'Red Velvet Elvis' Louisiana bog iris produces large ruby red flowers accented with mauve standards. A hummingbird favorite. As with all Louisiana iris, they can be grown in slightly moist soil or in shallow standing water in water gardens or in any full sun to part shade area. They like slightly acidic to neutral soil. Divide only in fall. Wonderful filters for moving areas of bio filtration streams or shallow half inch to two inch deep pea size gravel filters with moving water.