Pupils at a Chorley school have done their bit by joining in a community Balsam Bash.
The invasive Himalayan Balsam was starting to overrun a large area of the nearby Whittle and Clayton-le-Woods War Memorial Garden.
Residents said plants were spreading from the riverbank and over the lawn area.
As a result, pupils joined members of the community in tackling the head-high plants.
The effort should allow the grass lawns to re-establish themselves.
For more pictures, see this week’s Chorley Guardian.