Approx. 1 cubic foot of lavender straw mulch. Can be used as is or mixed with other organic mulch. Our lavender (lavandula x intermedia ‘grosso’) contains a small amount of camphor—a strong taste that gophers, mice and other rodents avoid. Once applied it needs to be watered in, so that the camphor soaks into the ground. It doesn’t affect the taste or quality of any plants treated.