There is a lady that want's me to take an old vegtable garden and turn it into a patch of grass. She moved into the house last year and the vegtable garden if full of weeds up to my shoulder. The former owner had it nicley mounded so it is not possible to cut with a mower. How would I go about doing this? Do I need to rototill the ground a couple times? or should I just spray the garden with roundup once it turns green. Pull the weeds, Rake it level, Roll it and plant seed? I don't have a rototiller but I am sure I can rent one from somewhere. To me rototilling won't kill the weeds and they will grow back up. She has a beautifully unkept lawn with no weeds anywhere but in the garden and around the edge of the garden. Also what are the advantages of sod over seed and vice versa? I've never layed sod before. The whole patch is approxamitly 10 x 20 feet at the most.