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Smooth Cordgrass

Status: Established

Habitat: Marine

Threat: Negative impacts on native intertidal communities


  • a robust perennial grass with shoots that can reach 1.3 m in height.


  • spread vegetatively and by seed
  • colonises sheltered mudflats at a tidal level below normal salt marsh vegetation
  • produces dense monoswards
  • monoswards reduce water movement and increase sedimentation, causing marsh levels to rise and preventing other species from establishing.


  • reduces biodiversity
  • dense monoswards on mudflats reduce the food resources available for wildfowl and wading birds


Following the Government’s advice in relation to COVID-19, Loughs Agency has put in place a number of measures to maximise our capacity to continue to deliver our services as best we can.