A collapsible wheelbarrow has a barrow formed of a plurality of panels that are hinged together to transition between an erected state in which the panels are configured to define the operative barrow and a collapsed state in which most or all of the panels are not folded together and the barrow is relatively flattened out extending over a greater ground area than when in the erected state so that the barrow in the collapsed, flattened state can function as a ground sheet, having an enlarged surface area. For a gardener this makes it much better for collecting leaves, grass or other garden cuttings or materials, which may be swept or raked directly onto the flattened but floor area-expanded barrow before then raising/erecting the barrow to its operative wheelbarrow state to be wheeled off to a compost heap or other location.