Zoysia grass is a warm weather grass that will turn brown during the cool temperatures of the fall and winter season. While this species of grass is drought tolerant, it does require a specific watering schedule. According to Texas A&M University, water requirements must be met even during dormancy periods. Failure to irrigate the grass during the cool winter months may damage the zoysia root system. All watering to zoysia lawns must be in the early mornings to reduce the possibility of disease.
Irrigate the zoysia lawn when the grass begins to turn green in early spring. Utilize a timed irrigation system or a garden hose with a sprinkler attachment. The garden hose will require the sprinkler to be moved periodically during the watering process.
Water the zoysia lawn deeply, to a full depth between 4 inches and 6 inches deep. This may entail taking some samples of soil around the edges of the zoysia lawn to ensure the deep watering method.
Apply 1 inch of water to the zoysia lawn every week during the mid-summer months. According to Texas A&M University, it is best to apply this full amount of water two times or three times during the week. In other words, apply a ½ inch of water twice a week or 1/3 inch three times every week during the growth season of the zoysia lawn.
Irrigate the zoysia lawn during winter dormancy if a drought is experienced. The lawn may only require a ½ inch of water, every other week, during its dormancy period.
- Application of approximately a ½ inch of water per week during a drought period in mid-summer is enough moisture to keep the zoysia lawn alive.
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