Here are some pics of an extremely steep hill. The people want me to take out and kill everything and then make some sort of no maintenance landscape. The homeowner actually lost a toe from sliding under the mower while trying to mow this The people don't want to invest in a retaining wall or anything and naturally they want the job to be as cheap, but effective as possible. I don;t think mulch or rock would not work out here, so they just want me to use ground cover and some plantings that take up a lot of space. Remember, I need to keep the costs down, or I just won't get this job in this neighborhood. Here are some pictures, thanks for the help. 1200-1400 square feet here.