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The Drawbacks of Zoysia Grass

Zoysia is a lawn grass with many positive attributes, including the ability to withstand drought conditions because of its deep roots. Like any grass, however, it has its limitations. Weigh the pros and cons of zoysia before planting because it is difficult to get rid of it once established. In addition, consider if zoysia is the right grass for your part of the country.
  1. Growth Habits

    • Zoysia is very difficult to remove, once established, because of its deep roots. Do not plant zoysia grass unless you intend it to be in the landscape a long time. The Alabama Cooperative Extension System website says zoysia spreads approximately 6 inches a year. Because it is a slow-growing grass, it needs time to repair a damaged part of the lawn. It is not usually used on athletic fields because of its slow rate of repair.

    Appearance

    • Although zoysia is one of the more cold-hardy of the warm-season grasses and can be found in transitional and some northern states, it changes its color rapidly when exposed to cold weather. Zosyia has an attractive green color in warm weather. According to the All About Lawns website, it turns to a straw brown or yellow color as soon as the weather turns cold. Unless it is in an area with warm weather throughout the year, zoysia will produce a brown lawn that many find unattractive until the climate warms up.

    Diseases & Insects

    • Zoysia is less vulnerable to diseases than the majority of other turfgrasses, but it is subject to rust and fairy ring. The University of Rhode Island Landscape Horticulture Program website also says the Fusarium blight has caused serious problems on occasion. According to the Aggie Horticulture website, fungicides may be needed to prevent diseases such as brown patch, rust and leaf spot on intensively maintained zoysia lawns. Although it is generally free of problems caused by insects and pests, white grubs can also be be a threat to zoysia grass.

    Miscellaneous

    • Although it grows well in shaded areas in the south, where the temperatures are warmer, zoysia does not do well in the north and transitional states if it receives a limited amount of sun. Zoysia grass also does not do well in areas with soil that has poor drainage. The seed of zoysia germinates slowing compared to other grasses, making it more difficult to quickly establish. The Alabama Cooperative Extension System website says zoysia forms a dense thatch that may require maintenance, such as dethatching, to avoid the need to renovate the lawn.