A customer has a bed that has some undesirable ground level plants, weeds, and dead stuff in it. It's about 8x16 or something. It's about 6-8 inches too low and u can see some unsightly concrete on the side of his house where there should be dirt. So needless to say, he wants the level raised. My question is, what is the best way to do this? I was planning on renting a tiller to just til up all that junk in the bed. Should I spray it with kills all first or something though or will the tiller be enough to destroy the plants? Furthermore, should I till the plants and then rake and scoop out any roots or plants I can to ensure for less chance of them popping up through the new dirt? Another thing; How do I level it? Should I get one of those small flat tools that u press down on the soil or should I just put the dirt at 2-3 inches above the desired level to plan for settleing?