What Fertilizer Kills Stickers

The fertilizer that kills stickers is one containing nitrogen, specifically a pre-emergent weed control formula with high nitrogen like a 21-0-0 or a 32-0-0 blend.
 
These nitrogen-rich fertilizers don’t kill existing stickers outright, but they create the perfect conditions for your lawn to outcompete and smother them.
 
If you want to know exactly what fertilizer kills stickers in your yard, you also need to pair it with a pre-emergent herbicide that stops new sticker seeds from germinating.
 
In this post, we’ll break down the best fertilizer options for sticker control, how they work, and the exact steps to get rid of these painful lawn invaders.
 
Let’s dig into the best ways to tackle those pesky burs once and for all.
 

What Fertilizer Kills Stickers and How It Works

The most effective fertilizer that kills stickers works in two ways: it feeds your grass so it grows thick and healthy, and it works alongside a pre-emergent to prevent sticker seeds from sprouting.
 
Let’s look at why nitrogen is your best friend in this battle.
 

1. High-Nitrogen Fertilizers Strengthen Your Lawn

When you apply a high-nitrogen fertilizer, your grass grows faster and denser, leaving little room for sticker weeds to establish themselves.
 
The fertilizer that kills stickers best is one with a high first number in the N-P-K ratio, like 21-0-0 or 46-0-0 (urea).
 
This nitrogen boost encourages lush leaf growth, which shades the soil and blocks sunlight from reaching sticker seeds waiting to sprout.
 
Healthy, thick grass roots also crowd out the shallow roots of sticker weeds, making it nearly impossible for them to take hold.
 
Over time, consistent nitrogen applications will significantly reduce your sticker population.
 

2. Pre-Emergent Fertilizers Prevent New Stickers

A fertilizer that kills stickers must include a pre-emergent herbicide, often called a weed-and-feed product.
 
These fertilizers contain chemicals like prodiamine or dithiopyr that create a barrier in the top layer of soil.
 
When sticker seeds try to germinate, they hit this chemical barrier and die before they ever break the surface.
 
The best time to apply this type of fertilizer is in early spring when soil temperatures reach around 55 degrees Fahrenheit.
 
You’ll also want a second application in late summer to catch the second wave of sticker germination.
 

Why Regular Fertilizer Won’t Kill Existing Stickers

You might be wondering if any fertilizer kills stickers that are already growing and prickly in your yard, and the honest answer is no.
 
Standard fertilizers, even high-nitrogen ones, only feed your lawn and don’t have any herbicidal properties.
 
For stickers that are already visible and producing those painful burs, you’ll need a post-emergent herbicide.
 
Look for products containing 2,4-D, dicamba, or mecoprop, which are specifically designed to kill broadleaf weeds.
 
Once you kill the existing stickers, the nitrogen fertilizer can then help your grass fill in the bare spots they leave behind.
 
So the real strategy is to use a post-emergent spray first, then follow up with a nitrogen-rich fertilizer to prevent future growth.
 

When to Apply Fertilizer for Sticker Control

Timing is everything when it comes to using fertilizer that kills stickers before they become a problem.
 
Apply your pre-emergent fertilizer in early spring, just before the soil warms up to that 55-degree mark.
 
For most regions, this falls between late February and mid-April, depending on your local climate.
 
Then, do a second application in late summer or early fall to stop the second germination cycle.
 
If you’re dealing with existing stickers, spray them with a post-emergent herbicide in late spring when they’re actively growing and before they produce seeds.
 
After the weeds die, apply your high-nitrogen fertilizer to promote thick, competitive grass growth.
 
This combination approach is the most reliable way to eliminate stickers from your lawn.
 

Best Fertilizer Products to Kill Stickers

Several commercial products combine fertilizer with pre-emergent herbicides, and these are the easiest way to tackle stickers.
 
Here are the top choices that work well for most lawns.
 

1. Scotts Turf Builder Weed and Feed

This popular product contains 28-0-3 fertilizer plus a pre-emergent that targets sticker seeds.
 
It’s easy to apply with a spreader and covers up to 5,000 square feet per bag.
 
The nitrogen content is solid enough to green up your lawn while the herbicide prevents new stickers.
 
 

2. Pennington UltraGreen Weed and Feed

Pennington’s formula uses a 30-0-4 blend with a pre-emergent for broadleaf weed control.
 
It’s especially effective if you have Bermuda grass or centipede grass because it’s gentle on these warm-season varieties.
 
Apply it in early spring and again in fall for year-round protection.
 

3. Agrisel Expert Gardener Weed and Feed

This budget-friendly option provides a 28-0-4 fertilizer mix with pre-emergent properties.
 
It’s a great choice if you’re looking for an affordable way to kill stickers without breaking the bank.
 
Just make sure to water it in after application so the herbicide reaches the soil layer where seeds germinate.
 

How to Apply Fertilizer That Kills Stickers

To get the best results from any fertilizer that kills stickers, you need to apply it correctly.
 
First, mow your lawn to a normal height and rake up any debris so the fertilizer can reach the soil.
 
Then, use a broadcast spreader to distribute the product evenly across your yard.
 
Be careful not to double-apply in overlapping passes because too much nitrogen can burn your grass.
 
After spreading, water your lawn lightly to activate the fertilizer and wash the herbicide into the top inch of soil.
 
For liquid products, use a sprayer and apply on a calm day to avoid drift onto flower beds or gardens.
 
Always follow the label instructions for your specific grass type and local regulations.
 

So, What Fertilizer Kills Stickers?

The fertilizer that kills stickers is a high-nitrogen weed-and-feed product containing a pre-emergent herbicide.
 
Nitrogen-rich formulas like Scotts Turf Builder Weed and Feed or Pennington UltraGreen are your best bets.
 
But remember, this fertilizer only prevents new stickers from sprouting, so you’ll need a post-emergent spray for any existing ones.
 
Apply your pre-emergent fertilizer in early spring and late summer, and you’ll notice a huge difference by next season.
 
With consistent effort, you can finally walk barefoot on your lawn without fearing those painful burs.
 
Hope this guide helps you win the battle against stickers in your yard.