Can I get in trouble if I have Japanese knotweed in my garden?
It’s not illegal to have Japanese knotweed in your garden, but you have to keep it under control – in a careful and considered way. Even when you think you've got rid of it, it can come back with a vengeance as it can regrow from just a tiny part of root that's been left behind in the soil. Anyone found spreading Japanese knotweed into the wild could be fined up to £5,000 or imprisoned for up to two years – so it’s a serious business. You could also be served a community protection notice for causing a nuisance if you allow Japanese knotweed to grow into anyone else’s property.