Sod is a turfgrass that has been established by a sod farm. Purchased locally, types of sod may include rolls or plugs. Rolls of sod are purchased and delivered to your property on pallets. The rolls of sod are then laid over the soil, with strips tucked together and then rolled flat with a weighted roller. Plugs of sod are common with warm-season grasses. They are purchased by the bushel or torn from strips of sod. Plugs are planted in the soil in rows apart from one another, and over time they grow and fill in the barren areas.