BIg Four

On the Wandle, there are four invasive non-native plants that we are most concerned about: Japanese knotweed, Himalayan balsam, floating pennywort and giant hogweed.

All four of these species are established along the banks of the Wandle and use the river as a dispersal corridor to spread throughout the catchment. Each species causes its own issues for ecology. You can find out more about each one below.

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Photo credits: GBNNSS

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This project is supported by the National Lottery’s Heritage Lottery Fund as part of the Living Wandle Landscape Partnership.

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