Iris pseudacorus (Yellow Flag Iris)

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Beardless yellow wetland iris that can spread aggressively if left unchecked. Blooms in late spring to early summer, producing 4 to 12 blooms on each stalk. Grows in a clump up to 5 feet tall with a spread of up to 2.5 feet. Prefers full sun to part shade in medium to wet soil. Show more