fig1 and 13 and where the two edges 110 are bent towards each other arranging four blades at 90 degrees to each other would result in uneven soil displacement working areas for example where angles 160 and 162 are 90 degrees the distance 166 that could exert pressure on surrounding ground would be less than the distance 168 and will be much less than the distance 170 distance 166 forms the shortest footprint distance of the ground spike depending upon which direction external forces pressure the ground spike when it is bearing a load in the ground it may be desirable to maximize the shortest footprint distance such as by making distance 166 approximately equivalent to distance 168 this can be done by varying the angles 160 and 162 as necessary for example an angle of about 95 degrees for 160 and a resulting angle of about 85 degrees for 162 may result in distance 166 approximately equaling distance 168 embodiment 40 further comprises a post receiving socket portion 50 the post supporting socket portion 50 comprises four side walls 51 that are in a substantially perpendicular arrangement to each other reinforcement lines 55 may be stamped or otherwise marked in each side wall 51 the reinforcement lines 55 may be concentrated on the lower portion of the socket portion 50 or may extend further up the side walls 51 one two three or more reinforcement lines 55 may be applied to each side wall 51 clamping.