• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Eriophorum angustifolium

common cotton grass

common cotton grass

© � Mike L. Grant 1998

  • Other common names common cotton grass

  • Synonyms Eriophorum polystachion
    Scirpus angustifolius

  • Genus 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

  • Family Cyperaceae / Cyperaceae

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

  • Plant range Subarctic & Temp N Hemis.


  • Foliage Evergreen

  • Habit Clump-forming



  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered or Exposed


  • Chalk


  • Chalk


  • Chalk


  • MoisturePoorly-drained

  • SoilSand, Clay, Loam

  • pHAcid


  • Ultimate height

    0.1-0.5 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    2-5 years

How to grow

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

Propagation Propagate by division in spring

Suggested planting locations and garden types Low Maintenance Wildflower meadow

How to care

Pruning Deadhead regularly

Pests Generally pest free

Diseases May be affected by powdery mildews

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