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Helictotrichon sempervirens
  • RHS AGM

blue oat grass

H. sempervirens is a dense tufted evergreen grass with rather rigid blue-grey leaves to 23cm in length. Small, straw-coloured spikelets are borne in large open panicles on erect stems to 1.4m in height

Synonyms
Avena sempervirens
Avena candida
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Size
Growing conditions
Colour & scent
StemFlowerFoliageFruit
Spring
Summer
Autumn
Winter
Position
Aspect

Exposure
Botanical details
Family
Poaceae
Native to the UK
No
Potentially harmful
Genus

Helictotrichon can be deciduous or evergreen grasses, forming compact tussocks of linear leaves, with erect or arching stems bearing panicles of flowering spikelets in summer

Name status

Correct

Plant range
SW Europe

How to grow

Cultivation

Grow in poor to moderately fertile, neutral to alkaline, well-drained soil

Propagation

Propagate by division in mid-spring

Suggested planting locations and garden types
Pruning

Remove dead foliage and old flowered stems in spring

Pests

Generally pest-free

Diseases

May be affected by a rust

Get involved

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