Vigorous, Iris pseudacorus, commonly known as Yellow Iris, is a herbaceous perennial with eye-catching bright yellow flowers, 4 in. wide (10 cm), adorned with a brown or violet veining on each fall. Sitting atop sturdy, upright, branched stalks, the flowers create a very striking display. Each flower stalk bears up to 4-12 flowers. The foliage of erect, sword-shaped, gray-green leaves is equally attractive and remains good-looking through the entire growing season. Blooming in great abundance from late spring to early summer, the flowers are followed by large seed pods.

• Grows up to 3-5 ft. (90-150 cm). and looks most spectacular when planted in groupings of 6-8 plants. Plants will naturalize easily by spreading rhizomes to form extensive colonies, so site with care.
• Performs best in full sun or part shade, in acidic, moist to wet, humus-rich soils. For maximum flower production, provide full sun exposure and a site with 12 in. of water over its soil (30 cm). Although this plant prefers constant moisture, it grows well in average garden soils, albeit less vigorously.
• A welcomed addition to beds, borders, cottage gardens, city gardens, bog gardens, water gardens, rain gardens or near streams or ponds, where it will provide excellent color contrast. Great choice for moist boggy areas.
• Remove any dying foliage in fall, old flower stems can be cut down after flowering. Remove seed pods before they mature to prevent any undesired self-seeding.
• Virtually disease and pest free. Ignored by deer!
• Propagate by division from midsummer to early fall, plant immediately in flowering positions
• All parts may cause discomfort if ingested. Wear gloves and other protective equipment when handling.
• Toxic to dogs, toxic to cats, toxic to horses.
• Find where this species is invasive in the United States.
• Discover beautiful U.S. native plant alternatives.
• Native to Europe, Africa, Asia