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Wild flowers are being out-competed by ‘thug’ plants on our roadside verges, a study by the charity Plantlife has found. Pollution from cars and poor management practices by local councils has meant that nitrogen-loving plants out-compete wildflowers. Dr Trevor Dines explains to Adam Rutherford what actions can be taken to help our verges regain their natural biodiversity.

First broadcast on ÃÛÑ¿´«Ã½ Inside Science, 17 May 2018.