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Japanese knotweed: getting rid of it legally

Why knotweed must not go in your garden waste, and what to do if you find it in your garden.

Last reviewed 21 October 2026 · Applies to England and Wales

Quick answer. Do not put Japanese knotweed in your garden waste bin, compost it or take it to the tip with other green waste. Get specialist advice before digging or cutting it.

Why it is different

Japanese knotweed spreads from tiny pieces of root and stem. Moving soil or cuttings carelessly spreads it to new places, and causing it to spread in the wild can be an offence.

Knotweed waste

Knotweed and soil containing it are controlled waste. They must only go to a site able to accept them, using a registered carrier. Ordinary garden waste collections are not suitable.

If it is spreading from next door

Talk to your neighbour first. Some councils can help where knotweed on neighbouring land is causing a problem, so check your council’s website.

Selling a home

Property sale forms ask about knotweed, so keep records of any treatment plan.

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