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How To Kill Moss and Algae

The safe and easy way to free your Garden, Back Yard, Deck, Driveway, Tennis Court and Patio from Moss and Algae. Sodium percarbonate is an easy to apply granule which kills moss and stops it spreading too! 

How to get rid of Moss with Sodium Percarbonate

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Why does Sodium Percarbonate work so well as a moss killer?

Once sodium percarbonate comes into contact with water, it causes a reaction which produces copious amounts of oxygen! This breaks down the very fine single roots called rhizoids, cutting off the plant’s support system.

How does it prevent Moss from returning?

In order to reproduce, Moss produces spores, these single celled organisms break off and are spread by wind or water. Sodium Percarbonate is brilliant at killing single celled organisms.

Why does it not kill other plants?

Sodium Percarbonate only affects single celled structures like bacteria, fungi and algae. Plants are multicelled.

Is it safe?

Yes. Sodium percarbonate breaks down into oxygen and water. In fact sodium percarbonate is the main ingredient in Vanish stain remover.  Keep away from the eyes remember it can be an irritant to the skin.

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9 Reasons you should use Sodium Percarbonate as a Moss Killer.

  1. Non Staining.
  2. It’s Eco Friendly.
  3. No impact on the environment.
  4. 100% No Odour.
  5. If it doesn’t kill it, it’s not moss!
  6. Easy to apply granule.
  7. No waste. You can even use it in you laundry wash!
  8. Prevents moss regrowth.
  9. Safe to use.

How to kill Moss and Algae on Patios, Decks and other Hard Surfaces with Sodium Percarbonate.

Wearing gloves, simply sprinkle sodium percarbonate by hand with 50 grams per square meter.

This method is best applied when rain is forecast.


Mix 30 grams of sodium percarbonate with 1 litre  of warm water mix well and spray the moss or hard surface until soaked. If cleaning a deck you may want to brush the solution with a suitable deck brush.

Whichever method you choose, once you have applied the sodium percarbonate for killing moss, try and leave it alone, go away and forget about it, it will die!

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