How to Prune Japanese water iris?
Remove any dying foliage in autumn, old flower stems can be cut down after flowering
Japanese water iris · Pruning
Japanese water iris · Iris ensata
Also known as: Japanese flag; Japanese iris; sword-leaved iris
Grow in moist to wet, deep, humus-rich, acid soil; it thrives at the margins of ponds or streams
Watering: Keep root zone evenly moist, never waterloggedSunlight: Full shade · Partial shadeHarmful if eaten. Wear gloves and other protective equipment when handling