Is your beautiful North Texas lawn suddenly looking more like a patchy, weed-infested battlefield? You are not alone. From stubborn crabgrass to invasive broadleaf invaders, keeping a vibrant green lawn in our hot, unpredictable climate feels like a constant battle. Many homeowners spend hours researching, only to end up confused by confusing labels and harsh chemical warnings.
Choosing the right weed killer here in North Texas is tricky. We need products that handle our intense summer heat but won’t fry the Bermuda or St. Augustine grass we love. Using the wrong product means wasted money and, worse, a damaged lawn. It’s frustrating when you follow the directions, but the weeds just keep coming back stronger than before.
This guide cuts through the confusion. We will break down the best, most effective weed killers specifically proven to work in the North Texas environment. You will learn exactly which ingredients target your specific lawn pests safely. Keep reading to discover the secrets to achieving that lush, weed-free turf you deserve this season.
Top Weed Killer For North Texas Lawns Recommendations
- Roundup For Lawns₁ is a ready-to-use tough weed killer for Northern grasses that kills weeds, roots and all (when used as directed), with up to 3 month weed control (as listed)
- Kills 253 types of weeds (see inside booklet for weed list), including crabgrass, dandelion, clover, yellow nutsedge, poison ivy, chickweed, oxalis, and purslane
- Roundup For Lawns₁ starts working immediately and is rainproof in 3 hours
- Use this tough weed killer on listed Northern grasses, including Kentucky Bluegrass, Perennial Ryegrass, Fescue spp. including Tall, Red, and Fine Leaf Fescues, and Zoysiagrass
- The easy reach extendable spray wand makes application a breeze with its continuous spray
- Kills 253 types of weeds (see inside booklet for weed list), including crabgrass, dandelion, clover, yellow nutsedge, poison ivy, chickweed, oxalis, and purslane
- The Roundup For Lawns₁ Refill is the fast and easy way to refill any Roundup For Lawns₁ container
- Roundup For Lawns₁ is a ready-to-use tough weed killer for Northern grasses that kills weeds, roots and all (when used as directed), with up to 3 month weed control (as listed)
- Roundup For Lawns₁ starts working immediately and is rainproof in 3 hours
- Use this tough weed killer on listed Northern grasses, including Kentucky Bluegrass, Perennial Ryegrass, Fescue spp. including Tall, Red, and Fine Leaf Fescues, and Zoysiagrass
- Weed killer for lawns: Kill weeds in your lawn, including dandelion, chickweed, clover, crabgrass and foxtail with the Ortho WeedClear Lawn Weed Killer Ready-to-Spray
- Fast-acting weed control: This weed control product kills listed weeds like crabgrass, dandelion, clover, chickweed and creeping charlie down to the root and gets results with 1 application
- Broadcast treatment for weeds: Won't harm lawn grasses when used as directed - use on lawn grasses including Bermudagrass, Buffalograss, Fescues, Kentucky Bluegrass, Ryegrass and Zoysiagrass
- Spray weed killer: Apply to weeds that are young and actively growing by connecting your garden hose to the sprayer, sliding the switch to "ON" and spraying evenly until the lawn is wet
- Ready to spray: This 32 oz. container of Ortho WeedClear Lawn Weed Killer Ready-to-Spray treats up to 5,000 sq. ft.
- KILLS TOUGH WEEDS* LIKE CRABGRASS: Kills over 200 types of weeds*, including hard to kill weeds like Clovers, Dandelions and Crabgrass *listed
- PREVENTS WEEDS & CRABGRASS UP TO 6 MONTHS: One step prevents listed broadleaf weeds, like Crabgrass, for up to 6 months
- CREATES AN EXTENDED 6-MONTH CONTROL BARRIER: Creates an extended, 6-month control barrier that prevents new weeds* from sprouting
- TARGETS HARD TO KILL WEEDS: Targets hard to kill weeds*, destroying them down to the root
- KILLS TO THE ROOT: BioAdvanced Lawn Weed Killer controls listed weeds down to their roots and can cover up to 8,000 sq. ft. of lawn
- KILLS OVER 200 WEEDS: Kills over 200 listed lawn weeds, including clover, dandelion, dollarweed, and chickweed
- EASY APPLICATION: One application will kill listed weeds and won't harm your lawn (when used as directed)
- VERSATILE FOR YOUR LAWN: Formulated for both Southern and Northern lawns like Fescue, Kentucky Bluegrass, Bermuda, Buffalo, and some varieties of St. Augustinegrass
- RAINPROOF PROTECTION: Enjoy rainproof protection in 1 hour with this lawn weed killer spray
- Roundup For Lawns3 is a ready-to-spray tough weed killer for Northern grasses that kills weeds, roots and all (when used as directed), with up to 3 month weed control (as listed)
- Kills 253 types of weeds (see inside booklet for weed list), including crabgrass, dandelion, clover, yellow nutsedge, poison ivy, chickweed, oxalis, and purslane
- Roundup For Lawns3 starts working immediately and is rainproof in 3 hours
- Use this tough weed killer on listed Northern grasses, including Kentucky Bluegrass, Perennial Ryegrass, Fescue spp. including Tall, Red, and Fine Leaf Fescues, and Zoysiagrass
- Simply connect the Roundup For Lawns₃ sprayer to a garden hose and turn on the water; 1 quart treats up to 5,000 sq. ft.
- KILLS & PREVENTS WEEDS* UP TO 6 MONTHS: Kills broadleaf weeds*, including Dandelion, Clover, Chickweed and Henbit with a proven blend of weed killers *Listed
- CRABGRASS PREVENTION: Prevents grassy and listed broadleaf weeds such as Crabgrass, Annual Bluegrass, Common Dandelion, Goosegrass and Spurge for up to 6 months
- IDEAL FOR SOUTHERN LAWNS: Improve your lawn care with this broadleaf weed killer that treats up to 4,000 square feet of southern turf, including all varieties of St. Augustinegrass and Floratam
- READY FOR THE SEASON: With one application, this crabgrass preventer offers season-long weed control
- SIMPLE APPLICATION: Apply these weed killer granules with a rotary or drop spreader and water lightly 24 hours after applying
The Essential Buying Guide for North Texas Weed Killers
North Texas summers are hot and dry. This weather makes keeping a green, healthy lawn tough. Weeds love to pop up, especially tough ones like St. Augustine and Bermuda grass invaders. Choosing the right weed killer is key to a beautiful yard. This guide helps you pick the best product for your North Texas lawn.
Key Features to Look For
When shopping, focus on these important features. They make a big difference in success.
- Targeted Action: Does the product kill only the weeds, or will it harm your good grass? Look for “selective” weed killers. These target broadleaf weeds (like dandelions) but leave turf grass alone.
- Weed Type Specificity: North Texas has unique weeds. Ensure the label clearly states it kills common local pests like dollarweed, clover, or henbit.
- Temperature Tolerance: Many strong weed killers stop working or damage grass when temperatures are very high (over 90°F). Check the label for safe application temperatures for our region.
- Pre-Emergent vs. Post-Emergent: Pre-emergents stop seeds from sprouting. Post-emergents kill weeds already growing. You often need both for a complete plan.
Important Materials and Ingredients
The ingredients determine how the product works. Understanding them helps you choose quality.
Active Ingredients
The main chemicals do the work. For post-emergent control, look for ingredients like:
- 2,4-D, Dicamba, or MCPP: These are common “three-way” mixes that effectively kill many broadleaf weeds.
- Sulfentrazone: Great for tough weeds like dollarweed.
For pre-emergents, common effective ingredients include Pendimethalin or Prodiamine. These create a barrier in the soil.
Inert Ingredients
These help the chemical stick to the weed or spread through the water. Good surfactants (spreaders) improve how well the product works.
Factors That Improve or Reduce Quality
Not all weed killers perform equally under the Texas sun. Quality depends on formulation and timing.
What Improves Quality:
- Rainfastness: A product that dries quickly (becomes “rainfast”) works better if a sudden summer shower pops up. Look for labels promising fast absorption.
- Concentrate vs. Ready-to-Use: Concentrates often offer better value and allow you to mix the exact strength needed for your infestation level.
- Slow Release: Some pre-emergents release the chemical slowly, offering longer protection against new sprouts.
What Reduces Quality:
- High Heat Application: Applying powerful chemicals when it is 95°F outside often burns your desirable St. Augustine or Bermuda grass. This reduces lawn quality immediately.
- Poor Coverage: If you use a cheap sprayer or do not mix the product correctly, you will miss spots. Weeds will grow right back.
User Experience and Use Cases
How easy the product is to use matters greatly. Consider your lawn size and your comfort level.
Ease of Use
Ready-to-spray bottles are simple for small patches. However, homeowners with large yards prefer hose-end sprayers or granular products that spread easily with a fertilizer spreader. Read reviews to see if the sprayer nozzle clogs easily.
Best Use Cases for North Texas
- Springtime Blanket Attack: Use a granular pre-emergent early in the spring (before soil temps hit 55°F) to stop crabgrass.
- Mid-Summer Spot Treatment: Use a liquid post-emergent, applied early in the morning when the air is cooler, to kill existing weeds without stressing the turf.
- Fall Weed Prevention: Apply a second round of pre-emergent in the fall to control winter annuals like chickweed.
10 Frequently Asked Questions (FAQ) About North Texas Weed Killers
Q: What is the best time to apply weed killer in North Texas?
A: The best time for pre-emergents is late February or early March. For post-emergents, apply when weeds are actively growing but before the hottest part of the summer, usually April or May.
Q: Can I use a weed killer made for St. Augustine grass on Bermuda grass?
A: No, you must check the label carefully. Some chemicals safely treat one but damage the other. Always confirm the product is safe for your specific turf type.
Q: How long do I have to wait before mowing after spraying?
A: Most products require you to wait 24 to 48 hours after application before mowing. This allows the chemical time to soak into the weed.
Q: Will rain wash away my weed killer?
A: If the product is not “rainfast,” heavy rain soon after application will wash the chemical off the leaves or out of the soil, reducing its effectiveness.
Q: Are organic weed killers effective in this heat?
A: Organic options, often using oils like vinegar or clove, work by burning the top of the weed. They work best on very young weeds and are less effective on deep-rooted Texas invaders in high heat.
Q: Why are there still weeds after I used a post-emergent?
A: This happens for a few reasons. You might have used too little product, the temperature was too high, or the weed was too mature. Tough weeds might need a second application in two weeks.
Q: Should I water my lawn before or after spraying?
A: For post-emergents, the soil should be slightly moist, but the weed leaves should be dry. Do not water for at least 24 hours after spraying so the product can work.
Q: How do I prevent dollarweed, a common North Texas problem?
A: Dollarweed is tough. Use a product containing Sulfentrazone as a post-emergent, and maintain a thick lawn with proper watering to crowd it out.
Q: Can I put down grass seed right after using a weed killer?
A: If you use a pre-emergent, you cannot seed because the chemical stops all seeds from growing. Wait the time specified on the bag, usually 8 to 12 weeks, before seeding.
Q: What is the difference between a selective and a non-selective killer?
A: Selective kills only certain types of plants (like broadleaf weeds). Non-selective, like glyphosate, kills everything it touches, including your lawn grass.