I've been waiting two years to find out what this is growing in a pot. I have no idea if I planted some seeds or if it's a volunteer.

Here's what the basal rosette looked like last year.





This year it looks like its about to flower. The leaves are very deeply lobed.

Scabiosa ochroleuca, maybe.

That was my first thought also. Not absolutely sure. Blooms will tell.

Thank you both! That could be it.

I'll report when the buds open.

I think it's starting to look more like you're right.

Here's what a bud looks like now. I'll keep you posted.

First flower opened and it appears to confirm your ID, @janinilulu and @quercusnut.

I'll go ahead and close this thread as solved, unless there is a new ID or disagreement.

Never mind. : )

Beautiful. Keep an eye out for self-sown seedlings. It's not a heavy reseeder for me. I'm not even sure I have any left. I hope so. It's very nice plant to have.