If you water your grass too much, it could lead to disease during this time. If using a sprinkler, be sure to use in the morning so the grass will not burn in the full sun of the day or stay damp at night. St. Augustine grass is a type of warm season grass that is popularly grown in the southern regions of the United States. During extended periods of dry and hot weather, your St. Augustine grass may start to die and the best way to bring it back is to water it at least 3 times a week. Overwatering the lawn drowns the grass plants and can cause yellow or bare spots. Gardeners enjoy this grass type for its compressed grass blades that contribute a dense texture for lawns. It is the least cold tolerant of the warm-season turfgrasses. St. Augustine typically needs 1 inch of water per week. For more information about the best variety for your project and location, please call our office at 281-431-7441. Apply just 1/2 inch of water … Your St. Augustine generally only needs about one inch of water weekly including rainfall. Can you expect Zoysia grass to overtake St. Augustine grass in your lawn? Because of the way St. Augustine grows, it can be hard to get good seed contact with the soil without scalping and damaging the existing lawn. Reduce waterings to once a day after the St. Augustine grass has been in place for 1 to 1 1/2 weeks. Water it deeply to achieve the amount your grass needs and St. Augustine requires about ¾ inch of water twice a week or 1 ½ inch of water every week to revive it. According to the University of Texas, this grass is native to the regions surrounding the Gulf of Mexico. Start watering at this frequency immediately after laying new St. Augustine sod until the sod has been in place for 1 to 1 1/2 weeks. After 2 weeks, you can till the ground and lay your sod. Dethatching: Too much thatch build-up can harm your St. Augustine grass anything over ½ inch spells trouble. Do not overwater St. Augustine grass to avoid pooling water. This can be in the form of rainfall or a sprinkler. Fall Watering for St. Augustine. Thatch is the decomposing layer of organic matter like grass shoots and stems that collects between the soil and your lawn’s grass blades, and it can choke your grass by limiting its access to necessary nutrients, air, and water. St. Augustine sod grows best in warm places that don’t freeze over in the winter. If you want to plant some, wait until the spring or early summer, then spray a glyphosate weedkiller over the planting area to protect the plants from competing grasses. In the fall, you will want to water the St. Augustine less as temperatures begin to drop. Houston Grass Owner Michael Romine answers that question in this video. If you were overly generous with water, start fixing an overwatered lawn as soon as possible. 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