Iris prismatica

Slender Blue Flag, Beardless Iris, Louisiana Iris

Family: Iridaceae Iris


Type Perennial
USDA Hardiness range 3A - 9A
Exposure Partial shade to full sun
Bloom color Blue, purple
Bloom time Early Summer to Early Fall
Water needs Moist to wet
Landscape uses Border, erosion control, ground cover, massing, rock garden, woodland garden
Height 24" to 36" / 60cm to 90cm
Spread n/a
Growth rate Moderate
Leaf color Green
Fruit color n/a
Soil pH requirements Neutral
Soil type Loamy
Form Spreading or horizontal
Attributes and features Native to North America