The Environment Agency describe Japanese knotweed as the UK’s most aggressive, destructive and invasive plant. It can grow to 3-4m in just 10 weeks. Below ground, its roots can spread 7m horizontally, and can compromise the structure of a building. In a house sale transaction, its presence can be a deal breaker. Lenders can be very nervous about mortgaging a property that has Japanese knotweed on the site. Correct treatment and eradication must be completed by specialist contractors, who must dispose of it off site to a licensed tip. We can advise you if your property has Japanese knotweed, and we can use our network of specialists to help you.