Forming a clump of densely tufted, fine, hair-like leaves, tufted hairgrass (Deschampsia cespitosa) also is called tussock grass. It produces cloud-like green inflorescence in early summer that turn to a light golden straw color. A cool-season grass, tufted hairgrass is hardy in USDA zones 4 to 9, depending on the variety.
Pick a planting site in partial shade with soil that stays consistently moist.
Dig a hole approximately twice the size of the rootball. Mix into the soil removed from the planting hole three or four shovelfuls of peat moss to help retain moisture. Hairgrass does not like to dry out.
Put three or more shovelfuls of soil into the bottom of the hole and set the rootball on top of it. Backfill the hole, gently firming the soil with a foot as you go.
Form a dam of soil around the edge of the planting hole to catch rainwater.
Set a hose to a slow trickle and place it near the roots of the plant. Allow it to water the newly-planted hairgrass for 30 to 60 minutes.
Sprinkle 1/4 cup of granulated, 10-10-10 all purpose fertilizer near the base of the plant, taking care not to let the fertilizer touch it. Repeat this every spring.