Yellow Iris Yellow Flag Iris (Iris pseudacorus) is a stunning perennial that showcases large, golden-yellow flowers rising above tall, sword-shaped green foliage. Blooming in late spring to early summer, this iris adds a bold splash of color to wetland areas and garden ponds. Known for its resilience, the Yellow Iris thrives in moist soils and can even tolerate shallow standing water, making it perfect for water gardens and naturalized landscapes. Its vibrant blossoms attract butterflies and pollinators while the dense foliage provides striking vertical texture. Large golden-yellow blooms in late spring to early summer Tall, upright, sword-like foliage ☀️ Full Sun to Partial Shade Mature Size: 3–5 ft. tall, 2–3 ft. wide Attracts pollinators Thrives in wet soil and pond edges Excellent for water gardens, wetlands, and naturalized settings Note: Plant in consistently moist soil or at the edges of ponds. Can spread vigorously; ideal for naturalized areas but may require control in smaller gardens. Growing Zones: 4–9 outdoors Mature Height: 3–5 ft. Sunlight: Full Sun to Partial Shade Mature Width: 2–3 ft. Botanical Name: Iris pseudacorus Growth Rate: Fast Bloom Time: Late Spring to Early Summer Type: Perennial Iris (Water-loving) FAQ's Where does the Yellow Iris grow best? It thrives in moist to wet soils and is ideal for planting along pond edges, streams, or water gardens. How tall does the Yellow Iris grow? The Yellow Iris can grow 3–5 feet tall, making it a dramatic vertical accent in gardens. Does the Yellow Iris spread quickly? Yes, it can spread vigorously in wet soils, making it great for naturalized landscapes but requiring control in smaller gardens. Is the Yellow Iris pollinator-friendly? Yes, its vibrant flowers attract butterflies and other pollinators to the garden. Can the Yellow Iris grow in standing water? Yes, it tolerates shallow standing water and is perfect for the edges of ponds or streams.
