Iris versicolor is also commonly known as the blue flag, harlequin blueflag, larger blue flag, northern blue flag, and poison flag, plus other variations of these names, and in Britain and Ireland as a purple iris.
It is a marginal aquatic plant that forms a clump of narrow, arching-to-erect, sword-shaped, blue-green leaves. Flowering stalks rise from the clump in late spring, with each stalk producing 3-5 bluish-purple flowers.
*above specification are indicative only. actual dimensions may vary by +-10%
Blue flag, harlequin blueflag, larger blue flag, northern blue flag
Maximum Reachable Height
2 to 2.50 feet
May to July
Easy to grow
Planting and care
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.
Rhizome is poisonous.
Iris versicolor care
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), or in moist shoreline soils or in constantly moist humusy soils of a border.
Full sun to part shade
Medium to wet
Medium wet, acidic, well-drained soil
22 degree C
Apply any organic fertilizer
Iris versicolor special feature
Best grouped in sunny areas of ponds or water gardens. Also may be grown in moist border areas.
Iris versicolor uses
The plant is used for an ornamental purpose
It generally keeps indoor in the living room and in terrace area
Frequently Asked Questions
What is another name for a Iris versicolor ?
Iris versicolor is commonly known as Blue flag, harlequin blueflag, larger blue flag, northern blue flag
How tall do Iris versicolor grow?
On average Iris versicolor grows 2 to 2.50 feet
What color are Iris versicolor ?
A Iris versicolor plant bears flowers of color Blue, Purple
When Iris versicolor blooms?
With enough light, Iris versicolor may produce Blue, Purple flowers in May to July
How hard is Iris versicolor to grow?
A Iris versicolor is Easy to grow
How much sunlight does a Iris versicolor need?
A Iris versicolor prefers Full sun to part shade
How much water does a Iris versicolor need?
A Iris versicolor prefers watering Medium to wet
What kind of soil does a Iris versicolor need?
A Iris versicolor prefers Medium wet, acidic, well-drained soil
What temperature does a Iris versicolor like?
A Iris versicolor prefers 22 degree C
How often should I fertilize my Iris versicolor ?
To encourage Iris versicolor growth, Apply any organic fertilizer