How to Choose and Install Turf on a Sloped Yard
https://mag-wiki.win/index.php/How_to_Choose_and_Install_Turf_on_a_Sloped_Yard
Choosing turf for a slope means picking one with deep roots like Marathon or Bermuda to prevent erosion. Before installing, level the ground, tamp it firmly, and secure the top edge with a timber border to stop sliding. Roll turf horizontally across the hill, not vertically, and water daily until roots grip the soil well.