Summer is generally the best time to plant St. Augustine grass, but the exact timing depends on the method of establishment. St. Augustine grass can be established through seed, sod and plugs.
If you choose sod or plugs, you can establish your lawn at any time during the growing season, which is May through August, as long as water is available. Seeds should be planted in late spring or early summer.
St. Augustine grass is well adapted to the coastal areas of Texas, but can be planted anywhere in the state as long as moisture levels are sufficient; St. Augustine has low tolerance for drought. The best soil is fertile and drains well, with a pH between 5.0 and 7.5.