I had a large apartment complex call wanting an estimate to correct an erosion problem..They have two steep hills that is just almost completely dirt-no grass..One of the hills is an easy fix - some timbers and mulch..The other hill is a much larger area and has several full grown trees on it..The problem is that the hill is about 35Degree slope and is very irregular...Timbers and other barriers wouldn't really work..The area is in a triangle shape and I was thinking about outlining the area in nandinas and also make several cross sections with the nandinas and then placing junipers and ground cover within the perimeter then add a layer of mulch..Also I would add landscape fabric..Does anybody have any suggestions???Also what would be a good price to charge for the plantings.??.Probably will take about 150 nandinas, 75 junipers and several 2" ground cover containers..This is about a 3 day job...Thanks for the help...Clean-Cut