Abstract: A set of landscaping blocks is provided for building a retaining wall. The set of landscaping blocks include three groups of precast blocks with each group being of a different size and particularly having a different depth. The group of blocks having the greatest depth is utilized to form one or more lower courses of the retaining wall. The group of blocks having the second greatest depth is utilized to form one or more intermediate courses for the retaining wall, and the intermediate courses of block are stacked over the one or more lower courses of block. Finally, the group of blocks having the least depth is utilized to form one or more upper courses of the retaining wall. Once the retaining wall is formed, a backside of the retaining wall assumes a step configuration wherein portions of the upper surfaces of the lower and intermediate courses are exposed. To form the blocks of each group, concrete is poured into a mold having a series of side-by-side sections.