Blue Flag Iris
Blue Flag Iris

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Blue Flag Iris

Iris versicolor

Growzone: 3-9

As Low As: $22.95

1. Choose Size & Quantity
Size Price Quantity
1 Gallon Pot $22.95
2. Choose Recommended Add-Ons
Product Price Quantity
Espoma Bio-Tone Starter Plus
4 LB Bag
$16.95
Espoma Flower-Tone
4 LB Bag
$16.95

California Residents: This product can not be shipped to California at this time due to shipping restrictions.

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Dormancy Notice: This plant, like many others, enters dormancy or semi-dormancy in the late fall through early spring. *THIS PLANT IS NOT DEAD. It is completely healthy but upon receiving the plant, you may notice it exhibits fewer leaves, discoloration, or complete leaf drop. This is normal and essential to the plant's health. In fact, planting during dormancy promotes root growth, giving your plant a better start for spring, when new foliage will begin to grow.

Blue Flag Iris for Sale Online

Blue Flag Iris or Iris versicolor produces a very robust, dramatic display of swordlike leaves with large, violet-blue flowers that are accented by whitish markings at the base of the sepals. Petals spread out flat making it an attractive place for feeding by hummingbirds. Also known as Blue Flag Iris.


Growing Zone: 3-9
Selling Points: Tolerates wet soil, deer resistant, attracts Butterflies
Mature Height: 24 to 36 inches
Mature Width: 24 to 36 inches
Sunlight: full sun to part shade
Water Requirements: Average to moist soil
This Plants Growzone: 3-9 Blue Flag Iris Hardiness Zone

Additional Information

Growing Native Blue Flag Irises in the landscape

Iris veriscolor, commonly called northern blue flag, is a clump-forming iris that is native to marshes, swamps, wet meadows, ditches and shorelines from Manitoba to Nova Scotia south to Virginia, Ohio, Illinois and Minnesota. It is a marginal aquatic plant that forms a clump of narrow, arching-to-erect, sword-shaped, blue-green leaves (to 24” long and 1” wide). Flowering stalks rise from the clump to 30” tall in late spring, with each stalk producing 3-5 bluish-purple flowers (to 4″ wide) with bold purple veining. Falls (sepals) have a central yellow blotch surrounded by a white zone. Clumps spread slowly by tough, creeping rhizomes. Northern blue flag thrives in wetland habitats frequented by rushes and sedges (the “flag” part of the common name comes from the middle English word flagge meaning rush or reed). Rhizome is poisonous. Grow in medium to wet soils in full sun to part shade. This iris may be grown in up to 2-4” of shallow standing water (muddy bottom or containers), or in moist shoreline soils or in constantly moist humusy soils of a border. Propagate by division after bloom. Wear gloves when dividing the rhizomes. After fall frost, plant leaves may be trimmed back to about 1” above the crown. Will naturalize to form colonies in the wild. Iris versicolor makes an excellent focal point in a small pond or can be used in an area that is too wet for other garden plants. Best grouped in sunny areas of ponds or water gardens. Also may be grown in moist border areas. Genus named for the Greek goddess of the rainbow. Specific epithet means having various colors.


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