Do Tree Roots Grow Back If You Cut Them?

Are your tree roots interfering with your home's foundation, sidewalk, or yard? There's a good chance they might grow back, even if you cut them. Some trees continue growing by sending out new shoots, even after their roots are severed. If you want to stop tree roots from growing back, here's what you need to know. 

Do Tree Roots Grow Back If You Cut Them?

Even after a tree has been cut down and its stump has been removed, some tree roots will continue to grow, depending on the species of tree. Willows, poplars, elms and specific oak trees vigorously sprout, meaning they produce new shoots from their root systems, which are extensive, even after they’ve been cut. 

Some roots may continue growing, eventually creating a new tree. Others that sprout or leave to photosynthesize will eventually die, but it may take years before that happens. Root depth and size of the can impact regrowth potential.

Other factors that impact root growth include the health of the tree, as strong trees have a greater chance of regenerating, cut location (roots close to the trunk have a greater chance of regrowth than those further out), and soil conditions.

How to Remove Tree Roots and Prevent Regrowth

If you want to keep the tree, when removing its roots, make sure to take some necessary precautions to keep yourself, your home, and the tree safe. Cut roots only when necessary, avoiding those that support the tree. Use sharp, clean tools to prevent unnecessary damage—and apply pruning sealers only if recommended for the species. Once you’ve finished, keep an eye on the tree for any signs of stress, such as wilting or scorching leaves. 

If you’re not keeping the tree, you can hire a tree removal service to knock down the tree, followed by a stump removal company in your area to grind the stump. Grinding will help expedite the roots’ decay; however, this natural process can take years. You can also try other methods, such as digging out the roots, using chemical herbicides, or epson salts (or salt and boiling water). This method requires several applications over a few months’ time. 

To prevent or manage root regrowth, install root barriers to direct future growth away from structures, and when replanting, replace any problematic trees with a non-invasive species.