There is one weed-blocker mulch that I havent seen mentioned... cardboard! All you have to do is go through town asking businesses if they have any boxes they are throwing away. Usually there are whole dumpsterfuls to help yourself to. Just open the boxes out and lay the cardboard down between your rows. soak it well and it is there to stay. Of course, if looks matter to you, a little hay on top pretties it up nicely.(posted 8563 days ago)