Lawn Care in Texas— Climate and Grass Overview
Texas spans more USDA hardiness zones than almost any other state, running from Zone 6b in the Panhandle to Zone 9b along the Rio Grande Valley. Bermuda grass is the workhorse of Texas lawns - heat-tolerant, fast-spreading, and relatively forgiving in the state's clay and sandy soils. St. Augustine dominates shaded and coastal yards in Houston and South Texas, while Zoysia is gaining ground in DFW for its lower mowing frequency. Buffalo Grass covers large areas of West Texas where rainfall is too scarce to support anything else.
The single biggest lawn challenge in Texas is soil diversity. North Texas DFW sits on expansive black clay (Blackland Prairie) that shrinks in drought and heaves in wet seasons, stressing turf roots year-round. Houston's sandy loam drains freely but requires frequent fertilization. The Hill Country is underlaid with thin rocky limestone soil that limits root depth. Understanding your local soil type is the first step to a successful Texas lawn.
Spring Lawn Care in Texas
Spring lawn care in Texas starts earlier than almost any other state. Apply pre-emergent crabgrass herbicide when soil temperatures hit 55 degrees F at the 2-inch depth - in South Texas this can be as early as late January; in DFW it typically falls in late February to early March. Timing this correctly is the single highest-ROI lawn task of the year. Missing the pre-emergent window by even two weeks allows crabgrass to germinate and establishes a weed crop that is extremely difficult to eliminate.
First mowing of Bermuda and St. Augustine should wait until the grass is actively growing and soil temperatures are consistently above 65 degrees F. Scalping Bermuda in late February or early March (cutting to 1 inch) removes dead top growth, promotes lateral spread, and helps the lawn green up 2 to 3 weeks faster. Apply a slow-release nitrogen fertilizer (such as 15-5-10) once the grass has fully greened up, typically March in South Texas and April in DFW. Never fertilize dormant turf.
Summer Lawn Care in Texas
Texas summers demand irrigation discipline. Bermuda performs best at a mowing height of 1.5 to 2 inches during peak summer; St. Augustine should be kept at 3 to 3.5 inches to shade soil and reduce water evaporation. Water deeply and infrequently - applying 1 inch of water once or twice per week is more effective than light daily watering, which encourages shallow roots. Early morning watering (5 to 8 AM) reduces evaporation and fungal disease pressure.
Chinch bugs are the most damaging summer pest in Texas St. Augustine lawns. They feed in hot, dry conditions and cause irregular dead patches that look like drought stress. Check by parting the grass at the edge of a dead patch - adult chinch bugs are small (1/5 inch), black with white wings, and visible to the naked eye. Treat with a labeled bifenthrin or carbaryl insecticide at first sign. Grubs (white grubs from June beetle and masked chafer) peak below the surface in July and August and are best treated preventively in late June.
Fall Lawn Care in Texas
Fall is the most active lawn season for North and Central Texas homeowners. Core aerating Bermuda and Zoysia lawns in September breaks up clay compaction accumulated through the summer and improves water infiltration before cooler temperatures arrive. Apply a winterizer fertilizer high in potassium (such as 0-0-22 or 5-10-31) in October to harden grass before dormancy - potassium strengthens cell walls and improves cold hardiness significantly.
St. Augustine lawns in South Texas benefit from a fall pre-emergent application in September to prevent cool-season weeds like annual bluegrass and henbit from establishing. In North Texas, make the final Bermuda mow at 1.5 inches before the first freeze. Leaving Bermuda too tall going into winter increases thatch and slows spring green-up.
Winter Lawn Care in Texas
Most Texas Bermuda and Zoysia lawns go fully dormant and turn tan from November through February, which is normal and not a cause for alarm. St. Augustine in South Texas (Zones 8b through 9b) often retains color through mild winters but will brown in hard freezes. Never fertilize dormant warm-season turf - nitrogen encourages tender new growth that is immediately damaged by frost.
Winter is the ideal time for soil testing. The Texas A&M AgriLife Extension lab provides affordable analysis - a soil test every 2 to 3 years prevents over-fertilizing and identifies pH problems before they compound. Service mower blades and irrigation systems while the lawn rests.
Most Common Lawn Problems in Texas
Chinch Bugs (St. Augustine)
The most destructive pest in Texas St. Augustine lawns, chinch bugs feed on grass stems and inject toxins during hot, dry summer months from June through September. Damage appears as expanding irregular brown patches, often starting near driveways and sidewalks where heat concentrates. Confirm by pressing a coffee can with both ends removed into the turf edge and filling with water - chinch bugs float to the surface. Treat with bifenthrin at the first confirmed sighting.
Brown Patch Fungus
Brown patch is the most common lawn disease in Texas, particularly in St. Augustine and tall fescue in fall (September through November) and spring (March through April) when temperatures are 60 to 80 degrees and humidity is high. Circular or irregular brown patches with a smoke-ring darker border are the signature symptom. Avoid evening watering, reduce nitrogen applications in fall, and treat with azoxystrobin or myclobutanil fungicide at first sign.
Crabgrass
Annual crabgrass is the most common summer weed in Texas lawns, germinating when soil temperatures hit 55 degrees in spring. It thrives in thin, stressed turf and establishes thick mats by July. The only effective control is a pre-emergent herbicide applied in late February through early March before germination. Post-emergent control is difficult once plants are established and ineffective after seed head formation in late summer.
Take-All Root Rot
Take-all root rot is an increasingly common fungal disease in Texas St. Augustine lawns, causing yellowing and decline that resembles nutrient deficiency or drought. It attacks the root system, making affected areas fail to respond to watering or fertilization. It is most severe in spring and fall in poorly drained soils. Improve drainage, raise mowing height to 3.5 inches, and apply a peat moss top-dressing (1/4 inch) in spring to suppress the pathogen.