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.

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

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