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Japanese Knotweed

Japanese knotweed is one of the most infamous invasive species in the UK, famous for spreading ridiculously fast and being equally ridiculously difficult to eradicate.

If you’ve noticed some mysterious looking shrubs flowering in your garden that you’ve never seen before, you may be wondering: Is this Japanese knotweed? How can I tell? Can knotweed even grow in my garden?

If any of this sounds familiar, you’re in the right place to get some answers! So, what conditions can Japanese knotweed grow in?


Where Can Knotweed Grow?

There are a number of environments in which knotweed does particularly well, such as wetlands near streams or drainage ditches. However, it’s worth noting that there aren’t many conditions that knotweed can’t grow in.

Knotweed can grow in all manner of soil conditions, and unfortunately that includes your lawn. The fact that there are very few places Japanese knotweed can’t grow is one of the features that makes it such a nuisance.  

Knotweed’s natural habitat is on the sides of volcanoes in Asia, but since it was introduced to the UK by the Victorians it has been thriving despite the UK climate being so different. We have witnessed knotweed’s ability to grow in lawn soil, river beds, in the cracks in buildings, and through pipes and drains.

Having knotweed on your lawn can have all manner of implications. Knotweed can affect the buying and selling of a house, it can cause structural damage to properties, and if left to spread onto neighbouring properties, you may find yourself at the centre of a court case.

If you think you might have Japanese knotweed growing on or near your property, it’s best to act sooner rather than later. In peak conditions Japanese knotweed can grow up to 20cm a day, with roots burrowing 3 metres deep and up to 7 metres in all directions above ground.

If there’s a possibility you have a knotweed presence on your property, take action today and reach out to Taylor Total Weed Control to arrange your FREE survey! One of our expert team members will survey your property and let you know if you have a knotweed presence, and give you a no-obligation quote as to how much you might expect to pay for treatment.

Free Survey


If you have any questions about knotweed, where it can grow, the implications of the presence of knotweed, or about arranging your free survey, reach out and contact us today. A member of our expert team will do their best to answer any questions you may have and help you take the first step in managing your knotweed today.

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Read More: Japanese Knotweed Myths Debunked

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