Thank you Crittergarden, I hope you will plant it this year, I have had mine for five years and it hasn't been a problem with spreading too much, and as you say the new plants are easy to pull. I do have thick mulch on the beds so not many seeds get to sprout.
I love the new leaves in the spring, so strong and lush and in the fall if the weather is right the colors are amazing. This year the colors didn't happen, we had a very sudden freeze and the leaves just shriveled up.
Take care and have fun gardening and observing nature.