I got an Echinacea purpurea on clearance at the local garden center last fall... it was a bit wilty, but I made a nice hole for it with compost and everything, and it bravely made a little flower... and then got hit with that winter. I really didn't know if it would make it--if it had time to get established.
But it came back no problem, and it's going gangbusters, and since it's next to the driveway every time I come home from work I see at least a couple bumblebees working the flowers. Have also seen an American Lady butterfly on them. I'm loving it!