Reporting Japanese Knotweed

How to Report Japanese Knotweed

Once Japanese Knotweed has been identified by a qualified specialist, it's important to ensure that all relevant parties are informed - particularly neighbouring property owners or landholders who may be affected.

At Cork Japanese Knotweed, we often receive questions about when and how to notify others of an infestation.

Here's what you need to know:

Do I Have to Declare Japanese Knotweed?

It is not illegal to have Japanese Knotweed on your property, garden, or land.

However, it is illegal to allow it to spread or encroach onto neighbouring land - whether privately owned, public, or managed by local authorities.

If Japanese Knotweed from your property spreads to another site, you may be held legally responsible for damagesunder civil law, and legal claims could be pursued.

Therefore, early identification and proactive management are essential to prevent potential disputes or enforcement action.

When selling a property, you are also legally required to declare the presence of Japanese Knotweed on the Property Information Form (TA6), ensuring full transparency with buyers and conveyancers.

Do I Need to Notify Anyone?

Unlike certain other invasive plant species, Japanese Knotweed does not need to be reported to the government or local council.

However, if the plant is spreading or poses a risk to neighbouring land, boundaries, or structures, it is strongly advised to inform affected neighbours and take prompt professional action.

Attempting to control or remove Japanese Knotweed through DIY landscaping or cutting often worsens the problem, as even the smallest fragment of root can regrow.

To manage it safely and effectively, you should always seek help from a qualified invasive plant specialist.

How Cork Japanese Knotweed Can Help

At Cork Japanese Knotweed, we provide:

• Professional site inspections and identification reports
• Comprehensive treatment and management plans
• Legally compliant solutions to prevent spread and minimise risk
• Advice and documentation to support communication with neighbours, solicitors, or local authorities

Our expert team ensures your property remains safe, compliant, and fully protected from the legal and environmental risks associated with Japanese Knotweed.

For any enquiries or questions, do not hesitate to contact us!

Email. corklandscaper@gmail.com

Tel. 0870018636