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Yellow Flag
Scientific Name: Iris pseudacorus L.
Family: Iridaceae
Yellow Flag (Iris  pseudacorus)
Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 540. Courtesy of Kentucky Native Plant Society.
Recommended Temperature Zone:
sunset: All zones
USDA: 5-9

Sun Exposure: Full sun to light shade

Origin: Europe across to Turkey, Iran and Siberia

Growth Habits: Herbaceous perennial, flower stems can reach up to 6 feet (1.8 m), 18 inches spread (45 cm), spreading rapidly

Watering Needs: Wetland plant, drought resistant, prefers a slightly acid soil

Propagation: Division of rhizome in early fall

Classified non native invasive plant in a number of states in North America.

Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species.

Blooming Habits:
Masses of bright yellow flowers from early Spring through to mid-Summer, the date depending on the latitude.

Fruiting Habits:

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