Miracle-Gro patch magic shaker is a patching mix that takes care of the seed so you can grow thick and beautiful grass anywhere. The magic coir is a unique, super-absorbent, growing material which acts like topsoil. The unique property of coir allows it to absorb eight times its weight in water and expands up to four times its volume to surround the seeds in a moist and protective layer. It continues to care for the seeds, providing them with water and nutrients, so they build stronger roots that survive tough conditions. Add water to the coir when it begins to turn a light brown until dark brown.