Yellow Flag Iris

Iris pseudacorus, commonly known as the yellow flag, is a vigorous herbaceous perennial native to Europe, Asia, and Africa. It features striking sword-shaped, gray-green foliage and bright yellow flowers with distinct violet or brown veining. This aquatic or marginal plant thrives in wet soils, boggy areas, and shallow water, often forming large, dense colonies. While valued for its ability to treat water and attract pollinators, it is considered invasive in many regions due to its aggressive growth via rhizomes and seeds.