A flexible plastic soil reinforcing element is secured to the retaining face for an earthen formation by folding an end portion of the element upon itself and then securing the end portion to the face. An anchor extends rearwardly from the face and a retaining rod is engaged with the end portion of the soil reinforcing element and the anchor to secure the reinforcing element against separation from the anchor. In one embodiment, the end portion of the reinforcing element is folded upon itself multiple times to increase the shear strength of the element to either side of the anchor. In another the end portion of the reinforcing element is folded back over the reinforcing element for embedment in the earthen formation.