For local and parish councils, invasive plants can create legal, financial and operational challenges across parks, verges, footpaths, watercourses and other public spaces. Councils have a duty to manage these species responsibly, protect the local environment, and reduce potential risks to residents.
Why should councils be aware of invasive plants?
Understanding the regulations and best practice is not only essential for compliance purposes, but for maintaining safe, accessible public areas and trust within your community. Several non‑native plants grow aggressively and can cause issues for paths and drainage, take over habitats, and spread easily onto neighbouring land.
The scope of the problem
Currently there are several species which require particular attention in the UK. These include Japanese knotweed, giant hogweed, Himalayan balsam, cotoneaster species, Japanese rose, American skunk cabbage, Chilean rhubarb and floating pennywort.
The Legal Duties
The Wildlife and Countryside Act 1981 makes it an offence to plant or allow certain invasive species to spread in the wild. This includes knotweed, giant hogweed and several cotoneaster species.
The Invasive Alien Species Order 2019 bans the import, sale, transport or cultivation of listed high‑risk species. Even soil containing plant fragments is covered.
Under the Anti‑Social Behaviour, Crime and Policing Act 2014, councils can issue Community Protection Notices to others, but can also receive them if invasive plants on council land are not being managed.
The waste and disposal of invasive plants
Plant material from invasive species is classed as controlled waste. For Councils this means you must:
- use licensed waste carriers
- dispose of material at authorised facilities
- keep waste transfer notes
- handle contaminated soil carefully to avoid spreading fragments
Invasive plant identification and risk assessments
Much like the disposal of plant material, seeking professional help is best when it comes to identifying the threat of an invasive species. Inspections carried out on a regular basis can help spot issues early, especially along watercourses, verges and unmanaged areas, enabling councils to take necessary action to remove and prevent further threats.
Council risk assessments should also consider how easily the plant spreads, and whether it threatens infrastructure or neighbouring land.
Treatment and ongoing control
Managing invasive plants is a long-term effort. Any herbicide work must be carried out by trained professional, and in some cases excavation or manual removal is appropriate.
As mentioned prior, regular inspections are essential to spot the risk of invasive plant species, while follow‑up monitoring is essential to prevent the risk of regrowth.
Got a question? Speak to our team
Managing invasive plants is part of maintaining safe, accessible and environmentally healthy public spaces. Early action, good record keeping and the use of qualified contractors help councils stay compliant and protect community land.
If you have any questions on invasive plants, please contact Clear Councils Insurance for further information at [email protected].


