· Mason Everett · Reviews · 8 min read
7 Best Moss Killer For Grass Solutions for a Healthy Lawn
Dealing with persistent moss invading your pristine lawn can be incredibly frustrating for any homeowner trying to maintain curb appeal.
Finding the best moss killer for grass requires balancing effective eradication with lawn safety, ease of application, and overall value for money.
Fortunately, today’s market offers excellent solutions, ranging from powerful granular treatments with added fertilizer to eco-friendly liquid sprays safe for pets and kids.
We have analyzed the top products available to help you make an informed decision and effectively reclaim your green space from moss.
Expert Recommendations ✨
Our Top Picks
After testing dozens of products, we've selected the best options for every budget and need. Each recommendation has been thoroughly evaluated for performance, durability, and value.
Scotts MossEx Moss Killer for Lawns
This easy-to-use shaker jug provides a highly effective granular solution that kills moss while simultaneously feeding your grass to encourage regrowth. It is the ideal balance of convenience and performance for typical suburban lawns.
ECO Garden PRO Organic Vinegar Weed Killer
For households with children or pets, this organic, vinegar-based formula offers peace of mind while effectively targeting moss. It provides rapid results without relying on harsh synthetic chemicals.
Scotts MossEx 3-in-1 Ready Spray
If you need quick results over a medium-sized area, this hose-end sprayer delivers a powerful liquid formula that kills moss within hours. The non-staining formula is a major plus for use near patios.
Scotts Turf Builder Triple Action for Moss Control
This large 40 lb. bag is perfect for extensive properties, covering up to 8,000 sq. ft. It kills moss, fertilizes the lawn, and helps thicken grass to prevent future infestations.
7 Best Moss Killer For Grass
Ready to tackle that spongy green invader and restore your lawn’s glory? These top-rated moss killers act quickly to eradicate infestations and help restore your turf’s health and appearance. Read on to find the perfect solution tailored to your specific yard conditions and needs.
Scotts MossEx Granular Moss Killer and Fertilizer
Best in class for easy granular application and lawn feeding
Scotts MossEx in the shaker jug is a standout choice for homeowners looking for a straightforward solution to lawn moss.
The granular formula is designed to kill moss effectively without harming desirable grasses when used as directed.
Beyond just killing the moss, it contains nutrients that help green up your lawn, encouraging grass to fill in the bare spots left behind.
The 4.59 lb.
jug is manageable and perfect for treating spot infestations or smaller lawn areas up to 1,250 sq.
ft.
It is best applied during winter or spring when moss is actively growing and the soil is moist.
Product Specs
| Application Type | Granular Shaker Jug |
| Coverage Area | 1,250 sq. ft. |
| Primary Benefit | Kills moss and greens grass |
| Best Season | Winter/Spring |
Features
- Easy-to-use shaker jug applicator for targeted treatment
- Kills moss without harming existing lawn grass
- Contains nutrients to help develop greener grass
- Treats up to 1,250 sq. ft. per container
- Ideal for winter or spring application when moss is active
What We Like
- Dual action kills moss and feeds grass
- No spreader needed for application
- Effective on standard lawn grasses
- Manageable size for storage
What We Don't Like
- Not suitable for large acreage without buying multiple jugs
- Requires lawn to be moist for best activation
Why We Selected This Product
We selected this as our top granular pick because of its dual-action formula and ease of use.
The integrated shaker jug eliminates the need for a separate spreader for smaller jobs, and the added fertilizer is a crucial step in lawn recovery that many competitors lack.
It delivers consistent results for typical residential lawn needs.
User Experience
Users frequently praise how quickly the moss turns black, indicating it is dying, often within a few days of application.
The convenience of the shaker jug is a common highlight, allowing for quick spot treatments without extensive setup.
Some users note that for very thick moss, a second application or heavy raking beforehand is necessary for the best results.
BioAdvanced 2-in-1 Moss and Algae Killer Concentrate
Best in class for versatile use on lawns and hard surfaces
BioAdvanced 2-in-1 Moss and Algae Killer offers excellent versatility for homeowners dealing with moss not just on the lawn, but also on hardscapes.
This liquid concentrate is formulated to kill moss, algae, and mildew on a wide variety of surfaces including lawns, roofs, patios, decks, and driveways.
A major advantage of this product is its non-staining formula; unlike some iron-based treatments, it will not leave rust marks on concrete or siding when used as directed.
It works by turning the moss yellow and then brown, preparing it for physical removal.
Product Specs
| Application Type | Liquid Concentrate |
| Surface Safety | Non-staining |
| Versatility | Lawns, Roofs, Patios, Decks |
| Container Size | 32 oz |
Features
- 2-in-1 formula kills moss and algae effectively
- Safe for use on lawns, roofs, patios, and decks
- Non-staining formula protects concrete and siding
- Provides protection that lasts for months
- Concentrate formula allows for adjustable dilution
What We Like
- Highly versatile for multiple surfaces
- Does not stain hardscapes
- Economical concentrate form
- Effective against algae and mildew too
What We Don't Like
- Requires a separate tank sprayer for application
- Dead moss must still be physically removed
Why We Selected This Product
This product earned its spot due to its remarkable versatility.
Many homes suffer from moss on roofs and patios simultaneously with lawn infestations.
This single bottle addresses all those areas safely.
The non-staining feature is a critical differentiator that protects your property value while you treat the problem.
User Experience
Homeowners appreciate being able to use one product for their deck, roof, and lawn edges.
Users report that it effectively kills moss within a few days, turning it brittle for easy pressure washing or raking.
The concentrate format is seen as economical, though it requires a separate tank sprayer for application.
Ortho GroundClear Weed and Grass Killer with Wand
Best in class for spot-treating moss on walkways and patios
Ortho GroundClear is a powerful, fast-acting solution designed for total vegetation control in non-lawn areas.
It is important to note that this product is a non-selective killer; it will kill moss, but it will also kill any grass it touches.
Therefore, it is best used for moss growing in cracks on sidewalks, driveways, patios, and in landscape beds where you do not want any plant growth.
It absorbs on contact and starts showing results in as little as 15 minutes.
The included Comfort Wand makes pinpoint application easy without bending over.
Product Specs
| Application Type | Ready-to-Use Liquid Spray |
| Applicator | Comfort Wand |
| Action Time | Results in 15 mins |
| Formula Type | Non-selective (kills grass) |
Features
- Fast-acting formula shows results in just 15 minutes
- Kills moss, weeds, and grasses on contact
- Includes battery-operated Comfort Wand for precise application
- Rainproof in 2 hours upon drying
- People and pets may enter area after spray has dried
What We Like
- Extremely fast visible results
- Excellent precision applicator wand
- Ready-to-use with no mixing required
- Effective on tough weeds and moss
What We Don't Like
- Will kill lawn grass if oversprayed (non-selective)
- Not for broadcast use on turf
Why We Selected This Product
While not for broadcasting over a lawn, we selected this because moss often invades hardscapes adjacent to grass.
This is the best tool for those specific areas.
Its fast action and the convenience of the battery-powered wand make it incredible for targeted edging and clearing moss from paver joints without hand-weeding.
User Experience
Users are impressed by the speed of this product, often seeing vegetation wilt within an hour.
The Comfort Wand is repeatedly praised for saving backs and knees during application on driveways and sidewalk cracks.
Buyers confirm it is highly effective but emphasize caution to avoid overspray onto desirable lawn grass.
ECO Garden PRO Organic Vinegar Weed and Moss Killer
Best in class for pet and child-safe organic treatment
ECO Garden PRO offers a powerful alternative for those prioritizing safety and environmental impact.
This organic herbicide uses natural white vinegar, organic rock salt, and biodegradable plant activators to eliminate moss and weeds.
It is designed to be safe for pets, children, bees, and fish once dry.
The proprietary formula delivers rapid results, often within 24 hours.
Like other liquid killers, it is generally non-selective, so care should be taken when applying it directly within a lawn, making it ideal for spot treatments or moss on hardscapes, mulch beds, and around flower beds.
Product Specs
| Active Ingredient | Natural White Vinegar |
| Safety | Pet/Kid safe when dry |
| Action Time | Within 24 Hours |
| Formula Class | Organic / Biodegradable |
Features
- Pet and kid-safe formula when dry
- Organic, glyphosate-free herbicide using natural vinegar
- Delivers immediate results, usually within 24 hours
- Effective on moss, clover, dandelions, and poison ivy
- 100% biodegradable and phosphate-free
What We Like
- Environmentally friendly and safe for families
- No synthetic toxic chemicals
- Works quickly on surface vegetation
- Ready-to-use formula
What We Don't Like
- Strong vinegar odor during application
- Can damage surrounding grass if not applied carefully
Why We Selected This Product
We included ECO Garden PRO as the premier choice for the eco-conscious consumer and pet owners.
The demand for glyphosate-free, natural alternatives is high, and this product proves you don't need harsh synthetic chemicals to effectively kill moss.
Its safety profile is its strongest selling point.
User Experience
Parents and pet owners express great relief using a product that doesn't require keeping the yard off-limits for days.
Users report that it works surprisingly quickly for a natural product, turning moss and weeds brown within a day.
The strong vinegar smell upon application is noted but dissipates relatively quickly.
Scotts MossEx 3-in-1 Ready-Spray Hose-End Applicator
Best in class for rapid liquid application over medium areas
The Scotts MossEx 3-in-1 Ready-Spray is designed for speed and convenience when treating medium-sized lawn areas or various hard surfaces.
The ready-spray format means you simply connect your garden hose to the bottle and start spraying; the tool automatically mixes the concentrate with water at the correct ratio.
It is a fast-acting liquid formula that kills moss, algae, and lichens within hours of application.
Crucially, like the BioAdvanced option, this formula is non-staining to concrete, making it safe for use near sidewalks and patios.
Product Specs
| Application Type | Ready-Spray Hose-End |
| Coverage | Up to 500 sq. ft. |
| Targets | Moss, Algae, Lichens |
| Feature | Non-staining |
Features
- Convenient hose-end sprayer for easy application
- Fast-acting liquid formula kills within hours
- Kills moss, algae, and lichens effectively
- Non-staining to concrete and other surfaces
- Treats up to 500 sq. ft. per bottle
What We Like
- No mixing or measuring required
- Very fast application process
- Safe for concrete surfaces
- Visible results in hours
What We Don't Like
- Limited coverage area per bottle (500 sq ft)
- Cannot adjust the dilution rate
Why We Selected This Product
This product was selected for its ultimate convenience in liquid application.
The hose-end sprayer removes the guesswork of mixing concentrates and allows homeowners to cover 500 sq.
ft.
very quickly.
It's an excellent middle ground product—easier than mixing your own, but covering more ground faster than a small trigger sprayer.
User Experience
Users love the plug and play aspect of hooking up the hose and spraying immediately.
It is frequently complimented for how fast it turns moss black, giving visual confirmation that it's working.
Several reviews mention its effectiveness on roof moss when sprayed from a ladder, in addition to lawn use.
Scotts Turf Builder Triple Action for Moss Control
Best in class for treating large lawns and thickening grass
For homeowners with substantial lawn square footage battling moss, the Scotts Turf Builder Triple Action is the most efficient choice.
This large 40 lb.
bag covers an impressive 8,000 sq.
ft., making it vastly more economical for big yards than smaller shakers or spray bottles.
It provides a triple-threat approach: it kills existing moss, feeds the lawn to encourage greener, healthier grass, and helps thicken the turf to crowd out future moss growth.
It is designed for application with a standard broadcast spreader during the winter or spring.
Product Specs
| Application Type | Granular (Spreader needed) |
| Coverage | 8,000 sq. ft. |
| Weight | 40 lbs. |
| Functions | Moss Control + Fertilizer |
Features
- Massive coverage up to 8,000 sq. ft. for large lawns
- Triple action: kills moss, feeds grass, thickens turf
- Apply during winter or spring when moss is active
- Safe for use on most grass types when used as directed
- Requires a broadcast or drop spreader for application
What We Like
- Best value for large areas
- Promotes long-term lawn health by thickening grass
- Kills moss while fertilizing
- Consistent broadcast application
What We Don't Like
- Heavy bag is difficult to transport and store
- Requires a separate spreader tool
Why We Selected This Product
Size and value drove this selection.
If you have a quarter-acre lot or more, small containers aren't practical.
This product provides the necessary volume to treat the whole lawn at once.
Furthermore, the focus on thickening the grass is essential for long-term moss prevention, addressing the root cause rather than just the symptom.
User Experience
Owners of large properties find this product indispensable for seasonal lawn maintenance.
Users report that it effectively turns wide swaths of moss black while simultaneously giving the surrounding grass a noticeable deep green boost.
The heavy bag requires effort to handle, but the coverage is deemed worth it.
Roundup Weed and Grass Killer with Pump 'N Go Sprayer
Best in class for non-selective heavy-duty moss eradication
Roundup is a widely recognized name in vegetation control, and this product is a heavy-duty, non-selective killer.
It is designed to kill virtually any plant it touches down to the root, including tough moss, grasses, and broadleaf weeds.
Because it kills grass, it should NOT be used for broadcast spraying on a lawn.
Instead, it is the ultimate tool for completely clearing moss from gravel driveways, mulch beds, along fences, or in patio cracks where no plant life is desired.
The included Pump 'N Go 2 Sprayer provides up to 10 minutes of continuous spray for large clearing jobs.
Product Specs
| Application Type | Liquid Pump Sprayer |
| Formula Type | Non-Selective (Kills Grass) |
| Rainproof | 30 Minutes |
| Sprayer Duration | Up to 10 mins continuous |
Features
- Kills tough weeds, grasses, and moss to the root
- Non-selective formula kills all treated vegetation
- Pump 'N Go 2 Sprayer provides continuous spraying action
- Rainproof in as fast as 30 minutes
- Visible results usually seen in hours
What We Like
- Extremely effective total vegetation killer
- Continuous sprayer reduces hand fatigue
- Kills to the root to prevent regrowth
- Fast rainproof time
What We Don't Like
- Will severely damage or kill lawn grass (non-selective)
- Chemical-heavy formula not for organic gardening
Why We Selected This Product
We selected this for situations requiring total eradication in non-lawn areas.
Sometimes moss is mixed with stubborn weeds in a gravel path or driveway, and you need a 'nuclear option' to clear everything out.
The continuous spray feature of the Pump 'N Go system significantly reduces hand fatigue compared to standard trigger sprayers on large jobs.
User Experience
Users appreciate the sheer power of this product for clearing fence lines and gravel areas of all vegetation, including thick moss patches.
The Pump 'N Go sprayer is a favorite feature, with many noting how much easier it is to tackle large driveways without constantly squeezing a trigger.
It is recognized as a highly effective, albeit aggressive, solution.
What to Look for Before Buying the Best Moss Killer For Grass
Choosing the right product depends heavily on your specific situation, lawn size, and environmental concerns. Here is a breakdown of key factors to consider before making a purchase.
Find Your Need
The most critical distinction is between selective and non-selective killers.
- Selective Killers (Lawn Safe): Products like Scotts MossEx are formulated to kill moss but leave your grass unharmed. These are essential for treating moss right in the middle of your lawn.
- Non-Selective Killers: Products like Ortho GroundClear or Roundup will kill the moss AND the grass. These are best for driveways, patios, or fence lines where you want total vegetation clearance.
You also need to decide between granular and liquid. Granular products often include fertilizer and are good for broadcasting over areas. Liquids are typically faster-acting and better for spot treatments or hard surfaces.
Budget
Moss killers are generally affordable, but costs vary based on coverage.
- Small Spot Treatments ($15 - $25): Shaker jugs, ready-to-use spray wands, and small hose-end sprayers fall into this range. They are convenient but expensive per square foot.
- Large Area Treatments ($30 - $60+): Large bags of granules (like the 40lb Scotts bag) or concentrated liquids offer much better value for treating entire lawns but have a higher upfront cost.
Key Features
Look for these specifications on the label:
- Active Ingredient: Iron derivatives (Ferrous Sulfate) are common in lawn-safe granular products and usually turn moss black. Fatty acid soaps or vinegars are common in organic or liquid sprays and work by drying out the moss.
- Added Fertilizer: Many granular products include nitrogen to help the grass green up and fill in the bare spots once the moss dies.
- Rainproof Time: How long does the product need to dry before rain won’t wash it away? This can range from 30 minutes to several hours.
Quality & Durability
While this applies less to the chemical itself, it applies to the application method.
- Granules: Look for resealable bags to keep moisture out between uses so the product doesn’t clump.
- Sprayers: For products with included wands or pump sprayers, check reviews for durability. Cheap sprayers that clog or break mid-job are a major frustration.
Brand Reputation
Established lawn care brands like Scotts, Ortho, and BioAdvanced generally offer reliable, consistent formulations that have been tested extensively. However, newer brands focusing on organic solutions, like ECO Garden PRO, are building strong reputations for safety and efficacy without synthetic chemicals.
Portability/Size
Consider how much weight you can handle and how much storage space you have.
- A 40lb bag of granules provides the best value but is heavy to lift into a cart and requires dry storage space.
- A 1-gallon jug with a sprayer is highly portable for quick walks around the yard to target specific patches.
Is it A Wise Decision to Buy moss killer for grass?
Investing in a dedicated moss killer for grass is almost always a wise decision if you value a healthy lawn. While manual removal (raking) is possible, it is incredibly labor-intensive, back-breaking work, and often ineffective. Raking tends to spread moss spores, potentially making the problem worse the following season.
A quality moss killer chemically terminates the moss plant and its spores. Furthermore, many of the best granular options include fertilizers. This is crucial because moss thrives where grass is weak and soil is nutrient-poor. By killing the moss and simultaneously feeding the grass, you are addressing both the symptom and one of the root causes. Over the long term, maintaining a thick, healthy lawn is the best defense against moss, and these products are the kickstart that process needs. The relatively low cost of the product protects the much higher investment value of your property’s landscaping.
What Is the Best Way to Choose moss killer for grass?
Selecting the right product involves a simple step-by-step assessment of your yard.
Identify the Location: Is the moss in the middle of good grass, or in a driveway crack?
- In Grass: You MUST buy a “lawn safe” or selective granular or liquid product.
- In Driveway/Patio: You can use stronger, non-selective liquid killers or multipurpose cleaners that don’t stain.
Measure the Area: Roughly calculate square footage. Don’t buy a 40lb bag for a 20 sq. ft. patch, and don’t buy a small shaker jug for a half-acre lawn.
Check the Weather: Most granular products work best when applied to moist lawn (so the granules stick to the moss leaves) but when no heavy rain is forecast for 24 hours. Most sprays need a dry day to dry onto the plant.
Consider Safety: If you have pets or kids who play on the lawn daily, lean toward organic or products with short re-entry times (wait until dry).
Professional Tip: Don’t just kill the moss. Once it turns black and dies (usually after a week or two), you must vigorously rake out the dead thatch. Then, reseed those bare spots. If you leave bare soil, the moss will simply return next year.
FAQ
What is the best moss killer for grass for beginners?
For beginners, a granular product in a shaker jug, like Scotts MossEx, is the easiest. There is no mixing chemicals, no complex sprayers to operate, and it feeds the lawn while killing the moss, reducing the chance of error.
How much should I spend on moss killer for grass?
Expect to spend between $20 and $40 for a typical suburban lawn. Small spot treatments can be found for under $20, while large bags for expansive properties may cost over $50.
What features are most important in moss killer for grass?
The most important feature is selectivity—ensure it is labeled “safe for lawns” if applying to grass. Secondary features to look for are added fertilizer to aid lawn recovery and a fast-acting formula.
How do I maintain my moss killer for grass?
Store granular products in a cool, very dry place, keeping the bag tightly sealed to prevent clumping from moisture. For liquids, ensure caps are tight and store them in an area that does not freeze over winter.
Are expensive moss killer for grass worth it?
More expensive usually means a larger quantity (better value per pound) or a more convenient application method (like a battery wand). If you have a large area or value convenience, the higher price is often justified.
What brands make the best moss killer for grass?
Scotts is the market leader for granular lawn-safe treatments. BioAdvanced is highly regarded for versatile liquid sprays. ECO Garden PRO is a top choice for organic, safe alternatives.
How long do moss killer for grass typically last?
The product itself, if stored correctly, lasts for years. The effect on your lawn depends on conditions; a single treatment usually clears moss for a season, but if underlying conditions (shade, poor drainage) aren’t fixed, it will eventually return.
Can I find good moss killer for grass on a budget?
Yes. Granular products bought in larger bags generally offer the lowest cost per square foot of coverage. Generic iron sulfate products can also be cost-effective if you are willing to use your own spreader.
Final Verdict
After extensive research into efficacy, ease of use, and value, our top recommendation for most homeowners is the Scotts MossEx Granular Moss Killer. Its dual-action formula that kills moss while fertilizing the grass, combined with the convenient shaker jug for typical yard sizes, makes it the most balanced and effective choice.
For those with extensive properties looking for the best value, the large bag of Scotts Turf Builder Triple Action is the smart economic choice. Alternatively, if safety for pets and children is your primary concern, the organic, vinegar-based ECO Garden PRO offers effective treatment without synthetic chemicals.
To get started, identify whether you need a lawn-safe granular product or a hard-surface liquid spray, measure your area, and choose the product above that fits your needs to reclaim your lawn today.
Get the Scotts MossEx Granular Moss Killer here:
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