I have a small stewartia tree in my front yard surrounded by thick ornamental grasses. I have weed whacked the grasses and plan to expand the area around the tree with sheet mulching in a couple weeks. This is where my ideas run dry. I tried to find good companions for the tree but my searches didn't turn anything up. We just moved into this house and from the information I received from the previous owners the tree is only 2-3 years old. I was hoping someone here would have some ideas about what best to plant under a small tree that won't mess with its growth.