Is your lawn looking a little sad and patchy as summer approaches? You’re not alone! Many homeowners battle the same unwelcome guest: crabgrass. This stubborn weed loves to invade healthy lawns, stealing nutrients and making your grass look messy and thin. It’s a frustrating problem that can ruin your yard’s curb appeal.
Choosing the right crabgrass preventer can feel like navigating a maze. There are so many products on the shelves, each promising to be the best. How do you know which one will actually work for your lawn without harming your grass or the environment? It’s easy to feel overwhelmed and unsure of where to begin.
But don’t worry! This post is here to help you cut through the confusion. We’ll break down what crabgrass preventers do and guide you through the important factors to consider. By the end of this article, you’ll feel confident in picking the best solution to keep your lawn green and crabgrass-free all season long. Let’s get your lawn back in shape!
Our Top 5 Crabgrass Preventer Recommendations at a Glance
Top 5 Crabgrass Preventer Detailed Reviews
1. Scotts Halts Crabgrass & Grassy Weed Preventer
Rating: 8.9/10
Tired of pesky crabgrass and other grassy weeds taking over your lawn? Scotts Halts Crabgrass & Grassy Weed Preventer is your solution for a beautiful, weed-free yard. This pre-emergent weed killer stops weeds before they even start to grow. It works by preventing the germination of many common lawn weeds, so you can relax and enjoy your green space.
What We Like:
- Effectively prevents the germination of crabgrass, foxtail, spurge, barnyardgrass, and more.
- Also targets henbit, chickweed, and Poa annua in the fall.
- Works well in both spring and fall applications, even with rain or snow afterward.
- Safe for use on all common grass types (except Dichondra or Bentgrass).
- One 20.12 lb bag covers a large area of 10,000 sq. ft.
What Could Be Improved:
- Not effective against existing weeds; it’s a preventer, not a killer of established plants.
- Moss control is not available in California.
Scotts Halts provides a strong defense against many common lawn weeds. For a consistently healthy and attractive lawn, this product is a valuable tool.
2. Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food
Rating: 8.6/10
Tired of seeing crabgrass pop up in your yard every spring? Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food is here to help. This product tackles crabgrass before it even starts growing. It also feeds your lawn, giving it a nice green boost after a long winter. You can prevent many common weeds like barnyard grass, foxtail, Poa annua, chickweed, and oxalis too.
What We Like:
- Stops crabgrass before it appears.
- Feeds your lawn for a quick green color.
- Prevents other listed weeds.
- Works even if it rains or snows after you apply it.
- Covers a large area – 15,000 sq. ft.
What Could Be Improved:
- Cannot be used on Dichondra or Bentgrass lawns.
- Needs to be applied in early spring before temperatures are consistently in the 80s and when the lawn is dry.
Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food offers a simple way to get a healthier, weed-free lawn. It’s a good choice for most homeowners looking to keep their grass looking its best.
3. Scotts Halts Crabgrass & Grassy Weed Preventer
Rating: 8.6/10
Keep your lawn looking its best with Scotts Halts Crabgrass & Grassy Weed Preventer. This powerful pre-emergent weed killer stops weeds before they even start to grow. It’s designed to prevent common lawn invaders like crabgrass, foxtail, and spurge in the spring, and then tackle fall weeds like henbit and chickweed. You can enjoy a weed-free lawn all season long.
What We Like:
- Prevents many common lawn weeds from germinating, so you see fewer weeds in your yard.
- Works in both early spring and fall to stop weeds at different times of the year.
- Works well on all grass types, except for Dichondra or Bentgrass.
- Rain, snow, or cold weather after applying does not hurt its effectiveness.
- One bag covers a large area of 5,000 sq. ft., making it a good value for bigger lawns.
What Could Be Improved:
- Does not control existing weeds; it only prevents new ones from growing.
- The product cannot be used in California for moss control.
- It’s important to apply to a dry lawn for best results.
Scotts Halts Crabgrass & Grassy Weed Preventer is a simple way to get ahead of lawn weeds. Invest in this product to help maintain a beautiful and healthy lawn with less effort.
4. Scotts WeedEx Prevent with Halts
Rating: 8.6/10
Tired of seeing crabgrass take over your lawn? Scotts WeedEx Prevent with Halts is here to help. This powerful pre-emergent weed killer stops grassy weeds like crabgrass before they even sprout. It’s designed to keep your lawn looking neat and tidy all season long. You can use it in early spring for summer crabgrass prevention or in the fall to stop winter weeds from popping up.
What We Like:
- It stops crabgrass before it starts, giving you a beautiful lawn all season.
- You can apply it in early spring or fall for year-round weed control.
- One bag covers a large area, 5,000 square feet, so you don’t need to buy many.
- It also prevents other unwanted winter weeds like henbit and chickweed.
What Could Be Improved:
- It cannot be used on Dichondra or Bentgrass lawns.
- You need to apply it at the right time for it to work best.
Scotts WeedEx Prevent with Halts offers effective, season-long control of crabgrass and other grassy weeds. For a healthier, weed-free lawn, this product is a solid choice.
5. Preen Lawn Crabgrass Control – 15 lb. – Covers 5
Rating: 8.9/10
Tired of seeing crabgrass ruin your beautiful lawn? The Preen Lawn Crabgrass Control – 15 lb. bag is here to help! This product is designed to tackle crabgrass before it even starts. It’s a powerful tool for any homeowner who wants a lush, green yard without the unwanted invaders. With enough product to cover up to 5,000 square feet, it’s a great solution for most average-sized lawns. You can trust Preen to keep your grass looking its best all season long.
What We Like:
- Effectively prevents crabgrass: It stops crabgrass seeds from germinating, so you won’t see it pop up in your lawn.
- Large coverage area: The 15 lb. bag covers a generous 5,000 sq. ft., making it ideal for most yards.
- Easy to apply: Getting rid of crabgrass is simple with this product. You just spread it on your lawn.
- Long-lasting protection: It provides season-long defense against crabgrass.
What Could Be Improved:
- Timing is crucial: You need to apply it at the right time of year for it to work best.
- Doesn’t kill existing crabgrass: This product is for prevention, not for killing crabgrass that has already grown.
This Preen Lawn Crabgrass Control is a smart choice for maintaining a healthy, crabgrass-free lawn. Invest in it to enjoy a greener, more enjoyable outdoor space.
Conquer Crabgrass: Your Essential Buying Guide
Tired of those pesky crabgrass invaders taking over your lawn? This guide will help you pick the right crabgrass preventer so you can enjoy a lush, green yard.
Why You Need Crabgrass Preventer
Crabgrass is a tough, annual weed. It sprouts in warm weather and chokes out your healthy grass. Crabgrass preventer stops its seeds from germinating. This keeps your lawn looking its best all summer long.
Key Features to Look For
When choosing a crabgrass preventer, several things matter.
1. Active Ingredients
These are the chemicals that do the work. Look for ingredients like:
- Dithiopyr: This is a popular choice. It stops crabgrass seeds from sprouting. It also offers some pre-emergent weed control for other weeds.
- Prodiamine: Another strong pre-emergent. It works for a long time.
- Pendimethalin: This is a common and effective ingredient. It prevents many types of weed seeds from growing.
2. Longevity of Protection
Some preventers last longer than others. A good product should protect your lawn for at least 4-6 weeks. This ensures it tackles crabgrass throughout its main growing season.
3. Lawn Safety
You want to kill crabgrass, not your grass! Check the label. It will tell you if the product is safe for your type of grass (like fescue, bluegrass, or zoysia). Some products are not safe for newly seeded lawns.
4. Ease of Application
Crabgrass preventers come in different forms.
- Granular: These are small pellets. You spread them with a spreader. They are easy to use and cover large areas well.
- Liquid: You mix these with water and spray them. They can be good for spot treating or when you don’t have a spreader.
Important Materials and What They Mean
The “other ingredients” in a product can affect how it works.
- Surfactants: These help the active ingredient spread and stick to surfaces.
- Fillers: These are materials like sand or clay. They help distribute the active ingredient evenly.
The quality of these materials matters. High-quality fillers help ensure even application. This means better protection for your lawn.
Factors That Improve or Reduce Quality
Several things can make a crabgrass preventer better or worse.
- Formulation: A well-formulated product mixes evenly and applies smoothly. Poor formulations can clump or not spread well. This leads to uneven protection.
- Packaging: Easy-to-open and resealable bags or containers are a plus. They keep the product fresh and prevent spills.
- Brand Reputation: Trusted brands often have better quality control. They spend more on research and development.
- Storage: If a product has been stored improperly (too hot or too cold), its effectiveness can decrease.
User Experience and Use Cases
Most users find granular products easiest to apply. They just walk the spreader across their lawn. Liquid options require a sprayer and careful mixing.
When to use it: The most important time to apply crabgrass preventer is before crabgrass seeds sprout. This is usually in early spring. Watch for signs like the soil starting to warm up. A good rule of thumb is when the forsythia bushes bloom.
Important Note: You cannot use crabgrass preventer on a lawn you plan to seed in the spring. It will stop your grass seeds from growing too! Wait until fall to seed if you use a pre-emergent in spring.
Crabgrass Preventer: Your Top 10 FAQs
Q1: What is crabgrass preventer?
A: Crabgrass preventer is a product that stops crabgrass seeds from sprouting and growing in your lawn. It works before the weeds actually appear.
Q2: When should I apply crabgrass preventer?
A: You should apply it in early spring, before the crabgrass seeds germinate. Watch for the soil to warm up, or when forsythia flowers bloom.
Q3: Can I use crabgrass preventer on a new lawn?
A: No, you generally cannot use crabgrass preventer on a lawn you are planning to seed in the spring. It will prevent your grass seeds from growing. Wait until fall to seed if you use a spring application.
Q4: What are the best active ingredients to look for?
A: Popular and effective ingredients include Dithiopyr, Prodiamine, and Pendimethalin. They all stop weed seeds from germinating.
Q5: How long does crabgrass preventer last?
A: Most good products offer protection for about 4 to 6 weeks. Some might last a bit longer.
Q6: What is the difference between granular and liquid crabgrass preventer?
A: Granular preventer comes in small pellets and is spread with a spreader. Liquid preventer is mixed with water and sprayed. Granular is often easier for most homeowners to use.
Q7: Is crabgrass preventer safe for my pets and children?
A: Once the product has dried and settled into the soil, it is generally considered safe. Always follow the label instructions carefully and keep pets and children off the lawn until it’s dry.
Q8: How do I know if I have crabgrass?
A: Crabgrass has a different look than most lawn grasses. It grows low to the ground and has a clumpy, spreading habit. It often appears in bare or thin spots in the lawn.
Q9: What happens if I miss the spring application window?
A: If you miss the window, you can try applying a post-emergent crabgrass killer. However, these work best on young crabgrass and can be harder to find and use effectively. Prevention is always better.
Q10: Can I apply fertilizer and crabgrass preventer at the same time?
A: Yes, many products combine both fertilizer and crabgrass preventer. This saves you a step. Just be sure to follow the application rates on the label.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.

Hi, I’m Tom Scalisi, and welcome to The Saw Blog! I started this blog to share my hands-on experience and insights about woodworking tools—especially saws and saw blades. Over the years, I’ve had the chance to work with a wide range of tools, and I’m here to help both professionals and hobbyists make informed decisions when it comes to selecting and using their equipment. Whether you’re looking for in-depth reviews, tips, or just advice on how to get the best performance out of your tools, you’ll find it here. I’m excited to be part of your woodworking journey!





