Previous Plant Next Plant

Iris versicolor

Northern Blueflag /

<< PREV Image 1 of 2 NEXT >>

Very robust, dramatic display of boldly veined, sword-like leaves with large, violet-blue flowers. This is a great plant beside a pond in the transition area between water and land.


  • Clump forming iris that thrives along the margin of a pond or stream
  • 3 to 5 violet-blue flowers per stalk in spring
  • Handsome foliage all season long
  • Excellent wetland cover for aquatic and semi-aquatic wildlife

Homeowner Growing and Maintenance Tips

Grow in medium to wet soils in full sun to part shade. This iris may be grown in 2-4" of shallow standing water (muddy bottom or containers), or in moist shoreline soils or in the border in constantly moist, humus-rich soil. Trim leaves back to about 1" above the crown after fall frost.

24-36 Inches


18-24 Inches

USDA Hardiness Zone 3-9

Native Range

Shores swamps and wet meadows; Newfoundland to Manitoba south to Minnesota and Virginia.

Native Trivia

Dragonflies are ancient creatures. Fossil records show these insects were flying more than 300 million years ago, predating dinosaurs by over 100 million years and birds by some 150 million.

"Frogs like to watch the dragonflies perching on this plant, waiting for mosquitoes to eat."

Characteristics & Attributes

Plan Sub Group
  • Medium Perennials
  • Filtered Shade
  • Sun
Soil Moisture Preference
  • Moist
Attracts Wildlife
  • Beneficial insects
Bloom Time
  • Late Spring / Early Summer
Habitat Collection
  • Wet Sun
Foliage Color
  • Green
Native to
  • Connecticut
  • Delaware
  • District of Columbia
  • Idaho
  • Illinois
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • New Hampshire
  • New Jersey
  • New York
  • Ohio
  • Pennsylvania
  • Rhode Island
  • Vermont
  • Virginia
  • Wisconsin