If you own a property or a section of land, it may be that you have the misfortune to come across the invasive Japanese Knotweed in Northamptonhire. Just like Katie Jones did last year living in Northamptonshire. Japanese Knotweed is a large, herbaceous perennial plant that is native to East Asia in Japan, China and Korea. Growing up to three metres in height, it spreads rapidly and can push up through asphalt, cracks in concrete, driveways, cavity walls and drains in its quest for light and water. This can only be eradicated by using a translocating herbicide that is not available to the public, for this you would need the help of a PCA qualified surveyor. This is where Japanese Knotweed Expert can help.