What Diane said... good luck trying to kill lilies, bet you can't. That's why they're perfect for the job. Incredibly prolific... we have 'em everywhere. If you do no have them on your property, PM me and you can come get a cart full. That said, our "wind barrier" is maybe 4-5' high. We have an exceptionally long "run" of sand in front of our pool. This just helps break that. Works well. I'd try the simplest solution first (plants) then go from there.