Why is Japanese Knotweed a problem?

Why is Japanese Knotweed such a problem? Japanese Knotweed is a bamboo-like plant with hollow stems and green heart-shaped leaves. But why is Japanese knotweed a problem? Why Is Japanese Knotweed A Problem? As Japanese Knotweed has no natural predators in the UK, it is very hard to maintain. It grows rapidly and can grow up to 10cm a day in […]