We would like to remove the lawn from a large area around some 40-50 ft pine trees and cover the area with decorative bark. The roots are close enough to the surface in some areas that using a sod cutter would damage the trees. Would it work to just spray the grass with a killer, such as Roundup, and then put the bark directly on the dead grass? Would this affect the trees in the areas of the partially exposed roots? Any other suggestions?



Roundup is a broad spectrum herbicide, which means that it can affect any plant that it comes in contact with.  If Roundup gets on the exposed roots it could harm the tree. Other options you may want to consider would be using black plastic mulch to cover the grass or a shovel with a sharp blade to cut the sod. This would allow you to maneuver around the roots.

Posted on 29 Jun 2009

Heidi Wayman
Horticulture Intern, Salt Lake County

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