GROWING Problem on Britain's Railways

What is one of the growing problems on the UKs railway network? You can't miss it, it's absolutely everywhere and spreading at epidemic rates! It's called Buddleja (or Buddleia), that green leafy bush with purple flowers. Also known as Butterfly Bush because of the attraction to it from butterflies, it grows in any crack or crevice it can find. It destroys walls and masonry with its roots as well as underground cables. Once established, it can be very difficult to eradicate. One of the worse places to have suffered is Brixton in South London where the railway bridge is covered in Buddleja!