Japanese water iris

Japanese water iris should be watered frequently, but not too much. During the spring and summer months, soak the soil around the plant until it is fully saturated. Allow the top 2 inches of soil to dry before watering again. During fall and winter when the plant is dormant, reduce watering to once every 10-14 days. More frequent watering during this time can cause the roots to rot.

Japanese water iris (Iris ensata) is a species of rhizomatous aquatic plants native to East Asia. This plant thrives in partial sunlight, receiving up to 6 hours of direct sunlight per day. It is recommended that these plants receive some morning sunlight but must be shielded from harsh afternoon sun. During the spring and summer, when days are longer, Japanese water iris can tolerate more hours of direct sunlight but should be protected from the direct rays in the afternoon heat. Once established, they will benefit from additional sunlight. In winter, when days are shorter, some afternoon sun can be beneficial as it contributes to the plants dormancy and can help them to get through the cold season.

Japanese water iris (Iris ensata) should be pruned back to a height of 2-4 inches in mid-August. This will help to promote new growth and prevent the plant from getting too tall. As blooming begins to fade, the flower stalks can be cut back to the foliage level. In areas with mild winters, this species of iris can remain in the ground. However, in colder climates it should be lifted before the first frost and stored in a frost-free environment. In the late spring or early summer, it should be planted back outside and should be pruned back once again to 2-4 inches.