50ft blue spruce tree root issue

Asked August 10, 2020, 12:09 PM EDT

Wondering if i should cut. Have 1 3" thick root high enough above ground to be an issue with lawn mower. the root is about 15 ft from trunk. the cut would be that far from tree as the root goes back underground after that.

Outside United States

1 Response

Thank you for contacting "Ask an Expert!"
It is not advisable to cut large roots from a mature tree because the tree is relying on those roots for stability and to gather nutrients (hundreds of fine roots can grow from a larger root) . A mature tree will have a hard time recovering from such a cut, and it could cause long term decline in the tree. If possible, it's best to just work around the root when mowing.
Thank you,