Blue flag
Iris versicolor
Hardiness: Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9
Plant type: Herbaceous Perennial
Height: 2'-2.50'
Spread: 2'-2.50'
Sun: Part Shade, Part Sun, Full Sun
Water: Medium, High
Bloom time: May, June
Bloom color: Violet blue
Soil: Moist, organically rich soils, Acid (<7pH).
Other notes: Named after middle English word flagge meaning reed