A headstone flower mounting system includes a headstone that has an upper edge, a front side and a back side. A block has a top side, a bottom side, a first end, a second end, a first lateral side, a second lateral side. The bottom side of the block abuts the upper edge of the headstone. The block is comprised of a material capable of receiving flower stems. A plurality of hook members is extended into the block. A pair of eyebolts extends into the upper edge of the headstone. Each of a plurality of bands is attached to and extends between one of the eyebolts and one of the hook members. A plurality of flowers is extended into the top side of the block.