How cleared industrial ground near Northwich can bring knotweed into neighbouring plots, and what to watch for through the year.
Winnington and Wincham grew up around the chemical and salt industries. Where old works have been cleared, filled or landscaped, bare ground gives knotweed room to establish, and it can then spread to houses and plots beside it.
Spears in spring along a fence, a block of tall canes above the boundary in summer, or dry brown stems standing in winter.
Take a photo and send it to us. If it is knotweed, the survey shows how far it runs and where it crosses into your land.
