Best time to see: mid Apr to mid Jul
Key facts
A perennial with clusters of bright blue flowers with a white eye in spring and early summer
The leaves are rough and hairy, oval with a point
Grows up to 90 cm high on damp woodland edges and hedge banks
Extras
Originates from southern Europe and was used for a red dye made from its roots
- Main photo
.jpg)
Photo © Tony Gunton