Take a look at the five images below. The images were taken one week apart. the images show a dramatic size increase – where the Japanese knotweed has doubled in height! These images truly depict why Japanese knotweed is listed as one of the world’s worst invasive species (listed by the International Union for Conservation of Nature).
Knotweed causes many problems in the UK due to its impact and damage to property. It grows a t blisteringly fast pace as the images below show!