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Eriophorum angustifolium

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© Mike L. Grant 1998

Characteristics

Plant type

Aquatic

Habit

Clump-forming

Resilience

Hardiness

old H4 (hardy)

Colour

Flower

Black and White in Summer

Foliage

Dark Green in Autumn, Spring and Summer

Fruit

White in Summer

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

1-1.5 metres

Time to ultimate height

2-5 years


Preferred common name

common cotton grass

Family

Cyperaceae


Eriophorum are evergreen rhizomatous perennials forming spreading clumps of tufted, linear leaves, with solitary or clustered, ovoid black-scaled, silky-haired flower-heads, followed by conspicuous cottony white fruiting heads

E. angustifolium is a vigorously spreading perennial forming many tufts of dark green, linear leaves, with white-hairy flower-heads in summer

Other common names

  • common cotton sedge
  • downy ling
  • tassel cotton grass

Synonym(s)

  • Eriophorum polystachion
  • Scirpus angustifolius

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered or Exposed

Cultivation

Grow in acid soil at pond margins, in full sun, in water up to 5cm deep

Soil

  • Poorly-drained
  • Acid
  • Sand, Clay or Loam

Propagation

Propagate by division in spring

Suggested planting locations and garden types

Low Maintenance or Wildflower meadow


How to care

Pruning

Deadhead regularly

Pests

Generally pest free

Diseases

May be affected by powdery mildews