Musk Mallow (Malva moschata) flowering prettily in the wildflower patch on the allotment. Unlike the Common Mallow mentioned several days ago M. moschata isn't very common. There is also a form with pure white flowers. Common Mallow is probably too "untidy" and prolific to be favoured by ornamental gardeners but the pink and white Musk Mallows would look fine in a sunny herbaceous border.