Tree Stump Resource Collection

Stump Grinder

A stump grinder is a machine that uses a rotating cutting disc to mechanically grind a tree stump and its surface roots down below ground level. Stump grinding is the most efficient method for stump removal in residential settings, eliminating tripping hazards, preventing regrowth, and allowing the treated area to be replanted or landscaped. Grinding does not remove the full root system — roots below the grinding depth will decay naturally over time. This collection covers stump grinder types, the grinding process, depth capabilities, surface area requirements, what to do with the resulting wood chips, and when stump grinding is preferable to full stump extraction.

Reference Notes

Stump grinders can typically grind to 200–300 mm below ground level — sufficient to allow turf establishment but leaving the main root system to decay in place.
Walk-behind stump grinders can access areas as narrow as 90 cm — important for confined garden spaces.
The wood chip mulch produced by stump grinding is high in carbon and should be mixed with nitrogen-rich material before use in garden beds.

Wikipedia: Stump Grinder →