Japanese Knotweed identification: how to spot it
Japanese knotweed is the UK’s fastest-growing invasive weed. During the summer, it can grow at speeds of 10cm a day. If left untreated, these emerging shoots can quickly exploit weaknesses in brick, tarmac, and metal piping, causing costly damage to everything from buildings to roads.
Attempting to remove the weed yourself will only make the problem worse. Japanese knotweed can re-grow from cuttings as small as 2mm, meaning the smallest traces can lead to new growth. Because of this, knotweed is classed as controlled waste, and must be disposed of safely at a licensed landfill site according to the Environmental Protection Act (Duty of Care) Regulations 1991. By the end of the growing season, Japanese knotweed can reach heights of 4m. At this stage, it is much more difficult to remove.
The first step to treating the weed is with early identification. If you suspect you have Japanese knotweed, we’re happy to help you identify it.
Simply take a photo the plant and attach it to our free image uploader and we’ll get back in touch within 24 hours.