Abstract: A holding device for paving blocks which has a vertical side for contacting the paving stones is strongly buttressed to hold the paving blocks. At pre-selected points along the vertical side are belts of material perpendicular thereto. Buttressing each belt of material in the vertical edge are gusset members supported by a boss member. The boss member provides for driving a nail into the ground and through the support member in order to hold the holding device for paving blocks in position. The nail is a barbed X-cross-section nail which may be used to secure the holding device for paving blocks.