Bob, I had a spiderwort in Utah, and it never spread or reseeded! Funny how one thing is a pest for some people, and it behaves nicely for others! I planted it in an area that I hoped it would spread in, but it never budged. I loved that plant, and meant to bring it with me, but ran out of time and room in the truck before I got to it. I think I'll give that one another try and see if I can get it to behave badly!
