Iris versicolor - Blue Flag (photo credit: Growing Colors)

Perennials

Iris versicolor

Blue Flag

Iris veriscolor, commonly called Blue Flag, is a clump-forming iris that grows in marshes, swamps, and ditches. Forms a clump of narrow, arching-to-erect, sword-shaped, blue-green leaves. Flowering stalks rise from the clump to 30” tall in late spring, with each stalk producing 3-5 bluish-purple flowers. Rhizome is poisonous so use gloves when handling.

Blue Flag Growing and Maintenance Tips:

Grow in medium to wet soils in full sun to part shade. This iris may be grown in shallow standing water (muddy bottom or containers), in moist shoreline soils, or in constantly moist soils of a border. 

Height:

24-36 in

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Spread:

24-30 in

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Hardiness Zone:

3 - 9

Characteristics & Attributes for Iris versicolor

Exposure
Sun
Partial Shade
Soil Moisture Preference
Average
Moist
Wet
Critter Resistance
Deer Resistant
Season of Interest (Flowering)
Summer
Season of Interest (Foliage)
Fall
Spring
Summer
Attributes
Mass Planting
Bog
Border or Bed
Cut Flower
Great Foliage
Great Companion Plants for Iris versicolor
Loosestrife Loosestrife (Lythrum virgatum 'Morden's Gleam')
Milkweed, Swamp Milkweed, Swamp (Asclepias incarnata )
Similar Plants to Iris versicolor
Siberian Iris Siberian Iris (Iris sibirica 'How Audacious')
Siberian Iris Siberian Iris (Iris sibirica 'Caesar's Brother')
Sweet Iris Sweet Iris (Iris pallida 'Albo-Variegata')
Copper Iris Copper Iris (Iris fulva )