How to Water Japanese water iris 'Rowden Caesar'?
Keep root zone evenly moist, never waterlogged

Japanese water iris 'Rowden Caesar' · Iris ensata 'Rowden Caesar'
Grow in moist to wet, deep, humus-rich, neutral to acid soil in sun or part shade; it thrives at the margins of ponds or streams
Keep root zone evenly moist, never waterlogged