A lawn mower (10) may include a blade housing (16) configured to house at least one blade, an engine (18) supported at least in part by the blade housing to selectively rotate the at least one blade, a handle assembly comprising at least one handle member (40) for guiding operation of the lawn mower by an operator walking substantially behind the lawn mower, and a handle height adjustment assembly. The handle height adjustment assembly enables the handle member (40) to be fixed in at least a first operating position (60) or a second operating position (62) each of which defines different handle heights for the handle member responsive to the handle height adjustment assembly being in a locked state, and enables the handle member (40) to be rotated between the first operating position (60), the second operating position (62), and a folded position (64) responsive to the handle height adjustment assembly being in an unlocked state.
