Hey, I hope somebody can answer this! I'm about to build raised beds on top of my grass lawn. Would it be better to lay down cardboard or 3 sheets of newspaper at the very bottom to smother the grass? The plan is to cover that with some gravel to allow drainage. I'm thinking water couldn't drain through cardboard as well as newspaper, and since the beds will be 12 inches deep anyway, that'll smother the grass pretty well anyway. The "walls" on the bed will be rock. Given all of that, I'm thinking newspaper is best. Am I crazy (as per usual)??
