Iris hexagona, commonly known as Dixie Iris, is a rhizomatous perennial herb native to wetlands, marshes, and the edges of ponds and streams in the southeastern United States. It features long, bright green leaves and a long, thin stem that supports small groups of showy flowers in shades of blue, ranging from violet to bluish-purple to lavender. The Dixie Iris typically flowers in spring, and after flowering, it produces a seed capsule in early summer. The flowering stem grows to a height of 30–90 cm (12–36 inches).

The Dixie Iris is valued for its striking blue flowers and is often used in water gardens or as a border plant near bodies of water. It requires at least 6 hours of full sunlight per day and thrives in moist, acidic soils (pH of 6.5) with high organic content and fertility. The plant has a high moisture requirement during the growing season to flower prolifically. New leaves emerge in autumn, which may suffer from heavy frost in winter. To prevent rhizomes from floating away when planted in water, they should be anchored. In borders, a mulch is recommended to retain soil moisture and protect rhizomes from sunburn. Dixie Iris is considered hardy to −15 °C (5 °F). Cultivation generally favors full sun to part shade, with medium to high water requirements, and soils with slow drainage.CC BY-SA 4.0