Root Collar Excavation
Root Collar Excavation is the removal of excess soil and mulch from the base of a tree. When trees are planted to deep, they may become susceptible to girdling roots. Girdling roots grow around the main stem and “choke” the tree. These roots can restrict the movement of water, plant nutrients and stored food reserves. Over time, growth of the tree’s branches will be slowed, leaves will become smaller and lighter in color, fewer leaves will be produced, and eventually the branch will begin to die back. Death of the entire plant can occur anywhere from one to twenty years. However, root girdling can be prevented in vulnerable trees with root collar excavation, and of course, proper planting.