Typically a native meadow would include some grasses that are low spreaders to help the perennials fill in between the larger plants. Bunching grasses need to have some space to perform best. Too crowded and they will lose their characteristic form. When you are planting and maintaining a landscape for aesthetic/ornamental purposes maintenance tends to look more at plants as individual performers. In the larger landscape, where the goal is more of a plant community as a whole, the individual plants are viewed as an ensemble. It is a different intent than a landscape like these at Argyle. Whichever landscape is chosen the owner, the designer and those performing the maintenance, must all be on the same page.