Can you identify this vibrant flower?

Paul Roebuck, Nottinghamshire

ABOB SAYS Rose campion (Lychnis coronaria) is found so often as a weed or garden escape that some people imagine it is native. But it originally comes from southern Europe. A vibrant addition to borders, with soft grey foliage, it prefers a sunny spot and self-seeds readily.

Rose campion blooms for weeks, seeding freely unless deadheaded

Lithodora forms a low, evergreen carpet with intense blue flowers