Invasive plants

Non-native plants occur outside their natural range due to direct or indirect introduction by humans, mainly through their use in gardens.

The vast majority of non-native species pose no threat to native plants in the UK, however, a small number are highly invasive. Invasive plants are able to spread rapidly and compete aggressively with native species to form large populations that dominate a habitat.

Land owners have the responsibility to treat and remove invasive plants when identified. 

Invasive or potentially injurious plants on public land will be investigated by us and if necessary, treated.

The most common invasive plants are:

  • Giant Hogweed
  • Japanese Knotweed
  • Himalayan Balsam

If the plants are in your own garden you may it helpful to call the Citizens Advice Bureau.

If the plants are in your garden of a council-owned property, housing services may be able to help.

If the plants are growing along a watercourse you will need to contact the Environment Agency.

If you believe you have a problem with ragwort in a field for horses please contact the Department for Environment, Food & Rural Affairs (DEFRA) on: 0345 933 5577 or

If the plants are on public land owned by the Cambridgeshire County Council, please notify the County Council.

If the plants are identified on our owned land, we will investigate and if necessary treat and remove.

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