Echinops

They definitely will self seed - lucky you! .... although I have one in the garden that I saved seed from for a flower seed swap - I remember Martin saying that they self seed freely - and mine definitely doesn't! It must be a sterile one as Ive tried so many times. So disappointing I have to split it to get extras. Eryngium will also self seed freely.

I thought they probably were the seeds from them, I will pot them on later on this week.