Aesthetically, whitegrass is one of those plants that is easily ignored, but it does have a neat, attractive look that can add a subtle lushness or accent to more wild or natural-looking landscapes.
Growing this species in your garden, especially if your property borders woods or wild areas, can help provide a seed source for this native grass, which can help it out-compete invasives such as Japanese stilt grass. White grass makes an excellent replacement for stilt grass--it often grows well in similar conditions, but it has stronger roots which will hold the soil better.
Whitegrass is not suitable as a lawn grass. Its more sparse growth and love of wet, shady areas makes it adapted to very different conditions.
However, it can be grown interspersed with other shade-tolerant ground covers, underneath trees, especially in low-lying areas, along seeps or drainage ditches. It can also be grown on its own in moist, shady areas. The sparse growth typically does not require any mowing or clipping, making it a low-maintenance plant.