Japanese knotweed

Bamboo is coming under the fence from next door and the survey names it as bamboo. What knotweed conclusion has that naming refused?

The naming has refused a conclusion that this plant is Japanese knotweed. Bamboo is coming under the fence from next door, and the survey names it as bamboo. That is an identification of bamboo, not of knotweed. The survey has not called the growth knotweed, has not found a knotweed stand, and has not dressed the neighbour's plant up as one. The knotweed conclusion that naming refuses is any finding that the bamboo is knotweed.

Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.

What is the fuller explanation?

Bamboo and Japanese knotweed are different plants. A survey that names bamboo is declining to apply the knotweed label to what it saw under the fence. Growth from next door can still be a neighbour problem, because running bamboo can travel, but that is not the same finding as knotweed in the ground. GOV.UK guidance on invasive non-native plants is a separate reference. It does not rewrite the survey's name. The report has identified bamboo. It has refused the knotweed conclusion by doing so.

Tell the solicitor the survey names bamboo coming under the fence, not knotweed, and ask how plants crossing the boundary are dealt with. Do not insert knotweed into the enquiries because bamboo is unwelcome. If you need the bamboo itself managed, that is a different instruction from a knotweed plan. Keep the survey's identification as it was written. Do not rename the plant when you write the enquiries.

What should you ask your surveyor?

Where is the bamboo coming under the fence?
What plant name did you give it, and what name did you refuse?
Did you identify any Japanese knotweed on this boundary?

What are the typical next steps?

Tell the solicitor the survey names bamboo, not knotweed.
Do not insert knotweed into the enquiries because the bamboo is unwelcome.
Keep any bamboo-management question separate from a knotweed plan.

Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.

Also asked about this

If the bamboo is a nuisance, has the survey renamed it as knotweed?

No. A plant can be a nuisance and still be the bamboo the survey named. Nuisance does not rename it as Japanese knotweed. The knotweed conclusion was refused by the naming. If knotweed were present it would need its own identification, which this note has not given.

Does growth under the fence decide who should remove the plant?

No. Growth under the fence shows the plant is crossing from next door. It does not decide who should remove it, and it does not turn bamboo into knotweed. The survey named bamboo. Responsibility for a neighbour's plant is a matter for the solicitor, not a conclusion the naming failed to refuse.