Abstract: The present invention comprises a dethatching device to be pushed ahead of a zero radius turn riding lawn mower. The dethatcher is operably coupled to a mower and comprises one or more wheels, one or more rows of tines, a lift handle, and a quick-disconnect. The one or more wheels include a height adjustment, and are disposed forward of the one or more rows of tines. The one or more rows of tines include a plurality of downwardly inclined tines configured to engage the topsoil of the ground. The lift handle is configured to raise the one or more wheels and the one or more rows of tines off of the ground. A retention member is provided for retaining the lift handle such that the wheels and the one or more rows of tines are in an elevated position. The quick-disconnect allows for a portion of the dethatcher to be de-coupled from the mower.