Can A Lawn Be Over Fertilized? (Landscaper Advice)

Fertilizing your lawn is essential for maintaining healthy grass growth, but can a lawn be overfertilized? Our article on Can a Lawn Be Overfertilized? shares a landscaper’s advice on how to avoid over-fertilizing your lawn and the negative effects it can have.

For more lawn care tips, check out our article on Can a Lawn Be Over-Limed? and Can a Lawn Be Over-Watered?. Our website provides a wealth of information on lawn care and maintenance, so dive in and explore.

What Happens When You Over Fertilize Your Grass
Over-fertilizing your lawn can cause damage, stunted growth, and yellowing or burnt grass.
Signs of over-fertilization include excessive growth, an increase in pests and weeds, and a thick thatch layer.
You can fix an over-fertilized lawn by flushing the soil, mowing damaged blades, and applying balanced fertilizer.
The right amount of fertilizer for your lawn depends on various factors, including grass type and weather conditions.
Prevent over-fertilization by testing your soil, following instructions, and avoiding fertilizing during extreme weather.

What Happens When A Lawn Is Over-Fertilized?

Over-fertilizing your lawn can lead to several problems, including more weeds and a weaker grass. If the fertilizer is applied too frequently or if you apply too much at any given time the grass may be weakened by having its nutrient needs met too often. 

This may cause yellowing or browning of the blades.

It’s important to note that over-fertilizing isn’t always bad for your lawn; it just means that you are giving it more nutrients than it needs at one time or during one growing season. 

However, if you want to avoid damaging your lawn in this way, there are some ways to make sure you don’t overdo it when applying fertilizer:

Over-fertilizing a lawn can not only result in stunted growth but can also cause the grass to burn. Check out our article on can you burn your lawn with fertilizer for more information on the dangers of using too much fertilizer.”

Is It Okay For Me To Fertilize My Lawn More Than Once A Year?

The most common time for fertilization is in the spring when new growth begins, but it can also be done in the fall before winter or during the summer as well. 

You’ll want to consult with your local garden center about what kind of fertilizer will work best for your lawn based on its type and condition. 

For example, if you have a lot of shade (or live near trees), extra nitrogen may help promote faster growth and green up those shady spots where grass used to grow vigorously before being shaded out by larger plants overhead. 

Similarly if you live in an area where there’s more rainfall than sunshine (like Seattle), more phosphorus would be beneficial because it increases root mass which helps keep moisture locked into soil rather than running off into storm drains like rainwater tends to do after heavy storms like hurricanes rolling through Texas last year did not have much rain fall

When Is The Best Time Of Year To Fertilize My Lawn?

When it comes to fertilizer, timing is everything. The best time to fertilize your lawn is in the spring, when new growth begins. 

This can also be done in the fall if there has been an unusually warm summer that has prevented normal growth. 

You may also want to consider applying fertilizer after every couple of mowings in order to maintain even spreading throughout the season and prevent any buildup on top of clippings or turf grass blades themselves.

Aerating a lawn is an essential part of lawn maintenance but not everyone has access to expensive machinery. Learn how to aerate your lawn without a machine by reading our article on can you aerate your lawn without a machine and take the first step towards a healthier lawn today.

How Much Fertilizer Should I Use On My Lawn?

How much fertilizer to use depends on the size of your lawn. The larger the area, the more often you’ll need to fertilize it. 

If your grass grows faster than others in your neighborhood (or if it’s been a particularly hot summer), then you may want to fertilize more often too.

It’s best not to apply fertilizer too early or too late in the year early spring and late fall are ideal times for fertilization because they give grass plenty of time before winter comes around again. In between those two periods is summertime! 

This is when most people think their lawn needs water, but actually what they need is sun instead (which means keeping off their feet). 

Don’t apply any kind of fertilizer during this period unless otherwise instructed by an expert like ourselves here at Lawn Care Company!

What Kind Of Fertilizer Should I Buy For My Lawn?

As you can see, there are many different types of lawn fertilizers. Each type has its own pros and cons, which means that not every fertilizer is right for your situation. 

The best way to determine which type of fertilizer is right for you is by doing some research.

Look at the label on the bag of compost or topsoil (or whatever kind of organic material) that you’re buying at Home Depot or Lowes and find out what percentage it contains organic matter the higher this percentage is, the better.

Before purchasing any kind of fertilizer, make sure that it’s labeled as “organic.” If it isn’t sourced directly from nature (i.e., not made in a lab), then it’s probably not an organic product!

Over-fertilizing a lawn not only affects the growth of the grass but also creates a suitable environment for weed growth. Discover how lawn fertilization is related to weed growth by checking out our article on can lawn kill weeds and learn how to prevent weed growth while fertilizing your lawn

Can I Use Organic Fertilizer On My Lawn?

You can use organic fertilizer on your lawn, but not for the reasons you think. Organic fertilizers are good for the environment because they don’t leach into groundwater or pollute streams or rivers. 

However, they aren’t as effective as synthetic fertilizers when it comes to providing nutrients to grass. If you do choose to use an organic fertilizer on your lawn, make sure that it contains only natural ingredients and not any chemicals or pesticides.

Does It Matter What Type Of Grass I Have On My Lawn? And If So, Why?

Grass is so diverse that the amount of fertilizer needed to grow a healthy lawn will vary significantly depending on the type of grass. 

In other words, some types require more nutrients than others and some varieties are more sensitive to over-fertilization than others. For example:

  • Tall Fescue lawns do not like as much nitrogen as Kentucky Bluegrass does.
  • Bentgrass requires a lot less nitrogen than Tall Fescue or Bermuda Grass because it tends to be more resistant to diseases caused by excess nitrogen in the soil (nitrogen burn).
  • Centipede grass has very shallow roots which means extra care must be taken when applying fertilizer and new seedlings should not be planted near an existing stand until after two years when root systems become established (or else they might starve).

Can I Get Rid Of Crabgrass On My Lawn By Over-Fertilizing It?

If you have crabgrass, over-fertilizing can cause your grass to die. This means that the fertilizer has been spread unevenly, so one part of the lawn has too much and another part doesn’t enough. 

The result? Dead spots in places where there was once lush green grass.

The same goes for weeds! If your lawn is over-fertilized with too much nitrogen, it’ll grow out of control and sprout up all over your yard just like crabgrass does when watered too much.

If you’re worried about killing off a healthy patch of grass by putting too much fertilizer on it, don’t worry it’s not going to kill any grass (unless it’s diseased). 

But if you want to keep everything looking nice and green throughout spring until fall comes around again next year (and beyond), then make sure that every application is done correctly so neither weeds nor crabgrass can take over

An over-fertilized lawn can result in damage and dead spots, making lawn recovery a challenging process. However, with the right steps, it’s possible to recover a damaged lawn. Check out our article on can lawn recover from brown patch to learn more about the process of lawn recovery and how to restore your lawn to its former glory.

How Long Do I Need To Wait Before Mowing After Applying Fertilizer To My Lawn?

If you want to get the best results from your fertilizer, there are a few things you should do before mowing your lawn once it has been treated.

First, wait until the grass is dry so as not to cause any burns or damage to the blades of grass. This can take anywhere from one day up to five days depending on how much fertilizer was applied and what type of fertilizer was used.

Second, wait until the fertilizer has been absorbed by the soil and into the roots of your lawn before mowing again. 

The absorption process for different products varies but can take anywhere from one hour up to 24 hours depending on several factors including weather conditions (temperature/humidity), location (elevation), amount applied and type of product used. 

Some fertilizers take longer than others because they contain slower-release ingredients such as organic matter or microbials which need time for their beneficial effects on plants before being broken down by microbes in soil during decomposition stages between application dates

How Can I Tell If My Lawn Was Over-Fertilized?

Is it possible to over-fertilize your grass too much? Yes, it’s possible. If you’re applying fertilizer to your lawn for the first time and want to make sure you’re doing everything right, read the package instructions carefully before buying any products. 

Different brands recommend different amounts of fertilizer for different types of soil and grass types. Follow these instructions closely in order to achieve the best results possible!

Is It Possible To Over-Fertilize Your Grass Too Much?

The answer to this question depends on your grass. If you’re worried about over-fertilizing, try using a soil test kit before adding any fertilizer to your lawn. 

The results of this test will help determine whether or not your grass needs more nutrients and what type of fertilizer would be best suited for it.

If you decide that fertilizing is necessary and want to choose at least one kind of fertilizer, the following guidelines may help:

What Should I Do If My Grass Is Over-Fertilized?

Once you’ve determined that your lawn has been over-fertilized, it’s time to take action. The best approach is to remove any excess fertilizer from the soil. 

To do this, water your lawn at least one inch per week until autumn so that the roots can absorb as much water as possible. 

Next, apply a fertilizer labeled for use on stressed plants and grasses with high levels of phosphorus in the fall. 

Finally, be sure to test regularly after fertilizing your lawn; if phosphorus levels are still too high by springtime you may need re-apply more fertilizer or seek professional help from a licensed landscaper

Are There Any Home Remedies That Can Help Me Fix An Over-Fertilized Lawn?

You can try applying your own homemade fertilizer to see if it improves the quality of your grass. Some people say that compost tea is the best natural fertilizer for over-fertilized lawns, while others swear by worm castings or diatomaceous earth. 

If you’re feeling adventurous, you could also try using alfalfa pellets as a way to bring nitrogen back into your soil and help your grass grow healthy again!

Is It Possible To Kill Your Grass By Putting Too Much Fertilizer On It?

You may be wondering if it’s possible to kill your lawn by putting too much fertilizer on it. Well, yes and no. While it’s true that over-fertilizing can cause some damage to your grass, there are also ways to fix this problem if you catch it early enough.

You see, when you apply too much fertilizer at one time or too frequently throughout the year, the soil may become very acidic due to an excess of nitrogen and phosphorus in the soil. 

This will eventually cause yellowing or browning of the grass blades as well as excessive growth where none was needed!

While proper watering is essential for a healthy lawn, over-watering can result in damage and disease. Learn more about the negative effects of over-watering by checking out our article on can a lawn get too much water and discover how to find the right balance for a healthier lawn.


Everything in moderation is a good rule of thumb when it comes to fertilizing your lawn, but it can also be helpful to remember that there are some other things you can do as well. 

Over-fertilizing your lawn can lead to some bad problems, but if you’re careful about how much fertilizer you use and when you apply it, the worst thing that’ll happen is that your grass will grow too fast and start looking like an overgrown bush instead of looking like the beautiful green carpet we all want our yards to look like!

Further Reading

How Much Fertilizer Should I Use on My Lawn?: This article provides a comprehensive guide on how to determine the right amount of fertilizer to use on your lawn for optimal growth and health.

How to Fix an Overfertilized Lawn: If you’ve over-fertilized your lawn, this article provides step-by-step instructions on how to fix the damage and restore your lawn to a healthy state.

How to Know if Your Lawn is Over-Fertilized & How to Fix It: This article provides tips on how to identify if your lawn has been over-fertilized, and offers solutions on how to fix it.


What happens if you over-fertilize your lawn?

Over-fertilizing your lawn can result in damage to the grass, including stunted growth, yellowing, and even death in severe cases. It can also create a favorable environment for weed growth and pests.

How do you know if your lawn has been over-fertilized?

Signs of over-fertilization include a thick thatch layer, yellowing or burnt grass, excessive growth, and an increase in pests and weeds.

Can you fix an over-fertilized lawn?

Yes, you can fix an over-fertilized lawn by flushing the soil with water to remove excess nutrients, mowing the grass to remove the damaged blades, and applying a balanced fertilizer to help restore the lawn’s health.

How much fertilizer should you use on your lawn?

The amount of fertilizer to use on your lawn depends on various factors, including the type of grass, soil type, and weather conditions. It’s recommended to follow the manufacturer’s instructions and to avoid over-fertilizing.

Can you prevent over-fertilization in the first place?

Yes, you can prevent over-fertilization by testing your soil to determine its nutrient needs, following the manufacturer’s instructions for application, and avoiding applying fertilizer during drought or extreme weather conditions.