How to Make St Augustine Grass Healthier


St Augustine grass grows from the east parts of the Carolinas down through Florida, across to Texas and in central and southern California. It is a warm-season grass tolerant to high temperatures, mild winter climates, high salt levels and pH levels ranging from 5.0 to 8.5. Performing regular maintenance and taking proper care of your St Augustine grass will produce a healthy lawn. This includes watering, cutting and fertilizing on a set schedule.

Step 1

Water St Augustine grass when the top 2 inches of soil are dry or the blades of grass begin to wilt. Supply ½ to ¾ inches of water uniformly to the lawn. The number of days between watering will vary, depending on your location and rainfall.

Step 2

Water your grass early in the mornings between the hours of 2 a.m. to 8 a.m. when possible. Use an irrigation system, such as sprinklers to supply the water.

Step 3

Measure the amount of water at several locations around the lawn to ensure proper amounts in all areas. Use rain gauges or small containers to do this.

Step 4

Mow the St Augustine grass when it reaches 1 ½ to 4 inches in height. Never set the mower to cut more than one-third of the overall height of the grass at a time.

Step 5

Mow the grass more during the spring and summer months when it is actively growing. Do not mow the grass from November through March, unless needed.

Step 6

Use a fertilizer for your specific area and soil conditions two weeks after growing season begins in the spring. Apply the fertilizer as directed evenly over your entire lawn. Apply from one to five more applications of fertilizer on a regular monthly schedule until fall.

Step 7

Inspect your St Augustine grass for any signs of weeds or diseases. Regularly maintained lawns produce healthy grass that typically will prevent these problems from occurring.

Things You'll Need

  • Water
  • Mower
  • Fertilizer


  • University of California: Healthy Lawns: St Augustine Grass
  • University of Florida Extension: St Augustine for Florida Lawns
  • Maintenance of Saint Augustine Lawns

Who Can Help

  • USDA: Cooperative Extension Offices
  • University of Arkansas: Lawn Care Calendar for St Augustinegrass
  • Texas Cooperative Extension: St. Augustine Grass
Keywords: produce healthy grass, proper care of St Augustine grass, produce a healthy lawn, St Augustinegrass, Saint Augustine grass

About this Author

Diane Dilov-Schultheis has been writing professionally since 2000. She is a food and travel writer who also specializes in gaming, satellites, RV repair, gardening, finances and electronics. She is a member of the Society of Professional Journalists and has been published in Southwest, Intel, TravelChannel, AmericanAirlines, Poker4Amateurs, AOL, CityGuides, Yahoo, GardenGuides and more. Dilov-Schultheis is an electronics media specialist and has a degree in Accounting.