buddleia davidii

Buddleia (Buddleja davidii) is a popular garden plant which was introduced into the UK from China in the 1890s and has now become widely naturalised on waste ground, along railway lines and in towns.

Its familiar purple flowers bloom from June to October and attract all kinds of butterflies and moths looking for nectar sources, particularly in urban areas. Its winged seeds and dispersed by the wind and find it easy to colonise stony ground.

Buddleia is a very familiar bush, with large, drooping spikes of purple (or sometimes white) flowers. It has long, narrow leaves and the flowers have a honey-like fragrance.