What is a berm and how does it affect the health of trees?
A berm is a deep mound of earth used by landscapers to serve a specific purpose such as privacy from a busy road. Berms can be detrimental to the health of an existing tree if the tree’s roots are covered by a new berm. The root system may be deprived of oxygen and proper water drainage. If a tree is planted in a berm, the roots will likely grow too shallow and put the tree at a greater risk of blowing over.