Community volunteers grow and replant rare tower mustard across London

Volunteers in London have successfully grown and replanted more than 1,000 tower mustard plants this year. The project was led by Citizen Zoo and Habitats & Heritage, working with local community groups and land managers.

Tower mustard is a native British herb that grows about one metre tall and has small white flowers. It is endangered in England and survives at only around 30 sites across the country. Its numbers have fallen because of habitat loss and changes in how land is managed.

Volunteers known as "Tower Mustard Guardians" meet regularly to learn how to grow the plants from seed. The plant is important for pollinators, including bees and butterflies. Some rare moths also depend on it.