Project - River Holme Connections

INNS Out: Japanese knotweed control

In Progress


Japanese knotweed is a non-native, invasive species that affects native wildlife, can damage buildings and make property difficult to sell.

There is a legal obligation for landowners to control Japanese knotweed, which is classified as controlled waste. It must be treated by licensed operatives and disposed of at licensed sites.

Cost of service: we have trained, licensed professionals who can treat and control Japanese knotweed on riverside areas, in return for a donation.


Japanese knotweed is a non-native, invasive species with strong roots and shoots that can damage buildings and reduce property prices. It can only be treated by licensed operatives. Landowners have a legal responsibility to control Japanese knotweed on their premises and can face hefty financial penalties if it spreads.

Left untreated, Japanese knotweed, spreads easily downriver. It pushes out other plants that our native wildlife feed on, which reduces diversity. It has very strong roots and shoots that can also damage buildings and make property difficult to sell.

It’s highly likely if your property backs onto the river and doesn’t have Japanese knotweed at the moment – it will be invaded by this non-native species eventually.

Treating and controlling Japanese knotweed

If you have Japanese knotweed on your land, please get in touch. If you try to pull, cut, mow or burn Japanese knotweed, it can cause it to spread.

Our specialists are fully trained and licensed to treat Japanese knotweed. You can also be confident that any waste is disposed of carefully at licensed sites.


Once the Japanese knotweed has been treated the cleared areas will be re-planted. We always use native plants that will encourage butterflies, bees and birds, as well as providing food and shelter for other native wildlife.

Find out more

If you’d like to know more about our Japanese knotweed control programme, download our leaflet or get in touch.