BEGINNER'S GUIDE TO LEAF MULCH - I am going to be a bit direct here, but I think you need to hear it. And I need to preface what I’m about to write by stating that I am not being melodramatic, hyperbolic, or exaggerating. Here me now – adding leaf mulch is the single best thing you can do to your garden. It’s better than just adding fertilizer, it takes less effort than composting, it’s free, and it naturally will suppress weeds for the next entire growing season.