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Blue Flag

Iris Versicolor

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Overview

Iris versicolor, or Blue Flag, is a striking perennial native to North America. Grows to 2–3 feet tall with lance-shaped leaves. It produces vibrant blue to purple flowers in late spring, each with six petal-like parts. Prefers full to partial sun and wet conditions, thriving in zones 3-9. Ideal for rain gardens and waterside plantings. Provides habitat support and attracts pollinators, offering both ecological and aesthetic benefits.

Sun HalfWater Extra in Summer, MediumZones 8–10Type PerennialClimate Mediterranean
Blue Flag (Iris Versicolor) — Iris versicolor, or Blue Flag, is a striking perennial native to North America; prefers full to partial sun and wet conditions

Culture

Sun
Half
Water
Extra in Summer, Medium
USDA zones
8–10

Shape & size

Mature height
2–3 Ft.
Mature width
2–3 Ft.

Classification

Type
Perennial
Family
Iridaceae
Climate
Mediterranean

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Photos (119)

Blue Flag (Iris Versicolor) — scientifically known as Iris versicolor; consider placing them in clusters or drifts for a more natural and visually, image 82
Blue Flag (Iris Versicolor) — blue and lavender and multi-colored flowers in the garden; is a captivating perennial that brings a splash of vibrant, image 73
Blue Flag (Iris Versicolor) — Iris versicolor, or Blue Flag, is a striking perennial native to North America; prefers full to partial sun and wet, image 51
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Iris Versicolor
Photographs by 3 contributors

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