Root Crown Excavations - Wm Johnston & Co

Improper installation of trees is a primary cause of decline in the landscape. Often, we find trees that have been planted too deeply and have developed girdling and adventitious roots. These roots form as a result of excess soil and mulch covering the base of trunk and can eventually encircle and constrict the vascular system of the tree. In addition, we often find plastic twine and other non-biodegradable materials embedded in the trunks of trees, below the surface. We perform a root crown excavation to observe the conditions surrounding the trunk or stems below the surface. This often provides an explanation as to why a plant appears to be stressed. This process exposes these roots, along with other physical obstructions so that they may be removed. From there, the area is re-graded, removing any organic matter from the actual trunk of the tree. When the natural conditions are re-established around the base of the plant, the vascular tissue can then function properly, restoring the vitality of the plant.

Overmulched tree which can lead to adventitious roots	Adventitious roots which form in excessive mulch.
Strap left attached to root ball before planting and still attached beneath ground level.	Large girdling root.