 of an annual or perennial, like a vinegar will, it'll kill the entire root structure. So it takes out the whole thing. With these kinds of products, be careful. Anything you spray will die. Grass, I mean, just tumbleweeds, if you spray it, it will die. So be careful. Be careful around your rosemaries and things. I like to use a shield sometimes. I'll take a piece of plywood or a piece of cardboard.