Landscaping 4 prong Digging Fork from the Defiance Polypropylene Range. This fork has an ash shaft, polypropylene hilt, PYD handle, an extra long socket, and is epoxy coated. The landscaping / garden fork is used for loosening, lifting and turning over soil in gardening and farming. It is used similarly to a spade, but in many circumstances it is more appropriate than a spade: the tines allow the implement to be pushed more easily into the ground, it can rake out stones and weeds and break up clods