Buddleia

Scientific Name: 
Buddleja davidii

Buddleia 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.

How to identify: 
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.
Where to find it: 
Widespread, except in the far north.
How people can help: 

Although Buddleia is an introduced species, it has become an important nectar source for many species of butterfly and moth, especially in urban areas where natural habitats have been lost and gardens are now important corridors for wildlife moving about the country. Plant Buddleia in your garden and enjoy watching who comes fluttering by for a drink... To find out more about wildlife-friendly gardening, visit our Wild About Gardens website: a joint initiative with the RHS, there's plenty of facts and tips to get you started.

Statistics: 
Height: up to 4m
Conservation status: 
Introduced species.
Did you know?: 
Buddleia is also known as the 'Butterfly Bush', because it is such a popular nectar source in gardens. Eminent naturalist, Richard Mabey, reported regularly seeing 'more than 50 individuals of up to ten species together on a single bush' in his own garden in August.
Seasons: 
Spring
Summer
Autumn
Winter
When to see
Start date: 
January
End date: 
December
Image: 
Red admiral butterfly feeding on buddleia - Amy Lewis