Grass seed is the humble starting place of any great lawn. Grass seed comes in many different varieties, including warm and cool season grasses. Warm season seed types include Bermuda grass, centipede, St. Augustine, and zoysia. Cool season grasses include Kentucky bluegrass, ryegrass, and fescue. Many people opt to plant a mixture of grass types, rather than just one.
Sod is grass turf that is connected to the soil beneath it and held together by roots. It is usually grown and cultivated by professional landscapers and landscaping companies. Using sod is an alternative to planting a lawn from seed, resulting in a ready-made lawn. Sod is often sold in large, rolled bundles.
Both seed and sod varieties have different characteristics, depending on type. Grasses can grow by bunching or creeping. Grass blades can be fine or coarse in texture. Likewise, there are both perennial and annual varieties of grass.