Scotts MossEx 3-in-1 32 -fl oz Moss control
Item #530244 |
Model #3300210
Scotts MossEx 3-in-1 Ready-Spray is a fast way to control mosses, algae, linchens and liverworts
This liquid treatment is non-staining and kills moss within hours
Apply this pesticide with a hose-end sprayer at any time during the year
This item is no longer sold on Lowes.com
Scotts MossEx 3-in-1 Ready-Spray is a fast way to control mosses, algae, linchens and liverworts
This liquid treatment is non-staining and kills moss within hours
Apply this pesticide with a hose-end sprayer at any time during the year
For use on lawns, ornamental gardens, around homes and on roofs, patios, decks, sidewalks, and more (as listed)
One 32 fl oz bottle of Scotts® MossEx™ 3-in-1 Ready-Spray® treats up to 500 sq ft
General | |||
|---|---|---|---|
Series Name | MossEx 3-in-1 | Concentrated | No |
Type | Moss control | Area of Use | Lawn |
Unit of Measure Quantity | 32 | Pre-Emergent | No |
Unit of Measure | Fluid ounce(s) | Maximum Duration of Effectiveness (Days) | 30 |
Application Method | Hose end sprayer | Active Ingredient | Ferrous sulphate monohydrate |
Primary Usage | Moss and algae killer | ||
Dimensions | |||
|---|---|---|---|
Maximum Coverage Area (Sq. Feet) | 500 | Size | 32 Ounce(s) |
Features | |||
|---|---|---|---|
Contains Glyphosate | No | Recommended for Crabgrass | No |
Lowe's Exclusive | No | Recommended for Dandelions | No |
Natural | No | Recommended for Mildew | No |
Odorless | No | Recommended for Mold | No |
Organic | No | Recommended for Moss | Yes |
Rain Resistant | Yes | Recommended for Nutsedge | No |
Ready to Use | No | Recommended for Poison Ivy | No |
Recommended for Algae | No | Recommended for Poison Oak | No |
Recommended for Brush | No | Recommended for Tree Stumps | No |
Recommended for Chickweed | No | Recommended for Vines | No |
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | OMRI Listed | No |
EPA Registration Number | 538-223 | ||
Warranty | |||
|---|---|---|---|
Warranty | None | ||
Compatibility | |||
|---|---|---|---|
For Use in Flower Beds | No | For Use Around Trees | Yes |
For Use in Vegetable Gardens | No | For Use Along Fences | Yes |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 10161800 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers are divided on effectiveness, with most reporting strong results on accessible surfaces like brick, rocks, and concrete where moss turned brown and dried within days. Many praise the no-mix formula and easy thumb-trigger application. However, roughly three in ten express frustration with the short spray nozzle that cannot reach roof sections from ground level, forcing unsafe ladder use or leaving upper areas untreated. Some report no visible results or hose connection issues. Despite roof limitations, most customers who applied it to ground-level surfaces find it convenient and worthwhile.
Customer review summary generated by AI, including incentivized reviews.Didn't kill the moss.
Applied to moss on my driveway and it did not kill the moss.
Easy to use, not great value considering qty
Easy to use, natural product not harsh chemical, works with normal garden hose
Good product from Scotts... Poor p1ackaging
When i opened the box the 2 hand-held mossex products were in a closed plastic bag. The bag was filled with spilled product about 1/2 full. How can I use these products with awful packaging?
We're sorry to read about your experience with Scotts Mossex 3-in-1 Ready-Spray and appreciate your feedback. We would suggest reaching out to yo...

Range is very limited.
The spray comes out in a fan formation. Couldn’t reach any portion of the house roof. Was able to do the edge of the roof over the garage but could not reach any of the house roof. Wound up using it on the walkway & stone wall.
From ScottsMiracle-Gro
Hello Kate. We are concerned to hear this. We would like the opportunity to gather some additional information and offer assistance. Please reach out ...
It didn't work for me.
After a couple of days, I still didn't see any change in my roof moss. I went back & bought a different brand I used yesterday; I already see a change.
We're sorry to read about your disappointment with Scotts MossEx 3-in-1 and appreciate your feedback.
Several factors may affect the p...

Does Not Remove Green Algae on Wood Deck
This product seemed too good to be true: no staining, not harmful to plants, doesn't have to be rinsed, works on wood decks etc. At least for me it does not get the green algae off my wood deck. Instructions on the bottle says works on cedar, redwood, treated decks. Application was done on Sat, and my picture is taken on Tues shows no improvement.
We're sorry to read about your situation with Scotts MossEx 3-in-1 32-fl oz Moss Control and appreciate your feedback. Make sure to scrub thoroug...

Not For Roofs !
False claims regarding roof application. Attempting to remove moss from small one story barn roof. Fan produced by nozzle which reaches about 24 inches and from ground at arms length, reaches only the edge of the roof, where the moss is NOT located. “For Roofs” Yeah Right ! The nozzle is TERRIBLE !!!
From ScottsMiracle-Gro
We're sorry to read about your disappointment with Scotts Mossex 3-in-1 Ready-Spray and appreciate your feedback. We will share this feedback appropri...
The spray nozzle is weak and not for a roof.
The spray nozzle sprays in a short fan spray and will not reach a roof. I used a ladder to get to the roof level and did the best I could. The spray showered me with the product. I ripped off the nozzle in an attempt to get a better stream and it worked somewhat better. I do not recommend this product unless you can walk the roof peak while spraying down but then you’re walking on a wet roof. As to the effectiveness of the product…time will tell but the spray nozzle design is not designed to t...
From ScottsMiracle-Gro
We're sorry to read about your disappointment with Scotts MossEX Ready-Spray and appreciate your feedback. It should spray approximately 12 ft. if wa...
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We're sorry to hear you're not thrilled with Scotts Mossex 3-in-1 Ready-Spray, and we appreciate you letting us know.
If it rained...