what is this plant -- leaves look too pointy for periwinkle

what is this plant -- leaves look too pointy for periwinkle

Observation - what is this plant -- leaves look too pointy for periwinkle - UK and Ireland. Description: Found this and cannot work out what it is -- it was roadside -- and ideas? Ps, the flower colour was more purple than the picture suggests

Found this and cannot work out what it is -- it was roadside -- and ideas?

Ps, the flower colour was more purple than the picture suggests