Yard is very important corner of your great house because it is the place you can relax in the upcoming warm days. So when you plan to design your house exterior, don’t ignore the yard landscaping. And if you happen to have a yard includes a hill or hills
Good idea if you have rock solid ground that is hard to dig up. If you don't cover the holes you can use them for herbs & annuals. also lined with weed barrier cloth & used rebar in several places for stability. It makes maintenence super easy.