Girdled trees

When you're buying nursery trees, there are many things you have to look for aside from the basic aesthetics. One of the most common root health issues for boxed trees is when the nursery doesn't move the trees into a larger box soon enough and the roots begin curling around each other called root girdle. Here is a picture showing signs of root girdle. Sometimes it's less obvious than this and you need to pull the dirt away a little to check. This will stunt the trees growth and lifespan. There are root cutting methods to try and salvage a tree in this state, but most of the time the tree will not fully recover.