French Cranesbill?
Introduction
The photograph on this page of French Cranesbill? by Anne Burgess as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Anne Burgess Taken: 30 Aug 2016
I was lucky to get this because the flower was being blown about in a brisk breeze. It looks like French Cranesbill (Geranium endressii) but there is no previous record of G endressii in this grid square. On the other hand G endressii is a garden escape, and this is growing against the exterior wall of a cottage garden.