I believe this is an Antirrhinum which suddenly appeared in a pot a couple of years ago.  It's obviously very happy there and this year has produced an additional flower.  My sister and hubby have now arrived in Inverness at the start of their Scottish holiday.  They are eventually going right to the top of Scotland where they have a cottage for a week.  Hopefully the weather will be kind to them.  A mixed day today of sunshine and showers and I've had a lazy day.