Argentinian Vervain - Verbena bonariensis

Verbena bonariensis is a tall plant with erect, branching stems to 2m in height, bearing sparse, oblong leaves and large branched clusters of small, purple flowers.

A cultivated flower that occasionally escapes into the wild and persists for a while, usually on bare or stony ground. Often found close to habitation.

Flowers summer and early autumn.

Perennial.

Widespread but infrequently recorded in the wild in Britain.

Rare as an escape from cultivation in Leicestershire and Rutland. It was not recorded in the 1979 Flora survey of Leicestershire.