I have a never ending problem with quack grass creeping into my perennial planting areas. I really need a way to make a long lasting barrier that is not as much work as digging and re-digging a trench along the perimeter of each and every bed. Digging it from inside the bed is a big job, but the really big job is to have it creep back in as soon as my back is turned. Ideas welcome!

DD had the same problem with Bermuda grass in TN. Since I have sissy fescue I only have to trench once a season. Can you put in any kind of bender board around your beds? Or even the metal type? Plastic doesn't hold up so well. There may be a composite-type.