The habitats where couch~(Elytrigia repens) grows:

Arable
Brownfield
Coastal floodplain grazing marsh
Coastal vegetated shingle
Damp fertile disturbed
Disturbed nutrient rich
Dune slack
Gateways and tracks
Hard cliff and cliff slope
Hedgerow scrub
Limestone pavement
Lowland fen
Machair sand dune
Mesotrophic grassland
Mixed scrub
Moist damp verges and banks
Nutrient rich eutrophic lake
Only East Anglia
Open habitat arable weed fertile loam and clay
Open habitat arable weed less fertile acid
Open habitat arable weed light lime rich
Pond ditch and canal
Reedbed
Salt marsh
Sand dune
Traditional orchard
Upland spring flush