I had a few of them. They do not take to root trimming too well, best to do a little each year for a few years. The first one I got was in a 3 gallon nursery container and rootbound. I just sawed off the bottom third of the mass and it died in a few weeks. They need a lot of water and light, but in the real heat of the Ohio summer they can dry out and get crispy quick. The fall color is superb. I don't remember any pest problems, I did find the branches a little stiff especially near a joint where you can snap them off easily. I had great looking plants until moving them into a Bonsai pot, its hard to keep them wet enough to survive the heat with a small root system, I even tried mixing some sphagnum moss into the soil to hold more water along with the little red pumice rocks and original potting soil I was using, they seem to suck water quick. If you had a watering system it would have to help, I don't think an inorganic mix would keep it moist enough otherwise. I had the dwarf burning bush.
ed