The habitats where water mint~(Mentha aquatica) grows:

Blanket bog
Brownfield
Coastal floodplain grazing marsh
Dune slack
Fast flowing river and stream
Hard cliff and cliff slope
Limestone pavement
Lowland fen
Lowland meadow and pasture
Marginal and inundation
Mesotrophic grassland
Moist damp verges and banks
Nutrient rich eutrophic lake
Pond ditch and canal
Purple moor grass and rush pasture
Reedbed
Sand dune
Sluggish river and stream
Turlough and fluctuation mere
Upland acid grassland
Upland rush pasture
Upland spring flush
Wet woodland