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ornamental grass

Blue Hair Grass

Koeleria glauca

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Blue Hair Grass (Koeleria glauca) at The Barn Nursery and Landscape Center

Blue Hair Grass flowers

Blue Hair Grass flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  18 inches

Flower Height:  24 inches

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4

Other Names:  June Grass, Smooth Junegrass

Description:

This lovely grass is grown for its attractive fine blue-green foliage, topped with silvery white blooms in summer; a focal point in a rock garden, or fine choice for sandy, infertile soils

Ornamental Features

Blue Hair Grass features airy plumes of white flowers with silver overtones rising above the foliage in early summer. Its grassy leaves remain bluish-green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Blue Hair Grass is a dense herbaceous perennial grass with an upright spreading habit of growth. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

This is a relatively low maintenance plant, and is best cut back to the ground in late winter before active growth resumes. It has no significant negative characteristics.

Blue Hair Grass is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Groundcover
  • Naturalizing And Woodland Gardens
  • Container Planting

Planting & Growing

Blue Hair Grass will grow to be about 18 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 24 inches. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is not particular as to soil pH, but grows best in poor soils. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America.

Blue Hair Grass is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Edging  Garden  Groundcover  Naturalizing  Container 
Applications
Flowers  Texture  Plant Form 
Ornamental Features