the Moisture Requirements for iris 'Royal Contrast'?
Well drained

iris 'Royal Contrast' · Iris 'Royal Contrast'
Grows best in well-drained, fertile soil in full sun. For maximum flower set, bearded iris rhizomes need to be warmed by the sun. Plant with the rhizome just above the soil to maximise exposure to the sun and make sure that there is not too much competition from surrounding plants
Well drained