Calamagrostis brachytricha

RHS Plant Profile
Korean feather reed grass

Synonyms

Calamagrostis sylvatica
Achnatherum brachytricha
Stipa brachytricha

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Grass Like

Forms a clump of glossy green, linear leaves turning yellow in autumn, with narrow, fluffy, purple-tinged plume-like sprays of flower opening in late summer and early autumn and persisting into the winter

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
1-1.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or East–facing or North–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Poaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Calamagrostis are robust rhizomatous perennial grasses, forming tufts of linear leaves, with erect stems bearing dense branching flowering panicles in summer
Name Status
Correct
Plant Range
C to E Asia

How to Grow

Cultivation

Tolerant of a range of conditions but best in moisture retentive well-drained soil with full sun or part shade

Propagation

Propagate by seed or division in mid-spring

Suggested planting locations and garden types

  • Architectural
  • Cottage and informal garden
  • Patio and container plants
  • Banks and slopes
  • Flower borders and beds

Pruning

Cut back old growth in early spring to about 13cm (5in) before growth resumes

Pests

Generally pest-free

Diseases

May be susceptible to rust diseases in wet summers or when planted densely