Got Moss and Algae in your lawn? Wet and Forget it!

Author: Stefan Palm   Date Posted: 31 July 2023 

During a scout around my block on the weekend, I not only found moss in my Santa Ana lawn out the front but also on the pathways, the retainer walls, and even in the small piece of synthetic grass I have in the back yard.  There is a simple solution!

While it's not as easy to see in the lawn, it's definitely not a good look when it gets out of control on other surfaces around the home, especially in the more shady areas. With the high frequency of rain we've had in recent months, conditions for moss and algae to thrive are higher than in previous years. 

There is a solution! It's called Wet and Forget, and it knocks out Moss and Algae not only in lawns but just about every other surface too!

Wet & Forget is the ultimate outdoor moss, mould, lichen and algae remover that is safe to use on any exterior surface, including lawns!  It kills problem spores and helps stop the premature regrowth of unwanted biological growth.

Wet & Forget concentrate:

  • Is non-caustic, non-acidic and bleach free.
  • Is an easy, do-it-yourself application.
  • Requires no scrubbing or water blasting.
  • Is biodegradable.
  • Dilutes into your garden sprayer.
  • 5L bottle covers a minimum of 100sq metres (it makes 30L of product).
  • Has an unlimited shelf life both in its concentrate form and when made up in a garden sprayer.
  • Kills problem spores at the source and helps prevent premature regrowth.

How it works

Wet & Forget has a unique combination of biodegradable selective fungicides to target moss, mould, lichen, algae, and general biological growth. When diluted with water and applied to a dry surface, it immediately attacks the growth. These fungicides work in conjunction with a carefully selected range of surfactants to help loosen and lift biological growth, and then Mother Nature takes over. The weathering process gently removes the decomposing growth over time without damaging the surface it has infested.

Wet & Forget is non-systemic; therefore, if there is runoff into the garden beds, it will not be absorbed into the root system and will not damage plants at all. Wet & Forget won't affect plants unless you accidentally spray directly onto them, which can cause spot burning of the leaves.  

Application for treating moss in lawns

Firstly, lightly water the lawn but do not saturate it.  Do this late in the day when the sun is low so that evaporation is kept to a minimum.  The dilution rate is 1 part Wet & Forget to 7 parts water.   You may have to give it a couple of goes until you have it under control.  At worst, you may get slight burning on the grass; however, it will recover quickly.  Once the moss is dead and decomposed, give your lawn a good fertilise ready for new growth.

Safe around Pets

Once the Wet & Forget has completely dried, it is safe for pets to walk on the surface area.  If your pet accidentally walks or sits in the product, immediately wash off the product with fresh water so they do not ingest the Wet & Forget.

Which type to buy

There are two types of Wet and Forget. One is pink, the other is blue. If you intend to spray Wet and Forget onto your lawn, only use the blue concentrate, and ensure that you dilute it according to the instructions on the pack. 


To find out more about Wet and Forget or to purchase some, click here.




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