Helictotrichon sempervirens, or Blue Oat Grass, is a bunchgrass often used as an ornamental grass

Ornamental grass

Ornamental grasses are grasses grown as ornamental plants. They have become increasingly popular in gardens in recent years.-Classifications:...

 in garden design

Garden design

Garden design is the art and process of designing and creating plans for layout and planting of gardens and landscapes. Garden design may be done by the garden owner themselves, or by professionals of varying levels of experience and expertise...

 and landscaping. It is in the Poaceae

Poaceae

The Poaceae is a large and nearly ubiquitous family of flowering plants. Members of this family are commonly called grasses, although the term "grass" is also applied to plants that are not in the Poaceae lineage, including the rushes and sedges...

 family of true grasses, and native to Central European grasslands.

Blue Oat Grass has foliage that is pale green with a tinge of blue. It grows in an arching shape, up to 2 foot (0.6096 m) tall and wide. The grass blooms with pale blue-green flowers in May to August. The plant is an evergreen perennial, although with summer drought stress semi-dormancy occurs.