SAWS News: Shhh, Your Landscape is Sleeping
Aquifer Beaker

Edwards Aquifer

Aquifer Level 678.8'
7/17/19 - Official

The Edwards aquifer and its catchment area in the San Antonio region is about 8,000 square miles and includes all or part of 13 counties in south-central Texas.

Learn More »


Year-Round Watering Hours

Watering with an irrigation system or sprinkler is allowed any day of the week before 11 a.m. or after 7 p.m.

Learn More »


Aquifer Level 678.8 | Year-Round Watering Hours

Log In

Pay Your Bill Online

Already registered? Log in now.

Forgot your password?

New User

My Account Page

No user account? No problem.

Sign Up Now


Shhh, Your Landscape is Sleeping


This is the time of year when your landscape doesn’t need much water. Warm season turf grasses such as Bermuda grass, zoysia and St. Augustine go dormant.

This doesn’t mean there’s a complete absence of physiological activity, but rather a period of “hibernation.” For example, no photosynthesis is occurring, but roots still need to be moist for cellular processes and slight growth.

Natural rainfall usually accomplishes this task. If not, watering once every 30 to 45 days is sufficient. To help remember when to water, try choosing three holidays about one month apart to determine when to water.

Watering more than once every 30 to 45 days will not only likely suffocate the grass roots, but also creates the perfect conditions for lawn fungi.

Some typical lawn fungi includes:

  • Brown patch — appears as brownish-grey expanding, rounded dead areas.
  • Take-all patch — very common fungal disease in St. Augustine characterized by yellowing of the grass.
  • Gray leaf spot — although it typically appears in late summer, this fungi is the result of high moisture and humidity combined with cooler temperatures, which is often the case during our mild winters. The leaf spots are grayish in color with purple margins.
  • Dollar spot — the disease appears as round, brown-to-straw-colored sunken spots approximately the size of a silver dollar. Hybrid Bermuda grasses and zoysia are most susceptible.

Cutting back on watering and reducing fertilizer, especially those with high nitrogen content, are the best ways to prevent fungi. Nearly all lawn fungi flourish in cool temperatures and abundant moisture.

Instead of widespread irrigation, spot water or hand water dormant and evergreen shrubs, perennials and trees once every 4 weeks.

Back to SAWS News Next: SAWS Responds to Sewer Spill along Wurzbach Parkway