• AGM plants

    AGM plants have been through a rigourous 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

Carex riparia

Greater pond sedge

Greater pond sedge

© � RHS 2002

  • Other common names Greater pond sedge
    Greater bank sedge

  • Genus Carex can be deciduous or evergreen, rhizomatous or tufted perennials, with triangular stems bearing linear or strap-shaped leaves and short or long spikes of tiny green or brown flowers

  • Family Cyperaceae / Cyperaceae

  • Species C. riparia is a vigorously spreading rhizomatous perennial with linear, glaucous green leaves and tall stems bearing stout, erect, dark brown flowering spikes in early summer

  • Plant range Eur. to C Asia & S S. Amer.


  • Foliage Deciduous

  • Habit Tufted



  • Full Sun

  • Partial Shade

  • Aspect South-facing or West-facing or East-facing

  • Exposure Sheltered or Exposed


  • Chalk


  • Chalk


  • MoisturePoorly-drained

  • SoilClay, Loam

  • pHNeutral, Acid, Alkaline


  • Ultimate height

    1-1.5 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Grow in fertile, moist or wet soil in sun or partial shade

Propagation Propagate by seed sown in autumn, or by division from mid-spring to early summer

Suggested planting locations and garden types Low Maintenance Wildflower meadow Wildlife Gardens

How to care

Pruning Cut back after flowering

Pests Aphids sometimes attack stem bases

Diseases Generally disease free

Advertise here