Hedge rows are a classic and elegant option for dividing a courtyard garden with ornamental grasses. They provide a natural and organic look to the space while also offering privacy and sound insulation. Hedge rows can be created using various types of evergreen shrubs, such as boxwood, yew, or privet, depending on the desired height and density. The lush green foliage of the hedge rows creates a beautiful contrast with the ornamental grasses. With proper trimming and maintenance, hedge rows can be shaped into various forms, adding a touch of artistry to your courtyard garden.