Blue Flag Iris

The Blue Flag Iris (Iris versicolor) is a captivating perennial known for its striking, intricate flowers and ability to thrive in wetland environments. This North American native plant adds interest to waterside landscapes, rain gardens, and other moist areas, providing visual appeal with its unique blooms and sword-like foliage. The Overall Plant The Blue Flag Iris is a robust, clump-forming perennial that typically reaches heights of 2-3 feet and spreads about 2-3 feet wide. Its slender, sword-like leaves create an attractive, vertical accent in the garden, while its rhizomatous root system helps to stabilize soil in wet areas. The plant is well-suited for moist to wet environments, such as the edges of ponds, streams, and marshes, but it can also tolerate average garden conditions when provided with consistent moisture. This versatile plant is hardy in USDA zones 3-9, making it suitable for a wide range of climates. It prefers full sun to part shade, with optimal flowering occurrin