i saw a guy on YouTube- there IS a product for em, now. i can't for the life of me, remember what it's called, but it looked like a layer of hydroton, on the soil, to me. prolly wasn't- but looked like.Hi Baron. I'm not sure we should use cedar. Some barks are on the do not use list. These you see here are probable oak and maple. I broke some firewood bark off. I'm hearing some clean pine bark mulch is very good for many reasons including bug prevention. I go with watching for wilt to see when they want water.