| Landscape | Best in sunny beds or borders. |
| Propagation | Propagate by division of rhizomes. |
| Cultivation | Grow in full sun in a humusy, well-drained soil. Avoid overhead watering and heavy clay soils. It is a good idea to deadhead spent flowers and remove the flowering stems to ground after bloom. |
| Pests | The largest pest threat is the iris borer. May also be affected by bacterial soft rot and fungal leaf spot. |
| Notable Specimens | Royal Botanical Gardens, Burlington, Ontario, Canada. |
| Habitat | Horticultural origin. |
| Leaf Description | Leaves are sword-shaped and linear. |
| Flower Description | Flowers are dark purple-black with a blue-purple beard. |
