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Japanese Knotweed

Japanese Knotweed is listed under Schedule 9 to the Wildlife and Countryside Act 1981 with respect to England, Wales and Scotland.

As such it is an offence to plant of otherwise cause Japanese knotweed to grow in the wild. Under the Environmental Protection Act 1990, Japanese Knotweed is classified as controlled waste.

More Information and downloadable ID sheet
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Introduced in the early 19th century as an ornamental plant. Now common and widespread in the Tamar catchment and across the UK.

Negative impacts include outcompeting native flora, contributing to river bank erosion and increasing the likelihood of flooding.

Can also cause significant delays and cost to development as well as structural damage

FAQs

What to do if you have Japanese knotweed on your property

How to dispose Japanese knotweed off site

How to contact the Environment Agency for more information about Japanese knotweed

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