Lawns Reviews

Best Moss Killer Reviews: Complete Buyer’s Guide

Are you looking for how to kill moss on your lawn, path or roof? Read on as we review the best moss killer products on the market

Is moss creeping up your walls or roof? Moss provides a somewhat picturesque aesthetic to any home, giving it an authentic, traditional, and rustic look. There are over 12,000 species of moss, and it’s common in forest floor when it forms a carpet to slow drainage and retain water for plant life.

Moss is a critical component of any ecological system, helping to slow soil erosion and prevent water loss from the environment in dry periods. However, moss is technically a weed, and like other weeds, it can get out of hand if you don’t curb its growth.

Moss is problematic when it starts to take over your lawn and flowerbeds. It inhibits new growth, competing for nutrients and water with seedlings. If moss starts growing on your walls and between the roof shingles, it causes destruction, lifting the roof, causing leaks that lead to ice dam formation in the winter, and mold growth in the summer.

It’s possible to remove moss using a scarifying method with a rake. However, you’ll need to treat the affected area to prevent the moss from growing back. Removing moss from your roof, walls, and walkways require a chemical solution designed specifically to kill moss.

There are dozens of products available for killing moss in different parts of your home and yard. In this review, we’ll go over the ten best moss killer products available online.

Our Top Picks

If you want the best moss killer products available, our review offers you some top choices. From the ten listings we sourced online, we picked these three products as the best-in-class moss killers.

We have products for killing moss on a variety of surfaces, including your lawn. Choose the moss killer that suits your application, and you’ll never have to worry about moss invading your yard or home again.

Best Pick: Lilly Miller Moss Out for Roofs and Walks

This product wins our award for the best overall moss killer. Lilly Miller makes a range of moss killing products, with customized formulations for various applications. This product specializes in removing moss from your roof and walkways around the home. You get a potent moss killer with a spray-on application. Water the moss after application, and walk away. The fast-acting formula gets to work immediately, killing the moss in 24-hours. This 27-oz jug has enough coverage for 500-square feet.

Premium Pick: Wet & Forget Outdoor Mold Remover

This product is another premium brand for a moss killer product. You get a 48-oz jug of moss killer, with coverage of up to 2,000-square feet. The applicator jug allows you to spray the moss killer onto your roof without having to drag the ladder out of the garage. After the application, wet the moss and walk away. The formula kills the moss in 24-hours, preventing regrowth. The bleach-free formula is suitable for use around the home and non-toxic to people and pets.

Budget Pick: Scotts MossEx Easy-To-Use Shaker Jug

Scotts MossEx Easy-To-Use Shaker Jug, 4.59 lb.
  • Kills moss and thickens grass to help prevent future moss problems
  • Contains nutrients to green your lawn
  • Kills moss, not lawns - guaranteed (satisfaction guaranteed or your money back)
  • Apply in winter or spring when moss is actively growing, for use on all grass types
  • Easy to use shaker jug is ideal for smaller spaces or spot treatments

If you have a moss infestation in your lawn, this MossEx formula from Scotts is your top choice and the best budget buys in this review. This formula comes in an applicator jug, and you get a granular-based formula for easy spreading by hand. This product kills moss while improving the nutrition of your lawn. Within a week or two, you’ll notice the effects on the grass, with thicker blades and luscious green colors. Apply it in the wintertime or the spring when moss is active.

Moss Killer Reviews

Now that you know the top picks in this review, let’s unpack them in detail. We also found a few other products that are great choices for the best moss killer.

Read through the reviews, and check out our buyers guide for more information on choosing the right moss killer formulation for your home and application.

Lilly Miller Moss Out for Roofs and Walks

When moss starts getting into your roof shingles, it causes all sorts of problems. From rain leaks to ice dams, moss in your roof is an annoyance. Since moss grows quickly, you need to act immediately.

This moss killer for roofs and walkways by Lilly Miller is our top choice for the best overall moss killer in this review. You get a fast and effective formula that kills moss in 24-hours. This product lasts up to 18-months or longer, depending on your environmental conditions.

You get an easy application, thanks to the power spray bottle. Hook it up to the hose, and spray down your roof in minutes. There’s no need to grab the ladder from the garage, the spray shoots up to 30-feet in the air, and you get coverage for 500-square meters.

Use this product on your roof and the walkways around your home. The fast-killing formula provides long-lasting protection for your patio as well.

What We Liked
  • Premium moss killer brand
  • Protection for roofs and walkways
  • Sprayer bottle included
  • Easy application
  • 500-square feet coverage

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Wet & Forget Outdoor Mold Remover

This moss killer product wins our award for the best premium product in this review. You get a patented formula that kills moss in less than 24-hours. This moss killer comes in a 48-oz bottle, with enough coverage for 2,000-square feet.

Use this miss killer on walls, roofs, walkways, and the patio for outstanding results. This formula is easy to use. Hook the spray bottle up to the hose pipe, and wash away the moss in minutes. The powerful spraying action shoots a water jet 30-feet into the air, meaning there’s no need to get the ladder out.

This long-lasting formula protects your home for up to 18-months after application. There’s no need for rinsing or scrubbing the walls or roof. Spray and walk away – that’s all there is to your home maintenance with this product.

What We Liked
  • Premium moss killer brand
  • Comes in a power sprayer bottle
  • Easy application
  • Long-lasting formula
  • Effective moss killing action
  • Covers 2,000-square feet

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Scotts MossEx Easy-To-Use Shaker Jug

When moss starts growing on your lawn, it takes over quickly. You might not notice the infestation at first, but it will draw your attention when your grass starts thinning and turns brown. Moss competes for the same water and nutrients as grass, and it will deplete the nutrient content in your soil fast.

With Scotts MossEx, you get a specialized formulation designed to eliminate moss from your lawn. The shaker jug design provides fast and efficient spreading of the moss killer over affected areas.

This product is suitable for the spot treatment of your lawn, with ready-to-use granules. After you finish spreading, spray down the treated area with water to activate the moss killer. You get fast, effective results in less than 24-hours. One of the interesting characteristics of this moss killer is how it adds nutrients to your lawn. The addition of nutrients provides ideal growing conditions for healthy grass.

What We Liked
  • Ideal for spot treatments on your lawn
  • Affordable
  • Kills the moss, not your lawn
  • Money-back guarantee
  • Contains nutrients to optimize lawn health

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Scotts 3-in-1 Moss Control

If you have moss growing in your lawn, roof, and on your home walls, you need a comprehensive moss killing solution. For this type of maintenance task, you’ll need a liquid product that adheres to all surfaces.

Scotts 3-in-1 moss killer formula is a fantastic product for eliminating moss anywhere on your property. The patented formula works on lawns, walls, roofs, and walkways, providing long-lasting protection against regrowth.

You get a user-friendly spray bottle design with this product. Hook your hose up to the spray bottle for a fast and accurate dispensing of the moss killer on any surface. With this product, there’s no need to pull out the ladder to get onto the roof.

The applicator bottle’s powerful spraying action shoots 30-feet into the air, allowing for hassle-free application on your walls and roof. This formula won’t stain your walls, and you get a fast moss killing action that leaves your home and lawn looking fantastic in a few days.

What We Liked
  • Ready-mixed spray for easy application
  • 3-in-1 moss control
  • Suitable for use on walls, roofs, patios, and lawns
  • Starts killing moss immediately
  • Fast and effective results
  • Doesn’t stain walls
  • Attaches to a garden hose for power-sprayer action

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Lilly Miller Moss Out for Lawns

As mentioned, when moss gets onto your lawn, you need a specialized solution to help you clear the infestation. Don’t bother with using home remedies like bleach and laundry detergent to kill the moss. Those methods provide lackluster results, and they do more damage to your lawn than good.

We recommend looking at a specialized lawn product like Lilly Miller’s “MossOut.” This product has a specific formulation for lawns.

Spraying it on the grass kills moss instantly while providing the sprayed area with extra nutrients. The result is that your grass grows back stronger and thicker, catching up to the look of the rest of the grass on your lawn for an even aesthetic.

MossOut comes in a handy applicator body for easy spreading on your lawn. Hook up the applicator bottle to your hose, turn on the water, and spray down your grass. The formula gets to work right away, and your lawn will be back to health in less than a week.

What We Liked
  • Top-quality product for treating lawns
  • Fast killing action
  • Won’t damage the grass
  • Adds nutrients to your lawn
  • Handy spray bottle with hose attachment

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30-Seconds Spray and Walk Away

If you have moss, mold, and mildew growing around your yard, you need a one-stop solution for killing off everything in one treatment. If you don’t take action, these unfavorable garden monsters will start taking over your lawn, roof, and home.

Fortunately, this 30-seconds Spray and Walk Away product is the ideal treatment to resolve your problems. You get a potent moss killing formula that works on mold and mildew as well. This concentrate makes six gallons, with coverage for up to 5,000-square feet.

Spray this solution on your walls or roof, and then walk away. There’s no need for rinsing or scrubbing after application. In a few days, you’ll notice the results, and you get long-lasting protection for your home.

It’s a great choice for all types of surfaces around the home. However, we don’t recommend you use this product on your lawn. 30-Seconds features a bleach-free formulation with a neutral pH.

What We Liked
  • Easy 30-second application
  • No pressure washing needed
  • Ideal for use on roofs, walkways, and patios
  • Free from bleach and phosphates
  • Neutral pH

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Lilly Miller Moss Out for Roofs and Structures

This product is the granular version of the liquid product that wins the best overall product in this review. Lilly Miller released this granular version for use on flat roofs, patios, and walkways around the home.

You get the same potent, long-lasting formula, just in granular format. This product requires wetting after spreading. You can either wait for the rain or moisten it yourself using the garden hose. The fast-killing action on the moss has your roof back to its original condition in days.

A single application of this granular moss killer lasts up to a year, and you get coverage for up to 4,000-square feet. The granules also dilute in water. If you want to turn it into a spray, mix with water and apply using a spray gun.

What We Liked
  • A granular formula for easy hand spreading
  • Suitable for use on roofs and walkways
  • A single application lasts an entire year
  • Prevents regrowth
  • Covers up to 4,000-square feet

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Scotts Moss Control Granules for Lawns

This moss control product for lawns is another top choice for your turf this growing season. Scotts Moss control for lawns comes in a handy shaker jug for easy application. Take off the lid, and shake out the moss killer onto the affected area.

You get coverage for 1,250-square feet, with the fast and effective killing of moss. This formula includes nutrients for your lawn, helping damaged grass recover fast. The high iron content in the formula turns you grass a deep green color, providing a luscious look to your lawn.

This product is ideal for spot treatment of your lawn. It’s a cost-effective product with a long-lasting formulation for year-round protection for your grass, without the need for reapplications.

What We Liked
  • Easy spreader jug design
  • Complete control of lawn moss
  • Adds nutrients to your lawn
  • Effective, fast killing action
  • Easy application

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Scotts Turf Builder with Moss Control

If you’re looking for a turf builder and moss killer, Scotts Turf Builder with Moss Control is an excellent choice. This product is the choice of professional venues like golf courses, parks, and estates, providing long-lasting protection from moss for your lawn.

The granular design of this product makes it easy to spread by hand or using a dispenser. The formulation contains additional nutrients and iron to improve the health of your grass and encourage growth.

You get a fast killing action that gets to work as soon as you saturate the granules after spreading. This product also activates in the rain, providing excellent results in days. Some states may prohibit this product’s sale, so check with the vendor before making your purchase.

What We Liked
  • An excellent choice for parks, golf courses, and large estates
  • Kills moss and feeds your grass
  • Easy to spread granular design
  • Suitable for use in spreader machines
  • Fast killing action
  • Improves the lawns ability to absorb water and nutrients

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Bonide MossMax Lawn Granules

If you’re looking for a moss killer for your lawn, we recommend this Bonide product as a premium choice.

You get a fast-killing action on the moss, and extra nutrients included in the formulation. The result is the fast killing of moss and feeding of your grass, allowing damaged areas to catch up with the rest of the lawn.

This product comes in a granular format, with enough coverage for 1,000-square feet. The granular design is easy to spread by hand or with a dispenser. You’ll need to lightly water the lawn or wait for the rain to activate the moss killer.

What We Liked
  • Granular design with shaker tub
  • Easy application
  • Fast, effective killing action
  • Coverage for 1,000-square feet
  • Adds nutrients to the lawn

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Other Best Selling Options

SaleBestseller No. 1
BioAdvanced 704710B Moss and Algae Killer Ready-To-Spray, 32 oz
  • MOSS and ALGAE KILLER and CLEANER: Kills moss, algae, lichen, mold, and mildew wherever it grows and protects for months
  • 2-in-1 KILLER and CLEANER: Use on lawns, patios, roofs, buildings, decks, driveways, mulch, and more
  • KILLS WITHIN HOURS: Moss will quickly turn yellow and then brown, but must be physically removed once dead
  • NON-BLEACH FORMULA: BioAdvanced non-bleach formula will not stain or harm lawns
  • COVERAGE AREA: Treats up to 500 square feet
Bestseller No. 2
Scotts MossEx - Kills Moss but Not Lawns, Contains Nutrients to Green The Lawn, Moss Control for Lawns, Helps Develop Thick Grass, Treats up to 5,000 sq. ft, 18.37 lbs.
  • Scotts MossEx kills moss, not lawns and helps develop thick grass
  • Best applied during winter or spring when the lawn is moist and tall grass has been mowed to expose low-growing moss
  • This moss control product also contains nutrients to green your lawn
  • Apply using a Scotts broadcast, rotary, drop, or Wizz spreader
  • Treats up to 5,000 sq. ft.
SaleBestseller No. 3
Safer Brand 5325-6 SafeSafer Brand 32Ounces 5325 Moss and Algae Killer and Surface Cleaner Ready to Use 32O, 1 Pack
  • Moss, algae killer and surface cleaner
  • Most economical and convenient organic solution
  • This killer utilizes the natural effectiveness of potassium salts to rid your deck, roof, siding, walkways, lawn and more of algae and moss
  • Ready to use formula no mixing required; USDA national organic program compliant for use in organic gardening
  • OMRI Listed and compliant for use in organic gardening
Bestseller No. 4
Scotts MossEx 3-in-1 Ready-Spray, 32 oz
  • Scotts MossEX 3-in-1 Ready-Spray kills moss, algae and lichens
  • Fast-acting formula kills within hours
  • For use on lawns, decks, and patios
  • Won't stain concrete or other surfaces
  • To apply, just attach to a garden hose and spray
Bestseller No. 5
30 SECONDS Spray & Walk Away, 1 Gallon - Concentrate
  • 30 SECONDS Spray & Walk Away kills lichen, moss and algae
  • No pressure washing, rinsing, scrubbing, or hosing required. Simply spray and walk away. Results become visible over time
  • Works on many outdoor surfaces like roofs, sealed concrete, asphalt driveways and more
  • Bleach and phosphate-free, with a neutral pH
  • Improves traction on many surfaces, as well as appearance

Moss Killer Buyer’s Guide

The look of moss creeping up your walls adds an authentic aesthetic to any country home or granny flat. The appealing silky-green texture and look of the plant give the impression of wandering through the Shire. You half expect a Hobbit to jump out from behind a tree at any moment, and you feel like you’re in a fairy-tale.

While moss provides a pretty look to your home, it’s also an invasive nuisance that eventually needs removal. If the moss makes its way into your roof, it lifts shingles, causing leaks. Leaks cause water damage and ice dam formations in the winter, tearing your home apart.

If you don’t take care of the moss, you’re going to have to replace your roof eventually, and that cost a fortune. Moss can also start growing in your flowerbeds and lawn. The moss begins to compete for the same nutrients as your grass and flowers, resulting in thinning spots in your lawn and suppressed seedlings.

A good moss killer product helps you resolve this issue before it gets out of hand and starts costing you money. In this section, we’ll walk you through everything you need to know about choosing the right moss killer for your home and yard.

What are the Types of Moss Killers and How Do They Work?

Moss killer products come in two types: granular and liquid. Many brands promote moss killer products, with various formulations to suit different applications around the home and yard.

Choosing the right moss killer product depends on how you want to use it. Some formulas are suitable for use on the walls, roof, and lawn, while others have specialized formulations for use on the lawn or the roof specifically.

Choose the right product to match your application. Using the wrong product on your lawn might damage the grass, or using a lawn moss killer on your roof won’t give you the desired results.

Here is the difference between granular and liquid moss killer products and what you can expect from using them around your home and yard.

Granular Moss Killers

A granular moss killer is a great option for use around the yard. This product features tiny, water-soluble granules. You get them in bags or handy applicator jugs for easy use on your lawn and walkways around the house.

Granular moss killers are ideal for spreading by hand, and they also work in spreader machines to reduce the work involved with treating large areas, like golf courses.

Granular products are not suitable for use on roofs. It leaves streaks that stain your shingles, and you won’t get the same results as a liquid-based moss killer product.

Liquid Moss Killers

Liquid moss killers are a great choice for versatile use around the home. Most liquid models feature specialized formulation for use on your roof, but there are a few available for your lawn as well. Liquid-based formulations are ideal for use on the roof.

They feature spray containers that connect directly to your hose pipe. When you turn on the hose, the container automatically mixes the moss killer to the right amount of water. The hose pressure runs through the hand-held applicator, shooting a jet of water and moss killer mixture up to 30-feet in the air.

This applicator setup makes it easy to treat your roof without the hassle of dragging the ladder out of the garage. You can reach the top of your roof while standing on your lawn. Liquid-based products are also ideal for use on your lawn and flower beds.

Most formulations come with extra iron and other nutrients for your lawn. As a result, the affected area gets a boost of valuable nutrition, helping it catch up to the rest of your lawn. Liquid moss killers offer easy application, providing long-lasting protection to your roof, walls, patio, walkways, and your lawn.

Most formulas only require replication after 18-months to 3-years, depending on environmental conditions.

How Do I Use Moss Killer?

How you apply your moss killer makes a significant difference in its efficacy at removing moss from the walls, roof, and other areas around your home and yard.

Applying Your Moss Killer

If you’re using a granular moss killer, you can spread it by hand, use a spreader machine, or a shaker bottle included with your purchase. Granular moss killers are suitable for use over wide areas or as a spot treatment. They also provide a preventative measure if you live in an area that gets frequent seasonal moss growth.

Simply shake the moss killer onto the affected area, or load it in your dispenser and walk around the gold course or yard. Granular moss killer requires moisture to activate the herbicide in the formula. Therefore, it’s a good idea to spread it before it rains, allowing for the product’s best penetration into the moss.

If it’s not raining, make sure you give the moss killer a light watering. The water activates the chemical agents in the formula, releasing the moss-killing power of the formula. Most moss starts to die off immediately and should be dead within a week or so after application. The time it takes for the moss killer to work will depend on the product’s strength and how much moss you have to kill.

A liquid moss killer is much easier to apply. The container you receive with the product connects to your garden hose with a leak-free fitment. You prime the hose and release the pressure through the container. The water pressure mixes the water and moss killer, sending it out in a powerful jet that reaches the top of your roof.

You can use a liquid moss killer on your lawn or your roof. Liquid formulations offer you the best service life, lasting up to 3-years, depending on your environmental conditions.

Do I Need to Scrape the Dead Moss off the Roof and Walls?

The formulations in this review don’t require any scraping to remove the dead moss. Some products might need you to rake out the moss. If you leave it on the lawn or on the roof, it absorbs more water during the rains and eventually starts to regrow.

However, the products in this review kill the moss completely, including the roots. There’s no chance of it growing back, and the rain eventually washes it away. That means less hassle and maintenance on your part.

Moss Killer FAQs

How often do I have to reapply a moss killer?

According to most brands, you need to reapply moss killer every 18-months to 3-years, depending on the quality of the product and your environmental conditions.

Is moss killer safe for use around kids and pets?

All the moss killer brands in this review are non-toxic and safe for use around people and pets. The biodegradable formulas in this review don’t harm the environment or local wildlife.

Can I use a regular weedkiller on moss?

Yes, you can even use regular bleach on moss. However, that doesn’t mean it’s the right solution to curb the problem. Specialized moss killer features specific formulation for eliminating moss around your home. They might cost more than homemade remedies, but they offer you better performance and prolonged protection for your home.

Where do I buy the best moss killer?

We recommend picking up your moss killer products from Amazon, the world’s largest online retailer. Amazon offers buyer protection on your order, with the best prices and range. Prime members qualify for fast, free shipping to your doorstep.

Moss Killer – The Verdict

By now, you should have an idea of the right moss killer product for your application. Moss typically pops up in specific areas around the yard where there is plenty of shade and cooler temperatures. Choose the product to match your application, whether it’s getting rid of moss on your roof, lawn, walls, or walkways. There are plenty of custom products in this review to sort any moss infestation.

However, if you’re having issues with selecting the right product, why not rely on our top picks? We took these three products for the best moss killer solutions around your home. Choose the one that suits your application, and wash that moss away.

The Lilly Miller Moss Out for Roofs and Walks is our top choice for the best overall moss killer in this review. This product features the best all-around use for your home, with potent moss-killing action on roofs and walkways. This product comes in a dispenser jug, with enough formula to treat 500-square feet.

The Wet & Forget Outdoor Mold Remover is our choice for the best premium moss killer product in this review. You get a 48-oz jug, which is enough to treat 2,000-square feet. The handy applicator jug connects to your home for fast and accurate treatment of your roof, without the need to get on a ladder.

The Scotts MossEx Easy-To-Use Shaker Jug is the ideal choice for homeowners looking for the best moss killer for lawns. If your lawn is struggling with a moss infestation, this product clears it in a few days. The fast-acting granular formula comes in a shaker tub for easy spreading, and it feeds your lawn while removing the moss.

Robin owns his own Landscape Gardening company based in the UK and has over 10 years professional experience working outdoors, creating beautiful landscapes for his clients in the UK. He is also a keen garden-grower and maintains his own fruit and vegetable gardens. He also has a level 3 Certificate in Practical Horticulture from The Royal Horticultural Society and is currently working on his first book about gardening. Contact him at

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