Thank you for your inquiry. First, we've installed a french drain at the top of the slope to eliminate any water flowing from the upper slope of the yard. Second, the mulch used is a hardwood shredded bark mulch, it binds together to alleviate most sliding issues. In addition, as the mondo grasses mature, it will also support the slope and help with any water issues.

So do you lay down landscape fabric on the hill first before putting down the shredded mulch? And will the shredded mulch stay put on a steeper slope hill?