Top 10 Myths about Japanese knotweed


  1. Japanese knotweed can grow through concrete: While Japanese knotweed is a vigorous plant with a strong root system, it cannot grow through solid concrete. However, it can exploit cracks and crevices in concrete, giving the impression that it is growing through it.


  1. You can kill Japanese knotweed with home remedies: There are many home remedies touted as effective for killing Japanese knotweed, such as pouring boiling water, salt, or bleach on it. However, these methods are not effective in the long term. The only way to control Japanese knotweed successfully is through professional treatment with herbicides.


  1. Japanese knotweed is poisonous: Japanese knotweed is not poisonous to humans or animals. In fact, it has been used in traditional medicine for centuries. However, it can cause skin irritation in some people.


  1. Japanese knotweed will make your house collapse: While Japanese knotweed can cause damage to property if left untreated, it is unlikely to cause a house to collapse. The main concern is that Japanese knotweed can damage foundations and other structures if it is allowed to grow unchecked.


  1. You cannot get a mortgage on a property with Japanese knotweed: It is possible to get a mortgage on a property with Japanese knotweed, but it may be more difficult. Lenders will typically require a professional survey and management plan in place before they agree to lend on a property with Japanese knotweed.


  1. Japanese knotweed is a new problem: Japanese knotweed has been in the UK for over 150 years. It was originally introduced as an ornamental plant, but it quickly became a problem due to its invasive nature.


  1. Japanese knotweed is only found in the UK: Japanese knotweed is found in many countries around the world, including the United States, Canada, and Australia. It is a major problem in many areas, and it is important to be aware of the risks associated with it.


  1. There is no cure for Japanese knotweed: While there is no quick and easy cure for Japanese knotweed, it is possible to control and eradicate it with professional treatment. The most effective method of treatment is the use of herbicides, which are applied to the plant over a period of time.


  1. Japanese knotweed is always visible: Japanese knotweed can die back in the winter, leaving no visible signs above ground. However, the plant is still alive underground, and it will grow back in the spring.


  1. Japanese knotweed is not a big deal: Japanese knotweed can be a serious problem if it is left untreated. It can cause damage to property, reduce the value of homes, and make it difficult to sell a property. If you think you may have Japanese knotweed on your property, it is important to contact a professional for advice.