When homeowners say that they want a nice green backyard they don’t mean moss. Moss can get a foothold on lawns, gardens, patios, driveways and walkways then before you know it the moss can quickly grow into a problem. Areas in shade where water can pool will always invite moss to gross, so between bricks on paths and driveways can be problematic. Unlike other invaders that can be hard to deal with, moss is relatively easy to control with a good moss killer.
Driveway Moss Killer is a chemical solution that kills moss, mildew, mold, and similar growth that can sometimes occur on driveways, patios, roofs, and even in lawns. Such growths can be challenging to remove, especially in areas where there is both warmth and high humidity. The best driveways moss killers combine effective, fast acting formulations with easy to use sprayers that make application quick and easy. Since moss is easy to kill, these formulations are safe to use while also often being completely natural and biodegradable.
Best Driveway Moss Killer
Our pick for the best driveway moss killer is Wet and Forget Outdoor Moss and Mildew Killer. It is environmentally friendly and has a formulation that is free of bleach and acidic chemicals. Wet and Forget uses naturally occurring moisture to activate and gently remove unwanted growth. Since it is activated by dew or rainfall, it is a low-labor product that works without scrubbing.
- Wet & Forget Ready To Use Outdoor Cleaner comes...
- Use attached sprayer apply generously to dry...
- Cleans over time with the wind and rain, green...
- It is bleach free and non-acidic; spray 100 feet...
- Each bottle has an unlimited shelf life and treats...
Last update on 2025-04-18 / Affiliate links / Images from Amazon Product Advertising API
Runner Up: Best Driveway Moss Killer
30 Seconds Outdoor Cleaner was our runner up choice and is perfect for homeowners that do not want to wait around for products like the Wet and Forget Outdoor Moss Killer to do the job. 30 Seconds Outdoor Cleaner is safe for lawns and other plants, while still being strong enough to tackle tough stains and leave your deck or patio looking like new. It makes cleaning moss off your driveway easy.
No products found.
Budget Choice: Driveway Moss Killer
Safer Brand Driveway Moss Killer is sold in a ready-to-use handheld spray bottle. It does not attach to a hose, nor does it have a battery-powered assist for delivery. However, this basic delivery system is available at less than half the cost of several brands with fancier delivery systems. It is reasonably effective at killing moss so for small patches of growth in areas that are easy to reach this would be a good choice.
Last update on 2025-04-14 / Affiliate links / Images from Amazon Product Advertising API
Driveway Moss Killer Reviews
Below are detailed reviews on the Top 6 choices we found for Driveway Moss Killer. Any of the products on this list can help you get the job done, with differences primarily being the delivery method and harshness of the chemical. Take a look at the details and the bottom line for each moss killer to find the best solution for your particular job.
Safer Brand Moss and Algae Killer
Key Points at a Glance
- Use on decks, roofs, sidings, walkways, and lawns
- Weighs 1.67 pounds
- 32 oz Bottle
- Shipped only inside the USA
- USDA organic approved
- Hand Spray
- Relatively inexpensive
The Details
Safer Brand uses the natural ability of potassium salts to kill moss and algae on outdoor surfaces. It is USDA organic program compliant, and can therefore be used in conjunction with organic gardening projects. The formula comes in a ready-to-use 32 ounce spray bottle.
The Bottom Line
Unfortunately, some people report that it is not as effective as a few of the other sprays, and that it requires a heavy application over time to work. Since this is a natural solution that does not use any harsh chemicals that can be reasonably expected. One user posted a reminder that the stuff is slippery like soap, and can make decks or stairs dangerous immediately after application.
- Moss, algae killer and surface cleaner
- Most economical and convenient organic solution
- This killer utilizes the natural effectiveness of potassium salts to...
- Ready to use formula no mixing required; USDA national organic program...
- OMRI Listed and compliant for use in organic gardening
Last update on 2025-04-14 / Affiliate links / Images from Amazon Product Advertising API
Lilly Miller Moss Out
No products found.Key Points at a Glance
- Quick acting in just a few hours
- Might damage ornamental shrubbery
- Sprayer might leak
- Attaches to a garden hose or sprayer
- Sprayer applies treatment up to 25 ft
- Does not stain
- No Mixing required
- One application lasts up to a year
The Details
This is stout stuff! Users report that it will certainly kill the moss, but be careful because it might also kill other nearby plants as well. It has the advantage that it can be attached to a garden hose to easily spray a sidewalk or a power sprayer to apply it to out of reach places like a tall roof without needing a ladder. A few users reported that the sprayer malfunctioned and leaked on the user.
No products found.
Scotts Moss Ex 3-in-1 Ready Spray
Key Points at a Glance
- Fast Acting
- Formulated to work on decks, walls, and lawns
- Not for use on ornamental plants
- Attaches to hose
- Won’t stain surfaces
- Covers up to 500 square foot
The Details
MossEx by Scotts works to kill moss using a fast acting formula. It is formulated to safely work on stone, wood or lawns, but is not recommended for use on trees, shrubs, or other broadleaf plants. All of this is simply the way it is formulated to work. The bottles of spray solution attach directly to a hose, allowing water to flow through the nozzles picking up solution and applying it as needed.
The Bottom Line
Users report that fifteen feet is about the limit for applying this spray with a garden hose. It won’t stain concrete or brick surfaces so is safe to use on lawns, decks, and patios. It acts fast and kills moss within hours of the first application.
- Use this moss control product any time during the year by connecting...
- Scotts MossEx 3-in-1 Ready-Spray is a fast and effective way to...
- This fast-acting liquid formula kills within hours and does not stain...
- One 32 fl.oz. container of Scotts MossEx 3-in-1 Ready Spray treats up...
- For use on lawns, ornamental gardens, around homes and on roofs,...
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
30 Seconds Outdoor Cleaner
No products found.Key Points at a Glance
- Solution is effective
- Can bleach fabric
- Some sprayers malfunction and difficulty with batteries in sprayer
- Safe for use on lawns and plants when used as directed
- In use since 1977
- Easy to Spray on, Hose off
- Cleans moss, algae, lichen, and similar problems
- Breaks down in soil so it won’t harm landscaping
The Details
This is a versatile cleaning solution that can be used on a variety of outdoor surfaces. Reports indicate that the solution works great, although caution should be used because it can bleach the color out of fabric. This chemical formulation is spray on and hose off.
The Bottom Line
This cleaner shared the same problems that showed up with some of the other brands: the sprayer simply did not perform as advertised and had a more limited reach than indicated. Some people discovered that a battery change fixed the problem but many users reported that they simply transferred the liquid to a different container for applying.
No products found.
Wet & Forget Outdoor Cleaner
Key Points at a Glance
- 64 oz. size
- Bleach free
- Biodegradable
- Spray and Leave formula, slow acting over time
- Mold and mildew removal
- Attaches to hose or sprayer
- Covers 60 – 180 square feet
The Details
This is a bleach-free product that offers no scrub removal of mold, mildew, and algae stains. User reports indicate that this moss remover really works great. It has an attached sprayer and comes in a 64 oz bottle that provides coverage of 60-180 square feet.
The Bottom Line
Wet & Forget gets sprayed on and then reacts with dew or rainwater to activate. This allows it to work over the passage of time. No brushing or scrubbing necessary. With that said, it is not a miracle cure for heavy growth or long neglect. High humidity can also work against it. It is biodegradable but might not be compatible with some types of vegetation. Read the label carefully and apply to test spots before using over a large area.
- Wet & Forget Ready To Use Outdoor Cleaner comes with a high-capacity...
- Use attached sprayer apply generously to dry surface on a cool day to...
- Cleans over time with the wind and rain, green stains clean up within...
- It is bleach free and non-acidic; spray 100 feet away from lakes,...
- Each bottle has an unlimited shelf life and treats 60 - 180 square...
Last update on 2025-04-18 / Affiliate links / Images from Amazon Product Advertising API
Bonide MossMax
Key Points at a Glance
- Weighs 2.55 pounds
- Attaches to your garden hose
- Active ingredient is potassium soap
- Effective on outdoor mildew, mold, and moss
- Promotes healthy lawns
- Can be applied any time of year
The Details
This product is effective at killing the kinds of moss, algae, and mildew that afflict patios, outside walls, and lawns. It can be used safely on ornamental gardens or grass, as well as shingles, siding, and the hardened barks of trees.
The Bottom Line
With that said, this product shares the problem common to several of the moss remover: leaking or faulty sprayers. One user somewhat acerbically recommended use of a rain hat and raincoat while applying Bonide Mossmax. With that said, this product is reliable and has been trusted since 1926 to get the job done.
- KILLS MOSS - MossMax quickly kills lawn moss, giving your lawn grass...
- FAST ACTING-Kills actively growing moss and algae within hours.
- PROMOTES A GREEN LAWN - MossMax Lawn Granules not only kills lawn moss...
- USE ON STRUCTURAL SURFACES-Can also be used on surfaces such as roofs,...
- EASY TO APPLY - Product instantly mixes with water and should be...
Last update on 2025-04-14 / Affiliate links / Images from Amazon Product Advertising API
Conclusion
As with all chemical products, it is essential to follow the included directions for best results. Each of the six products listed above have strengths and weaknesses, but they will all deliver reasonable results within the parameters of their intended function. Some will work quickly; some will work more slowly. All can be effective when used properly. In each case, reading labels and following directions is essential for good results.
Although these products have been carefully designed to work properly, consider wearing clothing that won’t be ruined by a few bleached out spots since even the preparations that do not contain bleach can remove dye from fabric. If spraying on fabric, test an out of the way spot for colorfastness before continuing. Goggles and similar safety equipment are also a good idea when dealing with any spray product application. Should any of these splash on skin or in eyes, immediately flush with water and contact your local poison control hotline if discomfort persists.
With that said, all of these six chemical solutions can help you obtain a pristine, stain free driveway, patio, exterior wall, or roof. As always, follow directions for setting up the container for use, and for applying the chemicals directly.
Last update on 2025-04-18 / Affiliate links / Images from Amazon Product Advertising API
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