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Great Basin Wildrye

Leymus cinereus

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Great Basin Wildrye (Leymus cinereus) at Gardenwerks

Great Basin Wildrye

Great Basin Wildrye

(Photo courtesy of NetPS Plant Finder)

Height:  6 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4a

Description:

A tall growing, cool season grass that features stunning silver-blue foliage and a clumping, upright arching habit; light tan flowers appear above the foliage in late spring; struggles in hot, dry conditions or winter wet; an excellent edging plant

Ornamental Features

Great Basin Wildrye features airy tan flowers rising above the foliage from late spring to early summer. Its attractive grassy leaves remain silvery blue in color throughout the season.

Landscape Attributes

Great Basin Wildrye is an herbaceous perennial grass with a shapely form and gracefully arching stems. 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 cleaned up in early spring before it resumes active growth for the season. 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.

Great Basin Wildrye is recommended for the following landscape applications;

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

Planting & Growing

Great Basin Wildrye will grow to be about 5 feet tall at maturity, with a spread of 24 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. This plant does not require much in the way of fertilizing once established. 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.

Great Basin Wildrye is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its height, it is often used 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. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception. Contact our experts for more information on how to protect it over the winter months.

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