Japanese Knotweed is a fast-growing, invasive weed that can damage buildings, roads, and other infrastructure. 

Japanese Knotweed is spreading rapidly across the UK and causing billions of pounds of damage each year.

Our growth chart of Japanese Knotweed shows how it has spread over the UK. You can see where it’s been found and how quickly it’s spreading.

Where does Japanese Knotweed grow in the UK?

Japanese knotweed is a fast-growing plant that can cause serious damage to buildings and flood defences. It was introduced to the UK in the 19th century as an ornamental plant, but it soon spread into the wild where it has become a major problem.

Japanese knotweed grows best in moist soil, so it is often found near rivers and canals. However, it can also grow in other habitats, such as roadsides and railway embankments.

In addition, Japanese knotweed is very difficult to control once it becomes established, so it is important to take steps to prevent its spread.

If you think you have seen Japanese knotweed growing, please report it to your local authority so that they can take action to control it.

Growth chart of Japanese Knotweed within the UK
Growth chart of Japanese Knotweed within the UK

How does Japanese Knotweed spread and how do you identify it

Japanese knotweed is a fast-growing, invasive plant that can cause serious damage to buildings and infrastructure. It is easily identified by its heart-shaped leaves and its distinctive red flowers.

Japanese knotweed spreads rapidly through its roots, which can grow up to 3 meters in a single season.

The plant is notoriously difficult to control, and it often takes several years of treatment to completely eradicate it. In many cases, the best course of action is to simply contain the plant and prevent it from spreading any further.

Japanese knotweed is a serious problem in many parts of the world, and it is important to be aware of its spread in order to protect your property.

Japanese knotweed leaves in full bloom
Japanese knotweed leaves in full bloom

The economic impact of Japanese Knotweed on the UK

Japanese knotweed can have a significant impact on property values, as well as the aesthetics of an area. Japanese Knotweed also causes problems for infrastructure, such as roads and railways.

The plant’s roots can damage concrete and tarmac, and the plant itself can interfere with signals. It can also block drains and damage road surfaces.

In recent years, there has been a growing awareness of the economic impact of Japanese knotweed and steps are being taken to control its spread. However, due to its rapid growth and prolific reproduction, this is a difficult task.

It is clear that Japanese knotweed is having a significant economic impact on the UK and further efforts are needed to control its spread.

In Japan, the plant is actually considered a national disaster due to the damage it causes. The economic impact of Japanese Knotweed on the UK is estimated to be £166 million per year.

The cost of removing the plant from a property and repairing damage caused by it is significant, and businesses are often reluctant to invest in areas where Japanese Knotweed is present. As a result, the plant represents a serious problem for the UK economy.

In conclusion

This invasive plant can cause extensive damage to property and infrastructure, so it is important for homeowners and municipalities to be aware of its presence and take steps to eradicate it.

If you find that your property has been affected by this weed, please contact a professional for assistance.

Want to know more about Japanese knotweed?

Knotweed Removal aims to provide the most up-to-date information, help, and advice for YOU to make informed decisions. If you are unsure or uncertain about how to proceed, please reach out to us and we will gladly come back and advise you as best we can.

Governmental advice can be found here and the UK law covering the removal of Japanese Knotweed as stated under the Wildlife and Countryside Act 1981 can be found here.

The best means to contact us is via our email – hello@knotweedremoval.tips

Do not forget we have a library of blogs covering many areas relevant to Japanese Knotweed, our free downloadable How-to Guides, and Product Reviews on the latest methods being employed to eradicate or remove Japanese Knotweed.

Knotweed Removal, UK

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