Choose an area of the landscape that offers your fountain grass full sun. This ornamental grass can tolerate brief periods of light shade.
Dig a hole that is as deep and wide as the original container for the perennial fountain grass. Place the soil on a tarp as it is removed.
Mix generous amounts of compost, rotted leaves or well-rotted manure with the existing soil. Perennial fountain grass thrives in rich, well-drained soil. Mix organic matter into the existing soil until the soil takes on a dark, crumbly appearance. If you have heavy clay soil, add coarse sand and organic matter. Add materials until the soil has a dark, crumbly appearance.
Squeeze the sides of the container to loosen the soil. Grasp the fountain grass at soil level and slide the plant from the container.
Place the ornamental grass in the hole and back fill with the amended soil. Firm the soil around the base of the plant.
Thoroughly water the area to remove air pockets and settle the soil around the plant's roots.
Spread a layer of mulch around the plant to conserve moisture. The root system establishes quicker when soil conditions remain moist but not waterlogged.