I have had these maples for up to ten years. They were in the back yard. In clay and sun. As you can see by the size they never really grew at all. I bought them this size. That poor tree with the top chopped off, was a very large tree with all the greenery high up. Most of it was dead, but there will little green shoot on the trunk so I just hacked it back to those shoots. Like all the other trees, there was massive die back every year, and they all shrunk in size or thinned out more and more each year. I honestly haven't seen them look this thick and good in many years.