Has anyone had experience with the "Sem". I dug one out of our garden as it was sending too many runners out and starting to overpower the plants in the bed. I put it into a large garden container. It has formed a multi stemmed shrub. But it is noted for it's amazing autumn colour. The leaves are Compound opposite seratted and pinnate (very much like an ash trees leaves). The leaves are fairy small. Just wondering if anyone has had success with it.