The habitats where watercress~(Nasturtium officinale) grows:
| Chalk river and stream |
| Coastal floodplain grazing marsh |
| Fast flowing river and stream |
| Lowland fen |
| Marginal and inundation |
| Moist damp verges and banks |
| Nutrient rich eutrophic lake |
| Pond ditch and canal |
| Sluggish river and stream |