Long story short, I couldn't get the garden tilled this year. Instead I purchased some "garden fabric" that doesn't let the weeds grow through.I layed it out and cut holes where I wanted the plants. I loosened up the soil in those spots and transplanted my veggies. So far so good...Except... on hot days the tomatoes look like they are going to wilt to nothing. Has anyone else gardened this way? Any pointers? I'm in northern pennsylvania. Any thoughts would be appreciated.