it dies back to the ground here in the winters. pops up each spring, but mine was a teeny thing last fall cause it was new. I use to have a huge plant and it reseeded all over the place, but we had to dig up that flower bed and i lost the big plant then, so i'm starting over, I still havent' had a chance to go look to see if it's out there.
That's something you don't see too often at nurseries is Rue. I love the looks of the leaves on it.