 a herbicide for weed control. You can use straw, same goes there, that it hadn't been sprayed with a herbicide to kill the weeds and the wheat. And you can even use a newspaper. You can just lay a newspaper out, cover the soil. It doesn't have to be the full three inches thick, of course, if you use a newspaper. But again, that'll shade the soil and hold the moisture in, and that'll work really well. I was trying to keep the roots cool