Lawn care calendar for Texas.
Texas A&M AgriLife Extension covers bermudagrass and St. Augustinegrass here, and its bermudagrass text gives different timing for different parts of the state.
Get dates for my ZIP →By LawnYear editorial team · Published · Updated Windows are read from the extension publications listed under Sources; the dates are approximate.
Short answer for Texas
In Texas, for St. Augustinegrass, fertilize Mar 1 to Oct 31; weed control Jan 1 to Mar 31 and Sep 1 to Oct 31; mow Mar 1 to Oct 31 at 2 to 4 in, per Texas A&M AgriLife Extension Service (2022).
For bermudagrass, fertilize Apr 1 to Oct 31; weed control Feb 1 to Mar 31 and Sep 1 to Oct 31; mow Mar 1 to Oct 31 at 1 to 2 in, per Texas A&M AgriLife Extension Service.
Approximate dates for your state. Check with your local cooperative extension office before you act.
Windows by grass and task
| Grass | Fertilize | Weed control | Mow | Water | Source |
|---|---|---|---|---|---|
| St. Augustinegrass | Mar 1 to Oct 31 | Jan 1 to Mar 31Sep 1 to Oct 31 | Mar 1 to Oct 31 at 2 to 4 in | May 1 to Oct 31 | Texas A&M AgriLife Extension Service, 2022 |
| Bermudagrass | Apr 1 to Oct 31 | Feb 1 to Mar 31Sep 1 to Oct 31 | Mar 1 to Oct 31 at 1 to 2 in | May 1 to Oct 31 | Texas A&M AgriLife Extension Service |
Calendar by grass
Grasses the source covers with one shared calendar are shown together. Open a group for each task, its note and its source. Want dates for your ZIP code? Use the lawn schedule by ZIP tool.
St. Augustinegrass
5 tasks
St. Augustinegrass in Texas
Fertilize
Mar 1 – Oct 31
First application in March to April once the lawn is growing and has been mowed at least twice; then 0.5 to 1 lb N per 1,000 sq ft, 1 to 4 times in the growing season, no more than 4 lb N per 1,000 sq ft a year. Last application 4 to 6 weeks before the first frost. Dates are statewide; Texas spans very different climates.
St. Augustinegrass in Texas
Weed control
Jan 1 – Mar 31
Preemergent herbicide for summer annual weeds (crabgrass, goosegrass) when soil temperature reaches about 55 F for 4 to 5 consecutive days. The calendar shows January to March.
St. Augustinegrass in Texas
Weed control
Sep 1 – Oct 31
Preemergent herbicide for winter annual weeds when soil temperature reaches about 70 F for 5 consecutive days.
St. Augustinegrass in Texas
Mow
Mar 1 – Oct 31
Mow at 2–4 in.
Mow at 2 to 4 in weekly, or as often as needed to prevent scalping; never remove more than 1/3 of the leaf at once.
St. Augustinegrass in Texas
Water
May 1 – Oct 31
Irrigate only when needed to prevent wilting, or to replace at least 60% of evapotranspiration. Skip irrigation in rainy periods. Check the irrigation system in March and April before turning it on.
Bermudagrass
5 tasks
Bermudagrass in Texas
Fertilize
Apr 1 – Oct 31
Do not make the first application until the lawn is growing and has been mowed 2 to 3 times (April to May on the calendar); then 0.5 to 1 lb N per 1,000 sq ft, 1 to 4 times in the growing season, 4 to 8 weeks apart. Dates are statewide.
Bermudagrass in Texas
Weed control
Feb 1 – Mar 31
Preemergent herbicide for crabgrass, goosegrass and other summer annual weeds. The text says crabgrass germinates around mid-February in South Texas, early March in North and Central Texas and mid-March in the Panhandle; apply before that.
Bermudagrass in Texas
Weed control
Sep 1 – Oct 31
Preemergent herbicide for annual bluegrass, chickweed, henbit and other winter annual weeds. Skip it if you plan to overseed with ryegrass.
Bermudagrass in Texas
Mow
Mar 1 – Oct 31
Mow at 1–2 in.
Mow at 1 to 2 in weekly, or as often as needed to prevent scalping; never remove more than 1/3 of the leaf at once.
Bermudagrass in Texas
Water
May 1 – Oct 31
Irrigate only when needed to prevent drought stress, or to replace at least 60% of evapotranspiration. Turn the system off in rainy periods.
Two grasses, two publications
Bermudagrass comes from ESC-042. St. Augustinegrass comes from HORT-PU-170, read from a copy hosted on the Harris County AgriLife Extension site. Both say to mow weekly or as often as needed to prevent scalping and never to remove more than a third of the leaf: 1 to 2 in for bermudagrass and 2 to 4 in for St. Augustinegrass.
Feed when the lawn is growing, not on a date
For bermudagrass the first nitrogen waits until the lawn is growing and has been mowed 2 to 3 times (April to May on the calendar); for St. Augustinegrass it is at least twice mowed, in March to April. Rates are 0.5 to 1 lb of nitrogen per 1,000 sq ft, 1 to 4 times in the growing season. St. Augustinegrass is capped at 4 lb a year with the last feeding 4 to 6 weeks before first frost; bermudagrass applications run 4 to 8 weeks apart.
Preemergent herbicide is keyed to soil temperature and region
The St. Augustinegrass publication ties the summer-annual window to soil at about 55 F for 4 to 5 consecutive days and the winter-annual window to about 70 F for 5 consecutive days. The bermudagrass text says crabgrass germinates around mid-February in South Texas, early March in North and Central Texas and mid-March in the Panhandle, and to apply before that. It also says to skip the fall herbicide if you plan to overseed with ryegrass.
Water only when the lawn needs it
Both publications say to irrigate only when needed to prevent wilting or drought stress, or to replace at least 60% of evapotranspiration, and to turn irrigation off in rainy periods. The St. Augustinegrass sheet adds checking the irrigation system in March and April before turning it on. The dates on this page are statewide; the germination dates above differ by region, from mid-February in South Texas to mid-March in the Panhandle.
Sources
The dates and figures on this page come from these publications.
- [1]Texas A&M AgriLife Extension Service ↗ (opens in a new tab)HORT-PU-170 (05/22), St. Augustinegrass Home Lawn Maintenance Calendar; copy hosted on the Harris County AgriLife Extension site (agrilife.org, not .edu).Publication year 2022 · Read 2026-10-29
- [2]Texas A&M AgriLife Extension Service ↗ (opens in a new tab)ESC-042, Bermudagrass Home Lawn Management Calendar; month-by-month table, statewide.Read 2026-10-29