Iris sanguinea (Blood Iris)
This beautiful species of Siberian Irises grows two to three feet tall, spreading rapidly in water, but it can also be grown out of water, in regular garden soil, where it will grow less aggressively. These plants were grown from seeds labeled "Kamayama" purchased at the annual SIGNA seed exchange a couple of years ago. They should be this deep purple color and, frankly, I can't wait. Zones 4-9.