I have the purple heart plant which I usually put in a large pot but it can be spread throughout the garden simply by breaking off a branch and sticking it in the ground. I have had the same plant for 7 years. Sometimes I have as many of 10 individual plantings of it growing in a season. It is not winter hardy in IL however.
Hi - it appears to me that you wanted to post this as a reply to another query (instead of as a new thread), but I can't figure out which one it might've been. If you could point out which one to me, I can merge the two threads together.