A tree well installed around a trunk to prevent covering of the root crown. To raise the grade around this established tree, soil was placed on top the root zone.

A tree well to protect oak when raising soil grade around established tree, Marin Art & Garden Center Credit: Jack Kelly Clark
A tree well installed around a trunk to prevent covering of the root crown. To raise the grade around this established tree, soil was placed on top the root zone. Credit: Jack Kelly Clark