I notice the infestation of Himalayan Balsam
Himalayan Balsam, recognition and eradication
A large succulent, annual introduced in 1839 to Kew Gardens as a greenhouse plant, it escaped to the wild, now naturalised in the British Isles and many other non-native countries - it is very invasive and should be removed when found.
If you see this plant, destroy it, preferably before it seeds in October