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Slender Blue Flag

Iris prismatica

Slender blue flag is a graceful, narrow-leaved iris of coastal marshes and wet meadows, with delicate blue-violet flowers on slim stems, fine for bog and rain gardens.

Family

Iridaceae

Type

wildflower

Lifespan

perennial

Height

1–3 ft

Spacing

1–1.5 ft apart

Light

part shade

Soil moisture

moist

Soil pH

acidic

Bloom

May, June, July

Bloom colors

blue

Wildlife value

pollinators, hummingbirds, butterflies

Landscape uses

border, erosion control, naturalizing

Native states

AL, CT, DE, GA, MA, MD, ME, NC, NH, NJ, NY, PA, RI, SC, TN, VA