River Brent at Perivale Park. See https://bit.ly/2J5OEIQ More information: https://bit.ly/2J5OEIQ
Join Thames21 and help remove a very invasive plant, Himalayan Balsam, from your local waterway, the River Brent at Perivale Park. Himalayan Balsam takes over the riverbanks, not allowing other species to grow.
