I have a customer that wants a border on the front of her beds and paver patio. Wanted something like monkey grass yet short enough to step over at the paver patio. She is having a bit of issue with water runoff and was thinking this would also help diverting some of the water from the patio. Does this sound like a good idea? After some research on borders and low growing I came up with dwarf mondo grass which grows to be about 4". Area is partial sun/shade. 30 ft total. Any suggestions on saving on bulk purchasing as well?