Enhance your outdoor gardening space with the Rumblestone 46" Tree Ring Collection. This collection contains concrete pavers to be used to form the tree ring and create a barrier for your trees. Use the interlocking pavers to frame the rig around a tree. First, start with site preparation and excavation. Stake out the area where the pavers will be. Dig a small trench, so half of the block fits in the ground. Next the base preparation. Tamp soil in the trench to create a ridged surface. Add 1” of sand to the bottom of the trench. Then, start leveling and laying stones. Lay stone side by side and check for level. Then, stack additional courses with the construction adhesive staggered on the course below. And finally, stack stones in courses, staggering the joints to the wall height.