St Augustine grass is a fast growing, widely used, warm season grass used extensively here in Florida.
St Augustine spreads on top of the ground. If you mow the grass too low, you can scalp the grass and discourage routing. St Augustine grass should be mowed at a height of 2.5 to 4 inches. You should not remove more than 1/3 of the blade of grass to avoid leaving clumps in the yard. By mowing more often you will avoid grass clippings and enhance the beauty of the lawn.
Watering of St Augustine should be done bi-weekly during the growing season with at least 1" - 1 1/4" of water per week. The best time to water is in the early morning before sunrise. Watering while the sun is out will evaporate the water too quickly and not allow it to soak into the soil.