Abstract: An improved cart to be towed behind a riding lawn mower for collecting grass clippings, etc. therefrom and also which can be used for strict utility purposes. The cart has a tub-like open-top bed to which is secured a forward upward-extending wall having attached thereto a retractable canopy engagable with the rim of the bed to cover the same and which wall and canopy are readily detachable from the bed. The bed is pivotally mounted on a wheeled chassis for backward tilting for dumping its contents and return to normal position under the control of the operator of the mower while seated on the mower seat. The cart has a pair of ground engaging castor wheels and is detachably hitched to the mower by a construction which permits limited pivotal movement relative to the mower about a horizontal transverse axis and limited pivotal movement about a horizontal axis extending in the fore and aft direction but which prevents pivotal movement about a vertical axis.