Helictotrichon sempervirens

Helictotrichon sempervirens, the blue oat grass, is a species of flowering plant in the true grass family, Poaceae, native to central and southwest European grasslands. It is a bunchgrass often used as an ornamental grass in garden design and landscaping.

Helictotrichon sempervirens
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Pooideae
Genus:	Helictotrichon
Species:	H. sempervirens
Binomial name
Helictotrichon sempervirens (Vill.) Pilg.[1]
Synonyms
Avena notarisii Parl. Avena sempervirens Vill.

The foliage is pale green with a hint of blue. It grows in an arching shape, up to 140 cm (55 in) tall by 60 cm (24 in) wide.^[2] 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. The Latin name sempervirens literally means "immortal" but in botany means "evergreen".^[3]

This plant has gained the Royal Horticultural Society's Award of Garden Merit.^[4][5]