Best time to see: all year
Key facts
A shrub or small tree that carries small clusters of red berries, darkening to black
Food plant for caterpillars of the brimstone butterfly
![](../images/plants/alder buckthorn (AG).jpg)
© Tony Gunton
![](../images/plants/alder buckthorn (DCo).jpg)
© David Corke
A shrub or small tree that carries small clusters of red berries, darkening to black
Food plant for caterpillars of the brimstone butterfly