Hello! As you can see on the picture I'm working on installing some new raised garden beds in an area that was previously only grass. We tore out the sod where they're going, and now I have to decide what to fill these with. I know a mixture of quality soil and compost is generally the idea. My big question is whether or not to put something else on the bottom under the soil. I know some people use cardboard or wood chips, but I'm not sure why, or if it's necessary when starting from bare ground. Any input welcome and thanks in advance!