Pink Double Delight Echinacea

I purchased this very small plant (like a plug) 3 years ago from Spring Hill Nurseries for $19.99.  It has done nothing!!  When I thought I had pulled up all coneflowers in this section, I missed this one.  As it grew, I cut it back and when I bought the artesmia moss plant, I was going to pull it out.  For one reason or another, I kept putting it off.  This past Monday, that was on my "to-do" list, but I got tired from weeding and didn't.  In just a couple of days, this plant has come alive.  I'm happy I did not pull it up now.

This is what it is going to grow into: