Centipedegrass

Centipedegrass was introduced into the United States from southeast Asia in 1916. Since then it has become the most popular lawngrass in the panhandle of Florida and the third most popular lawngrass in the state.

Centipedegrass is well adapted to infertile, sandy soils. It can be planted by seed, runners, or sod. It is fast spreading and produces a medium textured lawn which is low in maintenance compared to other lawngrasses. It produces an attractive lawn once established, and will withstand some shade.

There are some problems that are associated with centipedegrass. It is susceptible to yellowing which can be due to lack of iron, nematodes, or ground pearls. Also it has poor salt tolerance and becomes dormant through the winter months in north and central Florida.

Fertilization is important with any lawngrass. Although centipedegrass is a low maintenance grass it does require a complete fertilizer at least once a year. If overfertilized centipedegrass produces heavy thatch and is more susceptible to pests. Apply a complete (N-P-K) turf-type, slow release nitrogen fertilizer (e.g., 16-4-8 or 15-4-15) to provide one pound of actual nitrogen per 1000 square feet of lawn.

Centipedegrass may begin to show chlorosis or become yellow. One of the chief causes of this yellowing is iron deficiency. This condition is most severe where soil pH is high (above 6.5) or where calcium or phosphorus is excessive in the soil. Avoid using excessive phosphorus fertilizer unless soil tests results indicate to do so. Lower the soil pH by regular use of acid-forming fertilizer s such as ammonium nitrate or ammonium sulfate. If control of pH is not feasible, or if the soil is naturally iron deficient, iron fertilization is necessary. Chelated or ferrous sulfate iron can be applied evenly and easily with a hose-end sprayer. Apply ferrous sulfate at the rate of 2 ounces in 3 to 5 gallons of water per 1000 square foot. Fertilizers containing iron and a combination material of ammonium sulfate and ferrous sulfate are also available.

The correct mowing height for centipedegrass is 1 1/2 to 2 inches, or if shade 2 to 2 1/2 inches. The lawn should be watered as needed. When watering is needed, it is best to apply 3/4 inch of water. If there is root damage or nematodes your lawn will need water more often.