Abstract: Disclosed herein is a method and apparatus for forming borders and the like around garden areas, the apparatus comprising cardboard sheets having scribed thereon three bending folds, each bending fold extending longitudinally along the surface of the cardboard sheet. More specifically a center fold bisects longitudinally elongate rectangular cardboard pieces, the center fold having formed laterally adjacent thereto two side folds. In use the cardboard piece is bent to form a V-section with the side folds being bent over to form vertical surfaces on either edge of the "V". These surfaces are then joined by various fastening devices and the cardboard structure is inserted into the ground and filled with cement or precast concrete blocks.