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Southern Blue Flag Iris

Iris virginica

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Southern Blue Flag Iris (Iris virginica) at America's Best Flowers

Southern Blue Flag Iris flowers

Southern Blue Flag Iris flowers

(Photo courtesy of NetPS Plant Finder)

Height:  3 feet

Spacing:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4b

Other Names:  Southern Blueflag Iris

Description:

A wetland variety, featuring non-fragrant, violet-blue and white flowers with golden signals; an excellent pondside plant, that will also thrive beautifully in a consistently watered garden; quite easy to grow

Ornamental Features

Southern Blue Flag Iris has masses of beautiful violet flag-like flowers with white overtones and a gold flare at the ends of the stems in late spring, which are most effective when planted in groupings. The flowers are excellent for cutting. Its sword-like leaves remain green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Southern Blue Flag Iris is an herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Southern Blue Flag Iris is ideally suited for growing in a pond, water garden or patio water container, and is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Water Gardens
  • Bog Gardens

Planting & Growing

Southern Blue Flag Iris will grow to be about 30 inches tall at maturity, with a spread of 30 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 24 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant does best in full sun to partial shade. As an aquatic plant, it requires a suitable water garden environment and will benefit from special planting and ongoing care practices; consult one of our in-store experts for further details and instructions. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This species is native to parts of North America. It can be propagated by division.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Garden  Bog  Water 
Applications
Flowers  Plant Form 
Ornamental Features

 

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