Columbine Crab Spider

I found this very double columbine growing between two blocks of glasshouses. I don't know how it got there. I love these traditional cottage garden flowers. Named because it looks like a nest of doves it got me thinking of poor Terry the turtle dove that has arrived in the North York Moors and who is calling in vain for a mate. 

The crab spider is tiny so I'm not sure whether it is Misumena vatia that I often see. They're usually much bigger.