A Definition of Sod

Identification

• Basically, sod is grass with its root systems still intact. You place the layers of sod on top of your lawn's soil. For best results, the soil that you grow the sod in should match your soil texture and nutrient qualities as closely as possible. Sod is usually 1/2 to 3/4 inches thick, and is distinguished based on the grass cultivar, height, color and texture. Most sod is composed of various Kentucky bluegrass varieties, according to the University of Vermont Department of Plant and Soil Science.

Benefits

• Sod provides several benefits over seed. Growing a lawn from seed takes much longer than installing sod. Visually speaking, sod provides almost instant results, although it must be well-maintained in order to keep up its appearance. Already grown from seed, sod usually has an easier time becoming established in the soil. Sod is also less prone to soil erosion problems, and tends to be less susceptible to weed invasions, according to the University of Illinois Extension.

Disadvantages

• Despite its many advantages, sod may not always be the best solution for your lawn. First, sod is much more expensive than seed, and there may be fewer varieties of grass available, depending on your area and climate zone. Without careful preparation, your sod may also be incompatible with your soil type and texture, which will prevent it from becoming well-established. Sod also requires a large amount of water during the establishment period.

Tips

• One of the key components of successful sod establishment is soil preparation. Before you purchase your sod, obtain a soil analysis from your local university extension. A soil test provides a detailed and thorough analysis of your soil conditions, including nutrient and pH levels. Once you have tested your soil, apply any fertilizers or other soil amendments well before you sod the lawn, in order to give the products plenty of time to take effect. Always purchase high quality, healthy sod that has been harvested in the last 24 hours for optimal results.