Spring in Texas is exciting — bluebonnets line the highways, temperatures feel perfect, and your lawn is waking up from its winter nap. It’s also the most critical time of year for lawn care. What you do in March, April, and early May sets the tone for how your yard performs through the brutal Texas summer.

Whether you’re in the humid east near Houston, the clay-heavy prairies around Dallas, or the dry heat of West Texas, these spring lawn care fundamentals apply. Let’s dig in.

Know Your Grass

Texas is warm-season grass territory, and the big three are:

  • Bermuda grass — The king of Texas lawns. It’s heat-loving, drought-tolerant, and tough enough to handle kids, dogs, and weekend football games. It thrives in full sun and goes dormant (brown) in winter.
  • St. Augustine grass — The most popular lawn grass in Texas, especially in the eastern half of the state. It handles shade better than Bermuda and produces a thick, lush carpet. It needs more water and is more susceptible to chinch bugs and fungal diseases.
  • Zoysia grass — A great middle ground between Bermuda and St. Augustine. Dense, attractive, and reasonably drought-tolerant. It’s slower to establish but requires less maintenance once mature.

Buffalo grass and centipede grass are options in some areas, but most Texas homeowners are working with one of the big three. Knowing your grass type matters because mowing height, watering needs, and fertilization timing are all grass-specific.

Start with a Soil Test

Texas soils vary wildly from region to region. You might have black clay in Dallas, sandy loam in East Texas, or caliche near San Antonio. A soil test ($15–$25 through your county extension office or Texas A&M AgriLife) removes the guesswork and tells you:

  • pH level — Texas soils are often alkaline (7.0–8.0+). Most grasses prefer 6.0–7.0. You may need sulfur to lower pH or iron supplements to compensate for nutrient lockout in alkaline soils.
  • Nutrient levels — Exactly how much nitrogen, phosphorus, and potassium your soil needs
  • Organic matter — Low organic matter (common in Texas) means poor water retention. Adding compost helps enormously.

Test every 2–3 years, or anytime your lawn isn’t responding to normal care.

Fertilize at the Right Time

Timing is everything with Texas fertilization:

  • Wait until your grass is actively growing. For Bermuda, that’s typically when nighttime temperatures stay consistently above 60°F (usually mid to late April in North Texas, earlier in South Texas). For St. Augustine, it’s a bit later.
  • First application: A slow-release nitrogen fertilizer at about 0.5–1 lb of nitrogen per 1,000 sq ft. This feeds the green-up without pushing unsustainable growth.
  • Don’t over-fertilize. More fertilizer means more mowing, more water demand, and more disease susceptibility. Follow your soil test recommendations.
  • Consider an iron supplement if your grass looks yellow-green despite adequate fertilization. Iron chlorosis is extremely common in alkaline Texas soils.

Skip the cheap “weed and feed” products. Apply fertilizer and weed control separately for much better results.

Attack Weeds Early

Weed control in Texas is a two-phase game:

Phase 1 — Pre-emergent herbicide (February–early March) Apply before soil temperatures reach 55°F at a 4-inch depth for three consecutive days. This prevents crabgrass, grassburs, and other summer annual weeds from germinating. If you’re reading this in April and missed the window, you’ll need to manage these weeds with post-emergent products as they appear.

Phase 2 — Post-emergent herbicide (as needed) Spot-treat broadleaf weeds like dandelions, clover, and dollarweed with a selective herbicide. Important Texas-specific notes:

  • Don’t apply herbicides when temperatures exceed 90°F — you’ll damage your grass
  • St. Augustine is sensitive to certain herbicides (avoid 2,4-D at high rates)
  • Always read the label for your specific grass type

Hand-pulling is always an option for small weed populations and is the safest approach near flower beds and gardens.

Mow Like a Pro

Proper mowing makes a bigger difference than most people realize:

  • Bermuda grass: 1–2 inches. Bermuda actually performs best at lower heights with frequent mowing.
  • St. Augustine grass: 2.5–3.5 inches. Never scalp St. Augustine — it recovers slowly and leaves the soil exposed to weeds and sun damage.
  • Zoysia grass: 1.5–2.5 inches.

Universal mowing rules:

  • Never remove more than one-third of the blade at once
  • Keep blades sharp — dull blades tear grass and create entry points for disease
  • Mow when the grass is dry
  • Leave clippings on the lawn (they decompose quickly and return nutrients to the soil)
  • Vary your mowing pattern to prevent soil compaction and grain

During the spring growth surge, you may need to mow twice per week. That’s normal — it means your lawn is healthy.

Water Smart

Texas water management is about efficiency:

  • Water deeply, not frequently. Most Texas lawns need about 1 inch of water per week during spring, increasing to 1.5–2 inches in summer. Deep watering encourages deep roots.
  • Water early in the morning (before 10 AM) to minimize evaporation.
  • Watch for your lawn’s thirst signals. When grass blades start to fold or curl, or footprints stay visible, it’s time to water.
  • Know your local water restrictions. Many Texas cities limit watering to specific days and times, especially during summer.

If you have an irrigation system, run a catch-cup test this spring to check for even coverage. Uneven watering causes uneven growth, brown spots, and wasted water.

For more on managing Texas lawns through the hot months, check out our post on maintaining a healthy lawn in Texas late-summer heat.

Aerate for Better Roots

If your soil is compacted (common with Texas clay), core aeration in spring is a game-changer. The best time to aerate warm-season grasses is when they’re actively growing — late April through May for most of Texas.

Aeration improves water penetration, reduces runoff (critical on clay soils), and helps fertilizer reach the root zone. It’s especially important for St. Augustine lawns, which build up thatch over time.

Deal with Thatch

St. Augustine in particular is prone to thatch buildup — that spongy layer of dead roots and stems between the grass blades and the soil. A thin layer (under 0.5 inches) is fine, but anything more starts blocking water and nutrients.

If thatch is excessive, dethatch in late spring when the grass is growing vigorously and can recover quickly. A power rake or vertical mower does the job efficiently.

Watch for Spring Pests

Spring brings out several Texas lawn pests:

  • Chinch bugs — The #1 enemy of St. Augustine grass. They suck moisture from grass blades, causing yellow patches that expand over time. Check sunny areas near driveways and sidewalks first.
  • Grubs — White grubs feed on roots underground. If you had damage last year, apply a preventive treatment in May or June.
  • Fire ants — A Texas classic. Broadcast bait products are the most effective approach, followed by individual mound treatments for remaining colonies.
  • Brown patch fungus — Can flare up during cool, wet spring weather. Improve drainage and air circulation, and avoid evening watering.

For more on transitioning out of spring into summer, see our post on transitioning from summer to fall lawn care in Texas.

The Bottom Line

Spring lawn care in Texas is about working with your climate, not against it. Test your soil, choose the right grass, fertilize at the right time, and water efficiently. These fundamentals make everything else easier — from pest control to weed management.

The effort you put in now will pay off all summer long with a lawn that stays green, thick, and healthy even when temperatures hit triple digits.

Want the complete Texas lawn care playbook? Lush Lawns: The Texas Homeowner’s Guide covers every season with practical advice tailored to Texas grasses, soils, and weather patterns. Pick up your copy and make this your lawn’s best year yet.