Crabgrass turns a healthy lawn into an eyesore before you even notice it sprouting. The window to stop it is narrow, and once those wiry clumps take hold, pulling them manually is a losing battle. A combined approach—preventing the weed while feeding the lawn simultaneously—saves time and delivers better results than tackling each task separately.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. I specialize in analyzing turfgrass chemistry data and comparing granular formulations to find the most effective crabgrass prevention strategies for the average homeowner.
After evaluating coverage capacities and active ingredient concentrations across several top brands, I’ve broken down the strengths of each option. Whether you’re maintaining a small front yard or a sprawling property, this guide to the best crabgrass preventer and fertilizer will help you choose the right product for your grass type and growing conditions.
How To Choose The Best Crabgrass Preventer And Fertilizer
Choosing the wrong combination product can leave your lawn underfed while crabgrass slips through the cracks. A quality pre-emergent and fertilizer blend hinges on three main factors: the active ingredient, the nitrogen release profile, and the coverage density relative to your lawn size.
Active ingredient matters more than brand name
Dithiopyr and prodiamine are the two heavy hitters in granular pre-emergents. Dithiopyr offers a small window of post-emergent activity, meaning it can kill young crabgrass that has already germinated. Prodiamine, used in products like The Andersons Barricade, lasts longer in the soil and is better for early spring application before soil temperatures hit 55°F. Skip products with weaker herbicides like benefin unless you pair them with a second application.
Nitrogen content and release speed determine lawn quality
A high first number in the NPK ratio (like 20-0-3 or 26-0-4) means the product delivers significant nitrogen for greening. Slow-release nitrogen sources—often listed as polymer-coated or sulfur-coated urea—feed the grass for 8 to 12 weeks without causing a growth spike that requires extra mowing. Avoid fast-release nitrogen in early spring; it pushes top growth at the expense of root development.
Coverage area and bag weight affect application accuracy
Bag weights range from 15 pounds covering 5,000 square feet to 50 pounds covering 15,000 square feet. Buying a bag that’s too small forces you to spread it thinner than recommended, which weakens the weed barrier. If your lawn is 10,000 square feet, look for a 33-pound or 40-pound bag so the spreader setting stays within the calibrated range.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Preen Lawn Crabgrass Control | Standalone Pre-emergent | All-season prevention up to 4 weeks after emergence | 0.19% Dithiopyr | Amazon |
| GreenView Fairway Formula Fertilizer | Straight Fertilizer | Thickening and greening without phosphate runoff | 27-0-5, 63% slow-release N | Amazon |
| Yard Mastery Double Dark 16-0-0 | High-Iron Fertilizer | Deep greening without excessive leaf growth | 6% iron, Bio-Nite coating | Amazon |
| GreenView Crabgrass Control Plus Lawn Food | Combo Pre-emergent+Fertilizer | Season-long prevention with 8-week feeding | 26-0-4, GreenSmart N | Amazon |
| Jonathan Green Green-Up 20-0-3 | Pre+Post Combo | Killing crabgrass before and after germination | 20-0-3, 3-month feeding | Amazon |
| The Andersons 18-0-4 Barricade | Professional Pre-emergent | Early spring/fall barrier with DG Technology | 0.426% Prodiamine | Amazon |
| The Andersons Barricade 50 lb | Professional Pre-emergent | Large-area barrier with longer prodiamine duration | 0.48% Prodiamine, DG Pro | Amazon |
In‑Depth Reviews
1. Jonathan Green Green-Up Lawn Food with Crabgrass Preventer
This 50-pound bag delivers a 20-0-3 analysis with both pre-emergent and post-emergent activity, meaning it stops crabgrass that hasn’t sprouted and also kills young weeds that already germinated. The slow-release nitrogen feeds the lawn for up to three months, which reduces the need for a second spring application. Customers in Michigan and other cool-season zones report visible greening within days and near-complete crabgrass suppression through the season.
The product controls over a dozen grassy and broadleaf weeds including goosegrass, dallisgrass, chickweed, and oxalis. It applies cleanly with a rotary or drop spreader and does not stain walkways or shoes. One caveat: it cannot be used at the same time as seeding because the pre-emergent prevents grass seed from rooting.
Long-term users consistently note that following the recommended timing—applying before soil temperatures hit 55°F—is the critical factor. One reviewer saw their lawn go from worst on the street to best in the neighborhood after pairing this with proper seeding and fall fertilizer. The 20-0-3 ratio supports steady growth without the surge that triggers frequent mowing.
What works
- Controls crabgrass before and after germination
- 3-month feeding window reduces repeat applications
- Does not stain hands or hardscapes
What doesn’t
- Cannot be used when overseeding a lawn
- Some users report tip whitening on certain grass types
2. GreenView Crabgrass Control Plus Lawn Food
GreenView’s 40.5-pound combo uses a 26-0-4 mix boosted by GreenSmart Enhanced Efficiency Fertilizer, which releases nitrogen steadily for up to eight weeks. The high nitrogen content makes this ideal for lawns that need a rapid spring green-up while the built-in dithiopyr stops crabgrass all season. The 15,000-square-foot coverage suits medium to large properties in one pass.
The formulation also helps the lawn retain moisture and builds deeper root systems, which is valuable during summer heat stress. The zero-phosphate recipe protects nearby waterways and complies with many regional fertilizer restrictions. It works on warm-season and cool-season grasses, including St. Augustine and zoysia, when applied according to the label.
This product shines for homeowners who want a true two-in-one rather than buying separate bags. The eight-week feeding period means you can follow up with a straight nitrogen application in late summer if needed, but many lawns maintain color through mid-season without extra work.
What works
- High 26-0-4 ratio delivers strong early-season green
- Zero phosphate reduces environmental runoff risk
- Continuous feeding lasts up to 8 weeks
What doesn’t
- No post-emergent activity for already-sprouted crabgrass
- Bag is heavy at 40.5 pounds for hand spreading
3. The Andersons 18-0-4 Barricade Fertilizer
The Andersons brings professional-grade weed control to homeowners with this 40-pound bag featuring prodiamine at 0.426%. Prodiamine is a longer-lasting pre-emergent than dithiopyr, making this a strong choice for early spring application when soil temperatures hover around 50–55°F. The 18-0-4 fertilizer component provides steady feeding without pushing excessive top growth.
The patented DG Technology uses dispersible granules that dissolve rapidly when watered in, moving the prodiamine directly into the soil profile for maximum weed barrier formation. This means you get more particles per square inch compared to standard granules, which translates to more consistent coverage. Users report near-total crabgrass suppression and noticeably greener grass within three weeks of application.
It prevents over 30 grass and broadleaf weeds including poa annua, goosegrass, and henbit. A few customers note the price feels higher per square foot compared to other combos, but the extended control window often eliminates the need for a second spring application. It is designed for early spring and fall use only and will not kill existing weeds.
What works
- Long-lasting prodiamine barrier for season-long prevention
- DG Technology dissolves quickly for fast soil absorption
- Feeds without causing excessive leaf growth
What doesn’t
- No post-emergent activity for existing weeds
- Higher per-bag cost than some competitor combos
4. The Andersons Barricade 50 lb Bag
This 50-pound bag pushes the prodiamine concentration to 0.48% and covers 14,200 square feet, making it the strongest pre-emergent barrier in this lineup. The DG Pro formulation delivers even smaller particles than the standard DG, which means more coverage sites per square inch and better weed prevention on established lawns. It is explicitly designed for early spring and fall application and will not eliminate weeds already growing.
Professional turf managers trust this product for large properties because the higher prodiamine load extends the suppression window longer than most retail options. One customer reported no weeds reappearing in treated areas after two years, while another noted excellent crabgrass control but had to use a separate spray for clover. It works safely on all cool-season and warm-season turf types when applied at the correct rate.
The 50-pound size requires a sturdy spreader but allows you to treat a full acre-equivalent property with fewer reloads. It does not contain fertilizer, so you need to pair it with a separate feeding program. This bag appeals to experienced lawn enthusiasts who already have a standalone fertilizer strategy and want maximum weed prevention.
What works
- Highest prodiamine concentration for extended protection
- DG Pro particles improve coverage uniformity
- Large bag covers nearly 15,000 square feet
What doesn’t
- Contains no fertilizer, must apply separately
- Heavy bag is difficult to lift for some users
5. Preen Lawn Crabgrass Control 15 lb
Preen’s 15-pound bag uses dithiopyr as the sole active ingredient and covers 5,000 square feet. The standout feature is its ability to stop crabgrass that has already emerged—up to four weeks after germination. This gives you a small forgiveness window if you miss the optimal pre-emergent timing. It also prevents over 40 common lawn weeds, making it one of the broadest-spectrum options.
It works on a wide range of grass types including St. Augustine, bermudagrass, zoysia, and all the common cool-season varieties. Users report significant weed reduction by mid-season, though one reviewer noted incorrect watering after application reduced effectiveness. The product needs to be watered in within a few days to activate the barrier.
This is a pure preventer with no fertilizer, so you must feed your lawn separately. The 5,000-square-foot coverage is best for smaller lawns or spot-treating problem areas. For the price point, it offers excellent value for someone who already has a separate fertilizer plan and just needs reliable weed control.
What works
- Post-emergent activity kills crabgrass up to 4 weeks after sprouting
- Controls 40+ weed species in one application
- Suitable for nearly all grass types
What doesn’t
- Small coverage area limits use on larger lawns
- Does not contain any fertilizer
6. GreenView Fairway Formula Lawn Fertilizer 33 lb
GreenView Fairway Formula is a straight fertilizer with a 27-0-5 analysis and 63% slow-release nitrogen, providing continuous feeding for up to 12 weeks. The zero-phosphate formulation is designed for lawns already adequate in phosphorus and helps comply with local fertilizer bans near waterways. It thickens turf density and delivers steady greening without the surge growth that demands extra mowing.
The 33-pound bag covers 10,000 square feet, a middle ground that fits most suburban lots. It works on any grass type and can be applied anytime the grass is actively growing. Since this product contains no herbicide, it is safe to use while overseeding and does not interfere with new grass establishment.
This bag pairs well with a separate pre-emergent like Preen or The Andersons Barricade. If you already have a crabgrass prevention program in place, this fertilizer provides the nutrition side of the equation without overlapping active ingredients that could stress the lawn.
What works
- High 27-0-5 ratio with 63% slow-release nitrogen
- Zero phosphate for environmentally sensitive areas
- Safe to use during overseeding
What doesn’t
- No weed control active ingredients
- Requires separate pre-emergent application
7. Yard Mastery Double Dark 16-0-0 with 6% Iron
Yard Mastery Double Dark delivers a 16-0-0 analysis plus 6% iron, which gives the lawn a deep, dark green color without pushing excessive leaf growth. The Bio-Nite coating slows nitrogen release, making it a good mid-season or late-spring feeder when you want color but not a growth flush. The 18-pound bag covers 6,000 square feet, best suited for smaller lawns or supplemental feeding.
It works on all major grass types including Bermuda, St. Augustine, zoysia, and tall fescue. The high iron content is particularly effective at correcting yellowing caused by iron chlorosis in alkaline soils. Because it contains no herbicide, it is safe to apply while seeding or when used alongside a separate pre-emergent program.
This product is a targeted tool rather than an all-in-one solution. If your lawn already has a strong pre-emergent barrier down and you simply want a cosmetic color boost without stimulating weeds, this granular feeder fits the bill. It is less suitable as a primary spring fertilizer for large properties due to the limited coverage per bag.
What works
- 6% iron delivers visible dark green color quickly
- Bio-Nite coating prevents growth surges
- Safe for use during overseeding
What doesn’t
- No weed prevention active ingredients
- Small bag limits coverage to 6,000 sq ft
Hardware & Specs Guide
Dithiopyr vs Prodiamine
Dithiopyr (found in Preen and GreenView Crabgrass Control Plus) offers a short post-emergent window, killing crabgrass that germinates up to four weeks after application. Prodiamine (found in The Andersons Barricade products) has a longer soil residual but no post-emergent activity. Choose dithiopyr if you may apply after soil temperatures hit 55°F. Choose prodiamine for early spring barrier treatments when you can time application before germination.
Slow-Release Nitrogen Percentage
The percentage of slow-release nitrogen determines how long one feeding lasts. GreenView Fairway Formula features 63% slow-release nitrogen for up to 12 weeks of feeding. Jonathan Green Green-Up uses polymer-coated urea for three-month release. Lower slow-release percentages mean the lawn gets a quick green flush followed by a fast fade, requiring more frequent reapplications.
DG Technology in Granular Formulations
The Andersons uses Dispersible Granule (DG) technology, where particles dissolve rapidly when watered in rather than staying intact on the soil surface. This pushes the herbicide into the root zone faster and creates more coverage points per square inch. Standard granules require more water and time to break down, which can delay barrier formation if rainfall is inconsistent.
Coverage Density and Spreader Calibration
A 15-pound bag covering 5,000 square feet delivers roughly 3 pounds per 1,000 square feet. A 50-pound bag covering 15,000 square feet delivers about 3.3 pounds per 1,000 square feet. If you spread a low-coverage bag over a larger area than recommended, you dilute the herbicide concentration and weaken the weed barrier. Always check the label rate for your specific grass type and lawn size.
FAQ
Can I apply crabgrass preventer and fertilizer overseeding a lawn?
What is the correct soil temperature for applying crabgrass preventer?
How quickly should I water in a granular pre-emergent?
Can I use a high-nitrogen combination product on warm-season grass?
Will a pre-emergent kill existing crabgrass that is already visible?
Final Thoughts: The Verdict
For most gardeners, the best crabgrass preventer and fertilizer winner is the Jonathan Green Green-Up Lawn Food with Crabgrass Preventer because it combines both pre and post emergent activity with a three-month feeding window in a single 50-pound bag. If you want a professional-grade barrier with longer residual control, grab the The Andersons 18-0-4 Barricade Fertilizer. And for large properties needing maximum prodiamine protection without fertilizer, nothing beats the The Andersons Barricade 50 lb.