tall bearded iris

The tall bearded iris needs regular watering throughout its growing season. It should be watered about 1-2 times each week, in the morning, so that the soil is damp to the touch. Water deeply, allowing the water to penetrate the soil down to the plant's roots. During hot weather, water more often. Once the irises are done blooming, they should be given less water to prepare them for dormancy.

Tall bearded iris require full sun for maximum growth and blooming. They will grow in part sun, but blooming and foliage may be compromised. When grown in full sun, iris should receive at least 6 to 8 hours of direct sunlight each day. In general, make sure your iris receives the most sunlight possible, while protecting them from extreme heat in summer in certain climates.

Tall bearded iris (Iris 'Midnight Fragrance') should be pruned twice a year. It should first be pruned in early summer, after flowering has ended. At this point, the foliage should be cut back to about 1-third its original height. Secondly, you should prune the plant in late fall, shortening the foliage and removing any dead or dying foliage. The amount of foliage that is removed will depend on the individual plant, but it should be no more than 1-third.