Geranium

[Tiggrx]

I was given this Geranium by my neighbour but she couldn't remember what sort it was. I suspect she would have got it originally from a garden centre so it's unlikely to be anything too exotic.
The flower is 18mm across.

[majallison]

Looks a bit like Geranium 'Russell Prichard' to me

[Tiggrx]

Thank you! That certainly seems to match except for flower size (3cm in 'Russell Prichard'), However, so far I have only seen this one flower on the plant so it may well be atypically small.