Larger Blue Flag (Iris versicolor)-Hort Answers - University of Illinois Extension

Larger Blue Flag
Iris versicolor

3 pictures total.

Larger Blue Flag

Features

Purple iris flowers.

Culture

Full sun; moist to wet sites.

Mature Height

2-3 Feet

Native To:

Illinois
Michigan
Ohio
Wisconsin

USDA Hardiness Zone

3 - 8

Bloom Color

Purple

Bloom Season

May - July

Soil Conditions

Moist, Well-Drained
Wet

Exposure/Light Requirements

Full Sun

Pests and Problems

Environmental Damage

Additional pests and problems that may affect this plant:

Iris borer, thrips and viral diseases are possible.

Additional Notes

Found in wet meadows. Will spread by rhizomes and by self seeding.