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Koeleria glauca

grey-blue koeleria

K. glauca is a semi-evergreen perennial grass forming a compact tuft of narrow grey-green leaves and, in summer, silvery-green, cylindrical flowering panicles

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Grey Silver Green Green Grey Silver
Autumn Green Grey Silver
Winter Green Grey Silver
Position
  • Full sun
  • Partial shade
Aspect

West–facing or East–facing or South–facing or North–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Poaceae
Native to the UK
No
Foliage
Semi evergreen
Habit
Tufted
Genus

Koeleria can be annual or perennial grasses, forming compact tufts of linear leaves, with narrow silvery flowering panicles in summer

Name status

Correct

Plant range
Europe to C Asia

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How to grow

Cultivation

Grow in medium to light, moderately fertile soil. Thrives in shallow chalky soil but is tolerant of acid conditions

Propagation

Propagate by seed sown in situ in spring or autumn or by division in mid-spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Rock garden
  • Patio and container plants
  • Low Maintenance
  • Flower borders and beds
Pruning

Cut back old, flowered stems before seeding or in autumn

Pests

Generally pest free

Diseases

Generally disease free

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