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Bonide Mossmax RTS
Bonide Mossmax RTS is an easy-to-use moss, algae, and lichen killer that enables residential lawns and other outdoor spaces the opportunity to recover and appear more beautiful due to less unwanted vegetation coverage.
10/29/25
Bonide Mossmax RTS, manufactured by Bonide, is a convenient ready-to-spray algae, moss, and lichen control solution that works within hours, resulting in lawns being able to grow more thicker and greener. Additionally, it will not stain concrete or other surfaces so decks, patios, and other surfaces can be safely treated from unwanted plant growth.
This easy-to-use hose-end bottle contains potassium salts of fatty acids, which disrupts the cellular structure of moss, algae, lichens, and more causing quick complete death. Whether you're dealing with a minor or a widespread infestation, Bonide MossMax RTS provides the tools to reclaim your space.
Bonide Mossmax RTS is the ultimate solution for controlling moss, algae, and lichens and its fast-acting formula ensures effective results while remaining safe for your grass and non-staining for surfaces. Enjoy your outdoor spaces more easily since this product does not leave behind any offensive odors.
Tools Needed
You will need a garden hose to attach it too.
How to Use
- Step 1: Connect the spray nozzle to the garden hose. Turn on the water from the faucet.
- Step 2: When you are ready to spray, turn the knob so that it points to the ON position. The spray deflector on the front of the hose-end applicator can be rotated to give a stream or fan spray. This 32 oz bottle will cover up to 500 sq. ft.
- Step 3: When treating lawns, wait 15 to 30 minutes after spraying, and then lightly rinse the treated area with water. This will reduce the likelihood of grass damage. Roofs and walls do not require rinsing.
- Step 4: When you are finished spraying or if you have to stop spraying at any time, turn the knob back to the OFF position. Turn off the water from the faucet. Unscrew the spray nozzle from the hose.
Where to Use
Bonide Mossmax RTS can be used on lawns, ornamental gardens, around and on homes, other buildings, and home greenhouses; roofs; cedar shakes and composition shingles; cedar siding; stucco; cedar, redwood and CCA treated wood decks and fences; brick, stone and concrete walkways, sidewalks and driveways; growing containers; other structural surfaces; hardened bark of trees; bark mulch; pavement; gravel; patios; asphalt; automobile exteriors; and the exteriors of motor homes and boats
When to Use
This product can be used at any time during the year. Best results are obtained with actively growing moss in the spring or fall.
Do not use on lawns when the temperature exceeds 85 degrees Fahrenheit.
During warmer weather apply late in the day. Application during cold weather may delay the appearance of moss, mold, and mildew damage.
Safety Information
Bonide Mossmax RTS is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling and applying this product.
Special Considerations
Reapplications are necessary to completely kill off unwanted vegetation. One treatment is usually not sufficient for control.
| Availability | Online |
| Restricted Use | No |
| Shipping Restrictions * = not registered** = restricted use | 32 Ounce: DC*, HI*, SD* |
| Brand | BONIDE |
| Keith's Pro Tips | "Moss thrives in moist areas, so you can improve drainage in and around your home to help prevent it." |
| Product Drawbacks | Repeat applications are necessary for complete control. |
| Target Pests | Algae, Mold, Mildew, Mosses, Lichens, and Liverworts. |
| Application Equipment | Gloves |
| Application Methods | Broadcast Spray |
| Active Ingredient | Potassium salts of fatty acids 22.11% |
| Product Type | Herbicide |
| Formulation | Ready-To-Use |
| Application Rate | This 32 oz bottle will cover up to 500 sq. ft. |
| Shelf Life | Bonide Mossmax RTS will last for 3 years when stored in a dry, clean area. |
| Yield | This 32 oz. bottle will cover up to 500 sq. ft. |
| Use Sites | Outdoors |
| Time to Kill | Bonide Mossmax RTS will show results within hours. Moss will turn brown after a few days. |
| EPA Registration # | 67702-12-4 |
| Restricted Use | No |
|---|---|
| Shipping Restrictions | DC, HI, SD |
| Availability | Online |
| Signal Word | WARNING |
| Keith's Pro Tip | "Moss thrives in moist areas, so you can improve drainage in and around your home to help prevent it." |
| Time to Kill | Bonide Mossmax RTS will show results within hours. Moss will turn brown after a few days. |
| Chemical Type | Herbicide |
| Formulation | Ready-To-Use |
| Application Methods | Broadcast Spray |
| Product Drawbacks | Repeat applications are necessary for complete control. |
| Active Ingredient | Potassium salts of fatty acids 22.11% |
| Application Equipment | Gloves |
| Mix Rate | This 32 oz bottle will cover up to 500 sq. ft. |
| Use Sites | Outdoors |
| Yield | This 32 oz. bottle will cover up to 500 sq. ft. |
| EPA Registration No. | 67702-12-4 |
| Shelf Life | Bonide Mossmax RTS will last for 3 years when stored in a dry, clean area. |
| Children or pets? | No |
| Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.




