Pampas grass is a popular variety of ornamental grass that grows prolifically in many sunny landscapes. When pampas grass grows to its full size, it resembles a large fountain of thin grass blades with feathery fronds in the center. Choose a sunny location with rich soil for your pampas grass. Once the pampas grass is established, a gardener must trim the pampas grass each spring prior to the growing season.
Wear long pants, long sleeves and gardening gloves while you work with the pampas grass because the grass blades can be irritating to exposed skin. The grass blades can also give a gardener cuts if the grass touches the skin during the trimming process.
Kneel on the ground next to the pampas grass and prepare to trim the pampas grass. Grasp a handful of grass and reeds and trim the grass off at the desired height. Place the removed grass and reeds into the garbage bag.
Continue to trim the pampas grass by grasping handfuls of reeds and grass the cutting them off. Work your way through the clump of grass from the outside perimeter of the plant toward the inside of the plant. Work until the entire plant is the desired height.