I have a garden that is on the side of a hill. A friend made 2 flats spots for me. The first year was ok but the soil was awful I had to do lots of feeding! Then a friend of mine who has a tree farm, had a pile of rotten mulch, we brought it in by the dump truck full! Garden did wonderful, except for the bugs! This year was better but the heat and drought took its toll I had to water all the time, and the deer, rabbits and chipmunks were a problem. I think the water attracted them. I am about to throw in the towel myself. But probably won't. Saved a lot of my seeds this year so I don't have to buy as many next year. Did you ever think about box gardening? A little on the expensive side but you can put good soil in them.