Feed St. Augustine on a March calendar date instead of a soil-temperature cue, and you’ll dump nitrogen into grass that’s still dormant, feeding the weeds waking up around it instead of the lawn. Mow Bermuda too short in July heat and it scalps and thins by August. Texas lawns run on a warm-season curve, not a fixed date, and every misstep traces back to treating this state’s grass like it grows on a Northern clock.
The short answer for Texas
Texas lawn care means feeding and mowing a warm-season grass on a warm-season schedule, not the cool-season pattern used further north. The Homestead Post has placed Houston, the reference city for this page, in the warm turf zone, based on the climate normals cited above read against the season tolerances Clemson Cooperative Extension publishes in HGIC 1214. That single classification bends the whole calendar around one curve: growth stops for winter and the lawn browns, then it wakes up again as soil warms in spring, and every mowing, feeding and pre-emergent decision gets timed off that curve rather than off a fixed date on a wall calendar.
Which exact species sits in your yard changes the numbers inside that curve. Clemson publishes a separate maintenance calendar for four of the common warm-season grasses: HGIC 1216 for Bermudagrass, HGIC 1217 for Zoysiagrass, HGIC 1215 for Centipedegrass and HGIC 1218 for St. Augustinegrass. None of the cool-season grasses belong in this state. Kentucky bluegrass, tall fescue and perennial ryegrass need a real winter chill to thrive, and Houston’s summer runs long and hot enough to burn them out well before fall, per the season tolerances Penn State Extension publishes for cool-season turf.
If you haven’t settled on a species yet, that choice comes before any of this matters: The Best Grass Seed for Texas Lawns lays out what each warm-season option costs in water, shade tolerance and mowing frequency.
| Species | Shade tolerance | Drought tolerance | Nitrogen need |
|---|---|---|---|
| Bermudagrass | Low | High | High |
| St. Augustinegrass | Medium to high | Medium | Medium |
| Zoysiagrass | Medium | Medium to high | Medium |
| Centipedegrass | Low to medium | Medium | Low |
| Bahiagrass | Low | High | Low |
Those relative ratings come from Clemson’s HGIC 1214 species profiles, a national reference rather than a Texas field trial, so use the table to compare tradeoffs, not as an exact figure for a particular yard.
Working through the year
The rest of this calendar assumes you already have an established warm-season lawn, the step covered in general terms at Texas Lawn Care. From here on, follow the maintenance calendar Clemson publishes for your actual species rather than a generic number, since a Bermudagrass lawn kept at a St. Augustinegrass mowing height scalps by midsummer and a St. Augustinegrass lawn mowed like Bermudagrass thins out and lets weeds in.
Late winter into spring green-up
Warm-season turf is still dormant here, and this is the pre-emergent window for summer annual weeds like crabgrass, timed before the soil warms rather than off a calendar date. Wait for full green-up before the first nitrogen feeding of the year. Clemson’s species calendars all make this the same point: dormant or half-green grass cannot use nitrogen, so an early feeding just fertilizes the weeds that beat your lawn out of dormancy.
Late spring and summer
Mowing frequency goes up as growth speeds up, and the mowing height itself should follow the species calendar rather than a fixed number, since Bermudagrass is kept noticeably shorter than St. Augustinegrass or Zoysiagrass. Irrigation shifts to deep, infrequent watering rather than short daily runs, which pushes roots down instead of keeping them shallow near the surface. This is also the stretch where chinch bugs and grubs show up in St. Augustinegrass and Bermudagrass respectively, and where core aeration on compacted soil does the most good, ideally right after a rain or irrigation cycle when the plug pulls cleanly.
Fall
The last nitrogen feeding of the season needs to land well before the freeze window opens, not inside it. Around Houston that means finishing before the December 1 to December 19 stretch NOAA’s 1991-2020 normals give for the IAH station, since a late feeding pushes soft new growth into a freeze with no time to harden off. Fall is also the second pre-emergent window, this time for winter annual weeds like henbit and chickweed, and the window for overseeding with annual ryegrass if you want winter color instead of dormant brown.
Winter
Mowing and feeding both stop. A dormant warm-season lawn browns after that first freeze, and that brown is not a dead lawn, it is the plant shutting down top growth to protect its crown and roots until spring green-up starts the cycle over.
What changes across Texas
Houston’s figures describe the mild Gulf Coast end of a very large state, and Texas spans several distinct climate regions that this calendar does not fit equally well. The Panhandle sits far enough north and high enough in elevation that its warm-season lawns go dormant earlier in fall and stay brown longer into spring than anything measured at Houston, and a Bermudagrass or Zoysiagrass lawn there needs its whole spring schedule pushed later.
Hill Country runs cooler at night than the coast because of its elevation, and its thin, fast-draining caliche soils dry out between rains faster than Houston’s clay, which means irrigation intervals there need to be shorter even at the same air temperature. The Rio Grande Valley and the rest of deep South Texas sit at the opposite extreme: winters are milder than Houston’s, dormancy is shorter or in some years barely happens, and St. Augustinegrass and Seashore Paspalum both hold color later into the year there than they do further north.
East Texas gets more rainfall than Houston and holds humidity longer into the day, which raises brown patch and other fungal pressure on St. Augustinegrass lawns. West Texas is the reverse: low humidity and low rainfall favor Bermudagrass and Bahiagrass over the more water-hungry species, and irrigation becomes the limiting factor rather than disease. None of these regional shifts change which grasses are warm-season, but they all shift when each calendar step lands, sometimes by a matter of weeks.
The mistakes this climate punishes
Feeding a warm-season lawn going into fall
Nitrogen applied close to the first freeze pushes tender new growth that has no time to harden off before cold hits. The damage does not show immediately: it shows up the following spring as dead patches and thin crowns where the lawn should be greening back up. The fix is simple: stop nitrogen well ahead of the freeze window, not the week before it.
Seeding a cool-season grass in late spring
Kentucky bluegrass, tall fescue and perennial ryegrass seed sown once the weather has already warmed germinate into a plant that cannot handle a Texas summer. It struggles through the heat, thins under disease pressure, and is usually gone by the time fall arrives, having wasted a season’s water and effort. These species belong in the opposite half of the country’s turf calendar, not layered onto a Texas warm-season lawn.
Scalping the lawn in peak heat
Cutting a warm-season lawn short during the hottest stretch of summer removes the leaf area the plant needs to shade its own crown and roots. The stress shows up within a week or two as a lawn that browns faster in dry spells and lets weeds germinate in the thinned canopy. Raising the mowing height going into the hottest weeks, rather than lowering it, is what the species calendars actually call for.
- Fall feeding damage: shows up the following spring, not right away.
- Cool-season seed sown in spring: fails by summer, every time, in this climate.
- Summer scalping: shows up within one to two weeks as faster browning and weed entry.
Checking this against your county
Every figure on this page is anchored to Houston, and a county in the Panhandle, Hill Country or the Rio Grande Valley will run on a different schedule. Texas A&M AgriLife Extension maintains a county-by-county office network, and the Texas A&M AgriLife Extension website is the place to confirm local frost timing, grass recommendations and any current pest advisories for your specific county before locking in dates from a Houston-based calendar.
Common questions
When should I put down the first pre-emergent of the year in Texas?
Timing follows soil warming, not a fixed date, and it comes before your warm-season lawn greens up, since the goal is to stop weed seed before it germinates. Check with your county’s Texas A&M AgriLife Extension office for the current-year timing in your area, since it shifts with the weather each spring.
Why is my lawn still brown in early spring when the weather has warmed up?
Warm-season grass green-up depends on soil temperature, not air temperature or the calendar date, and a run of cool nights can hold a lawn back even after warm days return. A lawn that stayed green all winter is more likely a cool-season lawn or an overseeded ryegrass topcoat than the base warm-season turf.
Can I grow a cool-season grass like fescue in Texas if I water it enough?
Watering will not fix the underlying problem, which is heat and humidity, not drought. Fescue and other cool-season species decline under disease pressure through a Texas summer regardless of irrigation, which is why none of the species Clemson lists for this zone are cool-season grasses.
Do I need to dethatch every year?
Not necessarily. Dethatch when you can feel a spongy layer of dead runners under the green leaf blades, usually every few years rather than annually, and time it for the growing season so the lawn can recover the same year rather than going into dormancy freshly torn up.