I already have several wood raised bed boxes, and my dad just brought wonderful pre-cut wood so I can assemble more. Question...I believe I know the answer. I would like to set some up in extremely weedy areas, like bindweed, whatever that creeping stuff, i.e. the creeping charlie vs creeping jenny. Don't suggest that I spray, because I will not touch a chemical to my soil. These are "inherited" weeds, not my own doing,a dn a neighbor already told me the olny thing he could think of was Roundup. Not going there. A previous raised bed at my other house...yes, they just came right up through the thickness of the soil. Would it help to put some sort of mat/barrier down before layering in soil and compost? And what? I don't want plastic. I was thinking newspapers???