Best Moss Killer for Lawns to Regrow Healthy Grass

Ian Mutuli
Updated on
Ian Mutuli

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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If your beautiful, glossy lawn is starting to show signs of moss infestations, your best solution is investing in the best moss killer for lawns. While there are many moss killers in the market, few are formulated to work only on lawns, so it is vital you get the correct one. So, what is the best moss killer for lawns?

The best lawn moss killer is Scotts Turf Builder With Moss Control For Lawns. This powerful chemical moss killer eliminates moss and nourishes your lawn with essential nutrients. Our second best choice is Lilly Miller Moss Killer For Lawn, an organic option that effectively kills moss while being gentle on the environment. Our third pick is the BioAdvanced Moss And Algae Killer, a versatile solution used on lawns, roofs, and other outdoor surfaces.

No matter which product you choose, our five best moss killers have been tested and proven effective at removing moss and restoring your lawn to its former glory. This article looks at the readily available moss control products for your lawn and the factors you should consider as you look to tame excessive moss growth.

Say goodbye to unsightly patches of moss and hello to a lush, healthy lawn.

What Is the Most Effective Moss Killer for Lawns?

Moss is sometimes quite decorative, and you can find products encouraging its growth. However, if it is not wanted on your lawn, taking action now rather than later is the only way to curb its spread.

One of the signs you can look for to understand your best lawn moss killer is the state of your grass. Usually, moss tends to eat up all the nutrients in the soil, thus leaving the grass to dry up. At this point, you must treat the soil and kill the moss.

Keep reading to discover why these products made the cut and how they can help you achieve a beautiful, moss-free lawn.

1. Scotts Turf Builder With Moss Control For Lawns

Scotts Turf Builder with Moss Control - 10,000 sq. ft.,...
  • Kills moss and thickens grass to fill in bare spots
  • Kills moss, not lawns—guaranteed
  • Improves lawn's ability to absorb water and nutrients versus an...
  • Apply during winter or spring when moss is actively growing
  • Feeds to help prevent future moss problems

If you're dealing with moss on your lawn, you know how quickly it can take over and rob your grass of much-needed nutrients. That's why I turned to the Scotts Turf Builder moss killer to help me tackle the problem.

I was impressed by how quickly this product worked - within a few days, all the moss on my lawn was dead and gone. And unlike some other moss killers I've tried in the past, the Scotts Turf Builder didn't harm my grass at all. Instead, it helped my lawn absorb water and nutrients more effectively, leading to healthier and greener grass.

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The product comes in granule form, which I found easy to apply using my Scotts spreader. I applied it to my lawn while it was moist and freshly mowed to ensure even coverage, even in hard-to-reach areas. And the best part? I can use this moss killer on any type of grass and any time of year - even during the peak moss-spreading seasons of winter and spring.

I would highly recommend the Scotts Turf Builder moss killer to anyone looking for an effective and safe way to remove moss on their lawn.


  • Easy to apply
  • Helps your lawn absorb more nutrients and water
  • Kills moss in a few days
  • Ideal for all types of grass
  • Available in two size options to cover 5000 sq. ft and 10 000 sq. ft
  • Prevents future moss growth


  • Not sold in some states

2. Lilly Miller Moss Killer For Lawn

Lilly Miller Moss Out for Lawns Ready to Spray 32oz,...
  • Kills lawn moss quickly
  • Works in Hours!
  • Liquid iron gives superior results

Looking for an effective moss killer for my lawn, I decided to try out Lilly Miller's moss control product. I was impressed by how easy it was to apply - attach the bottle to a hose and spray away! Unlike some other moss killers I've used, there was no need to wet the lawn beforehand.

One of the best features of this product is its fast-acting formula. Within hours, the moss started to discolor and die off. By the next day, most of the moss was gone entirely, making removing it much more manageable. Seeing such quick results was definitely a relief, as other moss killers I've tried have taken much longer to work.

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However, I did notice that the product can leave stains on surfaces around the lawn if you're not careful. So, I applied it cautiously and avoided getting it on anything I didn't want to be stained. The 32 oz bottle was enough to cover my 500 sq. ft moss-infested lawn, and I'm happy to report that the moss has not returned since I used this product.


  • Best for killing moss within hours
  • It will help the grass fill up the lawn and absorb nutrients better
  • Affordable
  • Easy to apply as it comes in liquid form
  • Comes in a bottle so you can attach it to a hose for fast applying


  • Will stain surfaces

3. BioAdvanced Moss And Algae Killer

BioAdvanced 704710B Moss and Algae Killer...
  • MOSS and ALGAE KILLER and CLEANER: Kills moss, algae, lichen,...
  • 2-in-1 KILLER and CLEANER: Use on lawns, patios, roofs,...
  • KILLS WITHIN HOURS: Moss will quickly turn yellow and then brown,...
  • NON-BLEACH FORMULA: BioAdvanced non-bleach formula will not stain...
  • COVERAGE AREA: Treats up to 500 square feet

If you're like me and have struggled with moss infestations on your lawn, you'll know how frustrating it can be to find a solution that works. That's why I decided to try out BioAdvanced Moss and Algae Killer, and I have to say, I'm impressed with the results.

The liquid formula comes in an easy-to-use bottle, and I could cover around 500 square feet of my lawn with just one application. What's great about this moss killer is its non-bleach formula, so I didn't have to worry about it staining any of my surfaces.

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I applied the moss killer during a relatively warm day with temperatures between 50°-90°F, and within hours, I noticed the moss starting to turn yellow and eventually turning brown. Although I had to physically remove the dead moss, I was pleased to see that the formula worked effectively and prevented regrowth.

I highly recommend BioAdvanced Moss and Algae Killer for anyone looking for a long-lasting solution to moss infestations. It's suitable for all grass types and will help restore your lawn to its best health.


  • The liquid formula is easy to apply
  • Kills moss and other infestations within a few hours
  • Affordable
  • Will not stain surfaces
  • It won't damage the lawn
  • Ideal for all grass types


  • You will need to clear the dead moss physically

4. Bonide MossMax Moss Killer

Bonide (BND728) - MossMax Moss Killer, Ready to Spray,...
  • MOSS KILLER - MossMax is effective in controlling mold, mildew,...
  • OUTDOOR USE - This product is designed for use on lawns,...
  • PROMOTES HEALTHY LAWNS - MossMax Moss Killer knocks out moss so...
  • YEAR ROUND APPLICATION - The product can be used any time moss is...
  • READY TO SPRAY - This product arrives in a container with an...

As a homeowner who takes pride in my lawn's appearance, I've tried several moss killers. One product that I've found to be particularly effective is Lilly Miller Moss Killer for Lawns.

What I love about this 32 oz liquid moss killer is that it not only targets moss but also other infestations like lichen and algae. I spray it on the affected areas, and it works to prevent algae stains and remove moss without damaging my lawn's health.

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After using this moss killer, I've noticed that my lawn grows back thicker and more vibrant, while the moss has not returned for an extended period. I also appreciate that it's an organic product, so I don't have to worry about exposing my family or pets to harsh chemicals.

If you're thinking of trying this moss killer, I recommend applying it during spring or fall when you notice moss actively growing on your lawn. I'm impressed with the effectiveness and ease of use of Lilly Miller Moss Killer for Lawns, and I will continue to use it to keep my lawn looking green and lush.


  • Effective moss killer that will also kill other types of infestations
  • Easy to apply
  • Ideal moss killer for all grass types
  • It will not affect the grass
  • It will not stain surfaces
  • Affordable


  • None

5. Lilly Miller Lawn Moss Killer Granules

Lilly Miller Moss Out Lawn Granules 20lb
  • Products quick results
  • Kills moss and promotes greener grass
  • Does not harm lawn
  • Contains 32.0-percent ferrous sulfate monohydrate and...
  • Covers up to 5000 square feet

As a homeowner who has struggled with moss on my lawn, I decided to try out the Lilly Miller Lawn Moss Killer in granule form, and I have to say, I'm impressed with the results.

Applying the granules was simple. I used a spreader to apply the product to my wet lawn, and it sat deep under the grass to attack the moss. I left it to do its work, and within a few hours, I noticed a significant reduction in moss growth.

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I appreciate that this product is designed only to attack moss, leaving my grass intact and healthier. With coverage for up to 5000 sq. ft, I could tackle multiple areas of my lawn without worrying about running out of product.

I also appreciate that it's affordable, and the application instructions are easy to follow. If you're struggling with moss on your lawn, I highly recommend trying the Lilly Miller Lawn Moss Killer.


  • Affordable lawn moss killer
  • Fast-acting
  • Leaves your lawn improved and looking healthy
  • Easy to spread on wet lawns
  • Ideal for all grass types


  • You will need protective eyeglasses when opening the bag

What Are The Causes Of Lawn Moss Growth?

When you notice signs of moss infestation, it is a signal of weakened grass. These are the main causes of lawn moss;

  1. Poor lawn care, including irregular mowing and little fertilizer addition, leaves the grass thin and weak.
  2. An excessive shade that leaves the ground moist most of the time
  3. Compacted soil that stores enough moisture for moss to thrive
  4. Unstable soil pH
  5. Poor soil drainage
  6. Low soil fertility
  7. Lawn thatch, made of dead grass, weeds, and roots, encourages a lot of moisture retention

Factors You Can Consider Before Buying The Best Moss Killer For Lawns

While moss can sometimes be good for the lawn, you will need to eradicate it if it becomes too much. However, as seen above, you will also need to address the root causes of its growth to prevent its regrowth after using a weed killer.

You could mow your lawn more often and eliminate excess lawn thatch. Also, if you notice you have compacted soil, you could look for ways to make it more breathable, thus less accommodating of moss in the future.

While you tackle the causes of moss growth, it will also be ideal to use the best moss killer to kill the moss growing on your lawn. Here are some vital factors that should influence your buying decision.

A) Type Of Lawn Moss Killer

There are two main types of moss killers for your lawn you can buy;

  1. Liquid/spray moss killers
  2. Granular moss killers

You can find liquid lawn moss killers that can also work for the roofs, walls, and other areas of your home with moss that needs eradicating. They are formulated without bleach and thus will not bleach or stain woofs, walls, or other surfaces you need to clear moss from. Unfortunately, granular moss killers will stain your surfaces; therefore only ideal for lawns.

A liquid lawn moss killer is a carefully formulated formula that is easy to apply and quickly eradicates moss. When buying, you will find it packaged in a spray bottle to attach to the hose for easy application.

If you decide to buy a liquid moss killer, you can also look for one with extra ingredients to boost the health of your grass. Often, these are vital nutrients such as iron to help treat the soil and strengthen the thinned grass for a fuller, green, and glossy lawn.

Granular moss killers are the most common options for lawns. They are packaged in bags and will require a spreader to spread all across the lawn.

Unlike liquid lawn moss killers, granular killers are packaged for larger yards, often with a potential coverage of 5000 square feet. However, you will need to wet the lawn or garden after spreading so the granules can be better absorbed to control the moss.

B) Size Of The Lawn

You will need to estimate how much moss killer will be sufficient to cover your whole lawn, yard, or garden. When buying, you will learn how much coverage you can expect from the packaging. Most moss control products offer coverage from 500 sq. ft to 10000 sq. ft.

However, this coverage will depend on how much moss you want to kill without affecting grass, plants, and surfaces around the lawn. If your lawn is too infested, you may need to use more products or consult a professional landscaper to help you restore the health of your lawn.

C) Ease Of Application

While it is easier to apply a moss killer during seasons like summer and autumn, you will also need to consider how much work you will have to do to kill moss quickly.

You can choose between liquid moss killers you can easily spray around your lawn or granular moss killers you can spread by hand or using a spreader if your lawn is large.

In addition, you can consider how the formula will kill moss quickly and if you will need to remove the moss from the soil. Some products will kill the moss, but you will also have to uproot it to make way for new grass growth physically.

Frequently Asked Questions (FAQs) About The Best Moss Killer For Lawns

1. What is the most effective moss killer for lawns?

The most effective moss killer is the Scotts Turf Builder With Moss Control For Lawns. This powerful chemical moss killer not only eliminates moss but also nourishes your lawn with essential nutrients. It's easy to apply and can cover a large area with each bag, making it a cost-effective solution for large lawns.

2. What is the best time to put moss killer on your lawn?

The best time to put moss killer on your lawn is typical during the fall or spring when moss is actively growing. It is best practice to apply a moss killer under wet conditions, and even so, right before you start to rake your lawn. Raking before using a moss killer will likely spread the moss further, but raking after it is dead will eradicate it and promote better breathability for better grass growth.

3. How do I permanently remove moss from my lawn?

To permanently remove moss from your lawn, you must identify and address the underlying issues causing the moss growth. This may include improving drainage, increasing sunlight exposure, adjusting the soil pH, or reducing the amount of shade in your lawn. Once you've addressed the underlying issues, you can use a moss killer to remove any remaining moss and prevent future growth.

4. What kills moss naturally?

There are several natural ways to kill moss on your lawn. One option is to use vinegar, an effective natural acid that can help kill moss. Simply mix equal parts white vinegar and water in a spray bottle and apply it to the affected areas.

Another option is to use baking soda, which can help raise the soil's pH level and make it less hospitable for moss growth. Mix one cup of baking soda with five cups of water and apply it to your lawn using a spray bottle or watering can. Other natural options include using soap and salt or even physically removing the moss by hand.

5. Why do I need a moss killer?

You will need a moss killer to eliminate moss infestation faster and encourage a healthier lawn. However, it is also important to find the underlying cause of the moss infestation and tackle it to prevent it from regrowing in a few months.

6. Will healthy grass grow after killing moss?

A few factors will influence the regrowth of thick, glossy glass even after you've killed the moss.

Firstly, you will need to ensure you tackle the cause of moss infestation, in most cases, poor soil pH, poor soil fertility, soil compaction, or more. If your soil pH is too low, it is an acidic environment that will encourage moss regrowth.

Alternatively, if soil fertility is poor, you will also need to feed nutrients to the soil even as you use a moss killer. Healthy grass will only grow uniformly if the root cause of moss is addressed.

7. Do I need to rake the dead moss?

Yes, it is vital not to leave dead moss in the yard, as this will encourage excess lawn thatching, which will inevitably encourage more moss regrowth.

8. Can I put grass seeds after moss killing?

Depending on how much damage you see on the lawn, you can plant new grass after the moss is killed. If there are big patches without grass, you can sprinkle a few seeds after treating the soil to encourage uniformity.

It is important to sprinkle the seeds carefully so they can sprout uniformly with existing grass and, in the long term, not require too much gardening to maintain a level surface.

Alternatively, if the patches are very small, you might not need to put seeds on the ground, as grass can spread with good health.

Ian Mutuli

About the author

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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