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10 Best Lawn Pre Emergents 2025 in the United States

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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control - Covers up to 12,880 sq ft (40 lb)

Rating
10.0
Chosen by1,418
Type of Weeds Controlled
Application Timing
Formulation

Most important from
4992 reviews

Type of Weeds Controlled
This pre-emergent truly works wonders, effectively eliminating weeds and unwanted seedlings.
Application Timing
If you want a weed-free, pristine lawn, apply Barricade properly and you will have zero new weeds.
Formulation
Applying it is a breeze, and a single 40 lb bag covers a large area, making it both cost-effective and convenient.
Safety for Desired Plants
The transformation has been remarkable—my turf grass is filling in beautifully, and my yard is starting to resemble a pristine golf course again.

The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control is designed specifically for preventing weeds rather than eliminating existing ones. It is effective against a variety of grassy and broadleaf weeds, including crabgrass, poa annua, goosegrass, and henbit, making it versatile for maintaining a clean lawn. The product contains 0.48% prodiamine, a powerful herbicide, and is meant to be applied in early spring and fall, giving you a seasonal approach to weed prevention. Each 40-pound bag covers up to 12,880 square feet, offering extensive coverage for larger lawns or multiple applications.

The DG Pro formulation enhances the product's performance by providing more particles per square inch, ensuring better coverage and effectiveness. Additionally, being made in the USA adds a level of trust and quality assurance to the product. However, it is important to note that this product won't help with existing weeds, so you might need a separate solution for those. Furthermore, care should be taken to apply it correctly to avoid affecting desired plants.

The granular form makes it easy to spread, but handling a 40-pound bag might be cumbersome for some users. This pre-emergent is a robust and effective solution for those looking to prevent a wide range of weeds in their lawn.

Rating
10.0
Chosen by1,418
Type of Weeds Controlled
Application Timing
Formulation

Most important from
4992 reviews

Type of Weeds Controlled
This pre-emergent truly works wonders, effectively eliminating weeds and unwanted seedlings.
Application Timing
If you want a weed-free, pristine lawn, apply Barricade properly and you will have zero new weeds.
Formulation
Applying it is a breeze, and a single 40 lb bag covers a large area, making it both cost-effective and convenient.
Safety for Desired Plants
The transformation has been remarkable—my turf grass is filling in beautifully, and my yard is starting to resemble a pristine golf course again.
#2

Scotts Turf Builder Triple Action1 - Combination Weed Control, Weed Preventer, and Fertilizer, 33.94 lbs., 12,000 sq. ft.

Rating
8.5
Type of Weeds Controlled
Duration of Effectiveness

Most important from
2723 reviews

Type of Weeds Controlled
Effectively suppresses common broadleaf weeds like dandelions and clover, helping lawns look well-maintained and lush.
Duration of Effectiveness
Prevents new crabgrass growth for up to four months, making it a reliable preventive solution during spring and beyond.

Scotts Turf Builder Triple Action is a convenient all-in-one lawn treatment combining weed killing, crabgrass prevention, and lawn feeding in a granular form. It targets common broadleaf weeds such as dandelion, clover, and chickweed while preventing crabgrass for up to 4 months, making it a good choice for maintaining a healthy, green lawn during spring and beyond. The product is designed to be safe for a variety of grass types like Kentucky Bluegrass and Bermudagrass, which means it won't harm your lawn when used as directed. Application is straightforward: apply on a wet lawn in early spring and water it in after 24 hours, covering up to 12,000 square feet per bag.

It will not eliminate existing crabgrass, only prevent new growth, so it serves primarily as a preventive tool rather than a cure for established grassy weeds. Since it combines weed control and fertilizer, it suits homeowners looking for a simple, multi-purpose solution rather than a highly specialized product. Users should ensure their lawn type matches the recommended grasses to avoid any safety issues.

Scotts Turf Builder Triple Action is a solid choice for those wanting to control weeds and feed their lawn with one product, but those dealing with existing crabgrass or non-listed weeds might need additional treatments.

Rating
8.5
Type of Weeds Controlled
Duration of Effectiveness

Most important from
2723 reviews

Type of Weeds Controlled
Effectively suppresses common broadleaf weeds like dandelions and clover, helping lawns look well-maintained and lush.
Duration of Effectiveness
Prevents new crabgrass growth for up to four months, making it a reliable preventive solution during spring and beyond.
#3

Scotts Halts Crabgrass & Grassy Weed Preventer, Pre-Emergent Weed Killer for Lawns, 10,000 sq. ft., 20.12 lbs.

Rating
8.2
Type of Weeds Controlled
Application Timing
Formulation

Most important from
8900 reviews

Type of Weeds Controlled
Effectively keeps crabgrass at bay when applied correctly.
Application Timing
Requires precise timing and application for best results; applying two weeks before soil temperatures warm is crucial.
Formulation
Concentrated Halts formula outperforms mixed products with fertilizer.
Duration of Effectiveness
The product remains effective throughout most of the growing season, though a second application may be needed in warmer climates.
Safety for Desired Plants
Safer and more effective than post-emergence weed killers, with no adverse health effects noted.

Scotts Halts Crabgrass & Grassy Weed Preventer is designed to help you maintain a weed-free lawn by preventing the germination of various lawn weeds. This product excels in controlling a wide range of weeds such as crabgrass, foxtail, spurge, barnyardgrass, and others listed for use in early spring and fall. It is especially effective against moss (except in California), Poa annua, henbit, corn speedwell, and chickweed during the fall season.

Convenience is a key strength, as you can apply it to a dry lawn in either early spring or fall, and it remains effective despite rain, snow, or freezing weather following the application. This granule-based product covers up to 10,000 square feet, making it suitable for larger lawns. However, it is important to note that it is not safe for use on Dichondra or Bentgrass lawns.

Weighing 20.12 pounds, it is a manageable size for most users. Given its broad coverage, ease of application, and long-lasting effectiveness, this weed preventer is a solid choice for those looking to maintain a pristine lawn.

Rating
8.2
Type of Weeds Controlled
Application Timing
Formulation

Most important from
8900 reviews

Type of Weeds Controlled
Effectively keeps crabgrass at bay when applied correctly.
Application Timing
Requires precise timing and application for best results; applying two weeks before soil temperatures warm is crucial.
Formulation
Concentrated Halts formula outperforms mixed products with fertilizer.
Duration of Effectiveness
The product remains effective throughout most of the growing season, though a second application may be needed in warmer climates.
Safety for Desired Plants
Safer and more effective than post-emergence weed killers, with no adverse health effects noted.

Buying Guide for the Best Lawn Pre Emergents

Choosing the right lawn pre-emergent is crucial for maintaining a healthy and weed-free lawn. Pre-emergents are herbicides that prevent weed seeds from germinating, thus stopping weeds before they even start to grow. To pick the best pre-emergent for your lawn, you need to consider several key specifications. Understanding these specifications will help you make an informed decision that suits your lawn's specific needs and conditions.
Type of Weeds ControlledThis spec indicates which types of weeds the pre-emergent is effective against. It's important because different pre-emergents target different weeds. Common categories include grassy weeds like crabgrass and broadleaf weeds like dandelions. If your lawn is prone to a specific type of weed, choose a pre-emergent that is formulated to control that particular weed. For a more comprehensive approach, you might opt for a product that targets a broad spectrum of weeds.
Application TimingApplication timing refers to when you should apply the pre-emergent to your lawn. This is crucial because applying it at the wrong time can render it ineffective. Pre-emergents are typically applied in early spring or fall, depending on the weed type. For example, to prevent summer annual weeds like crabgrass, apply in early spring. For winter annual weeds, apply in the fall. Knowing the growth cycle of the weeds in your area will help you determine the best time to apply the pre-emergent.
FormulationPre-emergents come in different formulations, such as granular or liquid. This spec is important because it affects how you apply the product and its ease of use. Granular formulations are often easier to apply with a spreader and are less likely to drift, making them ideal for larger areas. Liquid formulations can be more precise and are often used for spot treatments or smaller areas. Choose the formulation that best fits your lawn size and your application preferences.
Duration of EffectivenessThis spec indicates how long the pre-emergent will remain effective after application. It's important because it determines how often you need to reapply the product. Duration can range from a few weeks to several months. For long-lasting control, look for a pre-emergent with a longer duration of effectiveness. If you prefer to reapply more frequently to ensure continuous protection, a shorter duration might be suitable. Consider your maintenance routine and how often you are willing to reapply the product.
Safety for Desired PlantsThis spec tells you whether the pre-emergent is safe to use around the plants you want to keep, such as grass, flowers, or shrubs. It's crucial because some pre-emergents can harm desirable plants if not used correctly. Look for products that are labeled safe for your specific type of grass or plants. If you have a mixed garden, choose a pre-emergent that is safe for a variety of plants to avoid accidental damage.

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