Helictotrichon sempervirens

Helictotrichon sempervirens
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Tribe: Aveneae
Genus: Helictotrichon
Species: H. sempervirens
Binomial name
Helictotrichon sempervirens
(Vill.) Pilg.[1]
Synonyms

Avena notarisii Parl.
Avena sempervirens Vill.

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

The foliage is pale green with a tinge 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]

References

  1. "Helictotrichon sempervirens". GRIN Taxonomy for Plants. USDA Agricultural Research Service. Retrieved 27 July 2013.
  2. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  3. Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  4. "Helictotrichon sempervirens AGM". RHS Plant Finder. Royal Horticultural Society. Retrieved 27 July 2013.
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