Pam Moore wrote:
To those of us who let aquilegia seed about, that is unquestionably
what this is. It would be worth keeping at least for one year in case
you have an unusual colour.

I still can't believe I /bought/ a columbine plant (about 6 years ago,
before I discovered I had a garden full of them already!) for 4.99!
It's a beautiful colour, baby blue.