I've just gotta ask, how much do you pay for Image? Do you realize that it can be absorbed by the roots of nearby desirable plants? Read the label. It's great for nutsedge in lawns; that is what is was developed for, but it will damage ornamental plants.give them 2-3 sprays at the roots and a week later they're yellow and dying. It takes awhile to get them all, those are tough SOBs. Roundup goesn't kill the roots and nuts.