Imagine stepping onto a lawn so green and lush it looks like a velvet carpet. But then you spot those pesky dandelions popping up, ruining the perfect picture. Don’t you wish you could feed your grass *and* fight those unwanted invaders all at once? It feels like a constant battle between healthy growth and stubborn weeds.
Choosing the right lawn fertilizer with weed killer can feel overwhelming. Do you pick the one that targets broadleaf weeds? What about the one that’s safe for your specific grass type? You want strong, healthy turf without accidentally harming your flowers or pets. It’s confusing trying to balance feeding your lawn with effective weed control.
This guide cuts through the confusion. We will break down exactly what you need to know about these powerful two-in-one products. You will learn how to choose the best formula for your yard’s needs, apply it correctly, and finally achieve that picture-perfect, weed-free green space you’ve always wanted. Let’s dive into creating your dream lawn!
Top Lawn Fertilizer With Weed Killer Recommendations
- Scotts Turf Builder Weed & Feed3 weed killer plus fertilizer kills existing listed weeds and feeds to thicken your lawn and crowd out future weeds
- Weed Control and Lawn Fertilizer: controls over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- Weed and Feed for Lawns: Apply this combination weed control and lawn food to a wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; do not apply more than 2X per year
- Use on Listed Grass Types: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass (temporary discoloration may occur on some grasses)
- Coverage: One 14.29 lb. bag of Scotts Turf Builder Weed & Feed3 covers 5,000 sq. ft.; use a Scotts spreader for even, uniform coverage
- Scotts Turf Builder Weed & Feed5 weed killer plus fertilizer kills existing listed weeds and feeds to thicken grass and crowd out future weeds
- Weed Control and Lawn Fertilizer: controls over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- Weed and Feed for Lawns: Apply this combination weed control and lawn food to a wet lawn when weeds are actively growing and daytime temperatures are consistently between 60°F and 90°F; do not apply more than 2X per year
- Use on Listed Grass Types: Apply this lawn care product to Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass (temporary discoloration may occur on some grasses)
- Coverage: One 11.32 lb. bag of Scotts Turf Builder Weed & Feed5 covers 4,000 sq. ft.; use a Scotts spreader for even, uniform coverage
- Scotts Turf Builder WinterGuard Fall Weed & Feed3 is a weed killer and lawn fertilizer that controls weeds and feeds grass in the fall for a better lawn next spring
- Fall weed and feed kills over 50 listed lawn weeds, including clover, dandelion, plantain, morningglory, chicory, eveningprimrose, and purslane
- Apply weed control plus grass fertilizer to a moist lawn when weeds are actively growing and temperatures are consistently between 60°F and 90°F
- This lawn care product is for use on Bahiagrass, Bermudagrass, Bluegrass, Centipedegrass, Fescue, Ryegrass, and Zoysiagrass
- One 11.43 lb. bag of Scotts Turf Builder WinterGuard Fall Weed & Feed3 covers 4,000 sq. ft.
- Scotts Liquid Turf Builder with Plus 2 Weed Control kills weeds and gives your lawn a quick boost of nitrogen to promote greening
- Liquid weed killer plus fertilizer controls dandelion, clover, ground ivy, henbit, chickweed, plantain, poison ivy, and other broadleaf weeds as listed
- Apply this ready-to-spray weed and feed when weeds are actively growing
- This lawn care product is for use on Bluegrass, Fescue, Ryegrass, Bahiagrass, Common Bermudagrass, Centipedegrass, and Zoysiagrass
- One 32 fl. oz. container of Scotts Liquid Turf Builder with Plus 2 Weed Control provides coverage of 6,000 sq. ft. for warm season lawns and 4,000 sq. ft. for cool season lawns
- Scotts Turf Builder Triple Action1 is a three-in-one formula that kills weeds, prevents crabgrass, and feeds grass to build thick, green lawns
- Controls existing listed lawn weeds, including dandelion, clover, dollarweed, ground ivy, chickweed, plantain, henbit, and english daisy
- Prevents crabgrass for 4 months (will not kill existing crabgrass); prevents other listed grassy weeds from invading your lawn
- For use on Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, Fine Fescue, and Zosyiagrass
- Apply to a wet lawn with a Scotts spreader, and then water in after 24 hours; apply in early spring when dandelions are actively growing; an 11.31 lb. bag treats 4,000 sq. ft.
- SOUTHERN LAWNS: Specially formulated for Southern lawns like Bermudagrass, St. Augustinegrass (including Floratam), and more, this grass fertilizer for lawn provides care and acts as a weed killer for lawns
- 6-MONTH PROTECTION: Delivers up to 6 months of weed prevention, stopping listed broadleaf and grassy weeds, including crabgrass
- WEED KILLER: Kills listed weeds like dandelion, dollarweed, and clover, serving as a reliable weed and feed for lawns to keep your lawn healthy and maintain its beauty
- LAWN FERTILIZER: This lawn fertilizer and weed control product feeds, greens, and strengthens your lawn, helping it remain lush throughout the season
- EASY APPLICATION: Use with a broadcast or drop spreader to apply this weed and feed lawn fertilizer, managing your lawn care routine with ease and maximum results
- SOUTHERN LAWNS: Specially formulated for Southern lawns like Bermudagrass, St. Augustinegrass (including Floratam), and more, this grass fertilizer provides care and acts as a weed killer for lawns
- 6-MONTH PROTECTION: Delivers up to 6 months of weed prevention, stopping listed broadleaf and grassy weeds, including crabgrass
- WEED KILLER: Kills listed weeds like dandelion, dollarweed, and clover, serving as a reliable weed and feed for lawns to keep your lawn healthy and maintain its beauty
- LAWN FERTILIZER: This lawn fertilizer and weed control product feeds, greens, and strengthens your lawn, helping it remain lush throughout the season
- EASY APPLICATION: Use with a broadcast or drop spreader to apply this weed and feed lawn fertilizer, managing your lawn care routine with ease and maximum results
- DUAL-ACTION FORMULA: Kills major broadleaf weeds while feeding your lawn.
- FEEDS LAWN: Fertilizes with 20 percent nitrogen formulation.
- KILLS WEEDS: Controls dandelion, chickweed, knotweed, plantain, clover, mallow, purslane and many broadleaf weeds as listed.
- QUICKFLIP SPRAYER: Just connect to your hose and spray – just grip, flip and go.
- COVERAGE: 32 ounces treats up to 7,500 square feet of lawn.
Your Guide to Lawn Fertilizer with Weed Killer: Get a Greener, Cleaner Yard
A beautiful lawn needs more than just mowing. It needs food (fertilizer) and protection from unwanted guests (weeds). Lawn fertilizer with weed killer combines these two jobs into one easy step. This guide helps you choose the best product for your yard.
Key Features to Look For
When shopping, look for these important features:
- **Weed Control Type:** Does it kill existing weeds (post-emergent) or prevent new ones from sprouting (pre-emergent)? Many good products offer both.
- **Fertilizer Ratio (N-P-K):** This three-number code shows the percentage of Nitrogen (N) for green growth, Phosphorus (P) for strong roots, and Potassium (K) for overall health. A common ratio for spring feeding is 24-0-10.
- **Application Method:** Most are granular (small pellets you spread) or liquid (you mix with water and spray). Granular is often easier for beginners.
- **Lawn Type Compatibility:** Check if the product is safe for your specific grass type (like Fescue, Bermuda, or Zoysia). Using the wrong one can hurt your lawn.
Important Materials Inside
The effectiveness of the product depends on what’s inside.
The fertilizer part provides nutrients. Nitrogen is the most important ingredient for that deep green color. The weed killer part uses chemicals to target weeds. Common weed killers include 2,4-D, Dicamba, or MCPP. These chemicals attack broadleaf weeds (like dandelions and clover) but usually leave grass unharmed.
Always check the label to see which specific weeds the product targets. If you have a specific weed problem, make sure the product lists it.
Factors That Improve or Reduce Quality
The quality of the final result depends on a few things:
- **Slow-Release vs. Quick-Release Nitrogen:** Slow-release nitrogen feeds your lawn steadily over weeks. This prevents sudden, weak growth spurts and reduces the chance of fertilizer burn. Quick-release works fast but needs more frequent applications. Slow-release usually means higher quality.
- **Weather Conditions:** Applying when rain is expected too soon can wash the fertilizer away before it works. Applying when it is too hot can cause the chemicals to damage your grass (burn). Always follow the temperature guidelines on the bag.
- **Proper Calibration:** Using too much product is a major quality reducer. It wastes money and often burns your grass. Use a spreader and set it to the correct setting listed on the package.
User Experience and Use Cases
These products are designed to save you time.
Ease of Use: Granular products require a broadcast or drop spreader. Liquid products require a pump or hose-end sprayer. Most users find granular easier to apply evenly. Read reviews to see how easily the product spreads without clogging your spreader.
When to Use It (Use Cases):
- **Early Spring:** Use a product with **pre-emergent** weed control. This stops crabgrass before it starts growing.
- **Late Spring/Early Summer:** Use a product with **post-emergent** control to eliminate dandelions that have already popped up.
- **Fall:** A good fall application helps the grass store energy for winter, leading to a healthier spring return.
Remember, safety first! Always wear gloves, long pants, and shoes when applying any lawn chemical.
10 Frequently Asked Questions (FAQ) About Lawn Fertilizer with Weed Killer
Q: How soon after applying will I see results?
A: You usually see the fertilizer color change (greening) in about 3 to 7 days. The weeds might take 1 to 3 weeks to fully die off, depending on the product and the weather.
Q: Can I use this product if I have pets?
A: Yes, but only after the lawn is completely dry and the required waiting time has passed. Most manufacturers suggest keeping pets and children off the treated area until the product has settled and dried, usually for 24 hours.
Q: Does this kill clover?
A: Most weed killers are designed for broadleaf weeds, which includes clover. However, always check the label specifically to confirm clover is listed as a target weed.
Q: What is the difference between pre-emergent and post-emergent?
A: Pre-emergent stops seeds from growing roots. Post-emergent kills plants that are already visible above the soil.
Q: Can I use this product in the heat of summer?
A: Generally, no. Applying fertilizer and weed killer when temperatures are above 85°F often stresses the grass and causes fertilizer burn. Stick to the temperature guidelines on the bag.
Q: How long does the fertilizer feed my lawn?
A: This depends on the formula. Products with more slow-release nitrogen can feed the lawn for 8 to 12 weeks. Quick-release formulas might only last 4 to 6 weeks.
Q: Should I water my lawn before or after applying?
A: Most products require the lawn to be dry for application. After applying, you usually need to water lightly to help the fertilizer move into the soil. Check the directions for specific watering instructions.
Q: What if I see yellow spots after applying?
A: Yellow spots often mean you applied the product too heavily in that area (over-application). This is often called fertilizer burn. Lightly water the area to try and dilute the chemicals.
Q: Can I use this on my vegetable garden?
A: Absolutely not. These products contain herbicides meant to kill weeds. Do not use them near edible plants or flower beds.
Q: How often should I apply this type of product each year?
A: Most lawns benefit from 3 to 4 applications per year—usually one in early spring, one in late spring, one in early fall, and sometimes one in late fall, depending on your climate and grass type.