American Water Iris
This American water iris graces the pond margins with purple-blue flowers with white and purple markings and yellow centres. Broad green foliage grows into attractive clumps, leaves and flowers leaning out over the water for lovely reflections. The tall emergent leaves are useful to pond insects such as emerging dragonflies. Plant in a large container using aquatic soil and covering with pea gravel. Trim decaying foliage in autumn.