Brits have been warned of an invasive weed which is often seen climbing up people’s chimney pots and can knock the value off people’s homes if ignored.
Buddleia davidii, also known as butterfly bush, was widely planted by green-fingered Brits as it can attract insects and wildlife to gardens.
However the plant is a huge problem for railways and the Department for the Environment, Food and Rural Affairs (Defra) calls it a non-native species.
