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BONIDE

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.

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Bonide Mossmax RTS Product Page
Min : 27.31 - Max : 27.31
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Price as of
10/29/25
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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.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions
* = not registered** = restricted use
32 Ounce: DC*, HI*, SD*
BrandBONIDE
Keith's Pro Tips"Moss thrives in moist areas, so you can improve drainage in and around your home to help prevent it."
Product DrawbacksRepeat applications are necessary for complete control.
Target PestsAlgae, Mold, Mildew, Mosses, Lichens, and Liverworts.
Application EquipmentGloves
Application MethodsBroadcast Spray
Active IngredientPotassium salts of fatty acids 22.11%
Product TypeHerbicide
FormulationReady-To-Use
Application RateThis 32 oz bottle will cover up to 500 sq. ft.
Shelf LifeBonide Mossmax RTS will last for 3 years when stored in a dry, clean area.
YieldThis 32 oz. bottle will cover up to 500 sq. ft.
Use SitesOutdoors
Time to KillBonide Mossmax RTS will show results within hours. Moss will turn brown after a few days.
EPA Registration #67702-12-4
More Information
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.

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