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northern blue flag

northern blue flag

Iris versicolor

perennialβ›… part shadeπŸ’§πŸ’§πŸ’§ high waterZone 3a – Zone 9b

A native wetland iris with striking blue-purple flowers and sword-like foliage that adds vertical interest to bog gardens and water features. Thrives in consistently moist to wet conditions and is excellent for naturalizing along pond edges.

Overview

Form
Upright
Growth Rate
moderate
Size
1.5–3β€² tall Γ— 1–2β€² wide
Dormancy
deciduous

Tolerances & Soil

Zone 3aZone 9b
1471013
ColderWarmer
Zone range: Zone 3a to Zone 9b

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummer

Succession Role

early successionalmid successional

Native to the United States

Native Range

Eastern North America

Native to: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Maryland, Delaware, Virginia, West Virginia, Ohio, Michigan, Indiana, Illinois, Wisconsin, Minnesota, Iowa, Missouri

Function & Care

wildlife benefiterosion controlpollinator nectary

Establishment & Care

Establishment
easy
Maintenance
low
Propagation
seed, division