Abstract: A mower canopy as an add-on attachment for riding lawn mowers which includes brackets mounting front and rear struts in front of and behind the mower operator. The struts telescopingly attach to front and rear adjusters that set the height of the mower canopy. The top of each of the adjusters attaches to a molded plastic mower canopy with reinforcing ribs and reinforcing skirt. A canopy ring attached to the reinforcing skirt adds additional strength to the mower canopy. Braces prevent pivotal movement of the struts and mower canopy so that the mower canopy is easily installed and quickly removed or lowered as the need arises.