Abstract: The present invention is related to lawn maintenance and describes a system for mounting an accessory, such as a grass trimmer, to a lawn tractor or lawn mower. The mounting system provides a lawn tractor operator the ability to operate an accessory while seated in the lawn tractor. The mounting system is also advantageous in that the operator need not specifically align the tractor with any objects that present an obstacle for mowing, but may instead move the accessory to the object. The accessory mounting system includes a linkage arrangement that allows the accessory to be moved from side-to-side of the lawn tractor. The linkage arrangement includes a centered orientated vertical pivot member interconnected with a link member, which is defined by a pair of curvilinear members, that allows the link member to rotate to reposition the accessory. The linkage arrangement also allows limited vertical displacement of the accessory.