Small flower ID, please.
Hi, this is my first post on this site. I also post on the RHS forums as Ian but have a problem with their website at the moment.
I'd really appreciate help in ID'ing this very pretty small flower. I had a couple in my borders last year from mixed wildflower seeds and this has self-seeded in the stones.
It's about 10 -12cm tall and the small flowers are branched, with four petals.