10/16/2026
Is your sprinkler system still running on its summer schedule? As Houston temperatures drop, your lawn needs a lot less water — and too much water this time of year can do real damage.
Fall watering, the right way (per Texas A&M AgriLife):
• Switch to as-needed watering. In fall, AgriLife suggests moving automatic systems to manual, as-needed operation.
A simple test: if your footprints stay pressed into the grass, it's time to water.
• Water early — between 3 and 9 a.m. Morning watering lets grass blades dry quickly. Evening watering keeps the lawn wet overnight and invites disease.
• Measure what you're putting down. Set a few tuna cans around the yard, run the system, and measure. Houston's clay soils can absorb only about ¼–½ inch per watering, so extra water just runs off.
The common DIY pitfall: overwatering. WaterSmart experts call it the most common lawn mistake, and in fall it raises the risk of large patch and brown patch — the brown, circular rings that show up in St. Augustine as nights cool.
ABC's Houston lawn care programs adjust with the seasons, so your lawn gets what it needs and nothing it doesn't.