0800 88 11 23
Money Back Guarantee!
Freight Only $5 Delivered Anywhere in NZ!!

Moss Killer – Kill Moss in Lawns

Used by Landscape Gardeners Throughout New Zealand to Kill Moss in Lawns

Time to Kill Moss in lawns? Moss needs moisture to grow but can survive periods of drought. It is usually associated with poor drainage, shade, low nutrient level and/or acidic soil. It is low growing and forms a spongy mat.

Since moss thrives in damp soil, it encroaches on areas that have poor drainage and where the soil is compacted. It can be found in almost any damp and shady area of your garden including lawns, garden beds, paths and driveways.

Why Moss Grows in Lawns

The first thing to understand before taking steps for killing moss is that Moss is an opportunistic plant. It will not push out grass or kill plants to take hold. It will simply move into a spot where nothing is growing. Moss in your lawn is normally an indicator that something deeper is wrong with your lawn, and the moss is simply taking advantage of the empty dirt that dead grass left behind. So really, the first step to truly ridding your lawn of moss is to first treat the deeper issue with your lawn.

First, check for the following reasons why your grass may be dying, as these reasons not only kill the grass but create an ideal environment for moss.

Compacted soil – soil compaction kills grass roots and creates a smooth area for moss to hold onto.

Poor drainage – soil that is continually damp or even swampy will suffocate grass roots and also provides a damp environment that Moss loves.

Low pH – Grass needs a moderate or slightly alkaline soil to thrive. If your soil has a low pH and is high in acid, it will kill the grass. Coincidentally, moss thrives in high acid soil.

Lack of sunlight – Shade is notorious for making it difficult for grass to grow. It is also the preferred light for moss.


It is important to address the causes of your problem to prevent moss regrowth:

  1. Cut back any plants shading the affected area.
  2. Improve drainage in the area, this can be done by aerating the ground with a spike or fork.
  3. If possible, keep off lawn when wet to prevent soil compaction.
  4. Moss growth can be a sign of poor nutrient levels in the soil and high acidity.

How to Kill Moss In Lawns

Cut the lawn one day before treatment then spray with Spik and Span. Best to apply in Autumn or early winter before moss becomes too established and dense, though the product can be used throughout the year.

Once sprayed, avoid cutting your lawn for as long as possible to allow the product to take effect. When moss has died, rake out of lawn and reseed lawn if necessary.

Try our Moss Killer for green healthy grass.

A green lawn is a goal for many homeowners, but if the green comes from moss, it may be time to give your grass a better chance to grow and kill the moss in your lawn.

In your garden sprayer, mix 1 part Moss and Mould Killer to 20 parts water, eg: 500ml Moss and Mould Killer to 10L of water.

Spray the effected areas of the lawn liberally with this diluted solution.

The Moss and Mould Killer will not affect the lawn or any surrounding garden plants.

The moss in the lawn will start to turn yellow in 2-3 days, and is usually dead in 2-3 weeks. Lawn, which was suppressed by the moss, will then regenerate for a fuller and lusher lawn.

It is recommended to top-dress your lawn with garden lime, once moss is dead, which acts as a soil sweetener and leads to a lusher lawn.

If you have pets and young children, allow the Moss and Mould Killer to dry first before allowing them onto the lawn.

Moss Killer for Lawn

Kills the Moss not your Lawn!

Roof Treatment

"Hi Henry, Your product has quite frankly outdone anything I have previously used. Your email has prompted me to have another closer look on my roof just now and since I last applied the Moss and Lichen Slayer late May last year I can’t find any noticeable patches. That's the first time I have achieved that result in that time period. I still have another container to get through but it’s probably not enough to finish the roof again though. I should look at grabbing some more really. Regards"

Keith Forlong

Home Maintenance Company

"Just a quick note to let you know I am really pleased with your moss and mould slayer product. I have used for over 6 years and I think its the best product on the market. I dont want to have to go back to an unhappy client so I will stick with what I know gets results !! Thanks"

Pegasus Home Maintenance

Saved us time and money

"We are owners of a motel complex and we have used various products over the past 15 years. We discovered Spik and Span Moss and Mould killer about 5 years ago and we would not change to anything else.We got faster kill rates and slower regrowth.

It costs us nearly half what were paying on other brands."

Taupo, NZ

Nothing has been far more superior than Spik and Span Moss Kill

"I have used Spik and Span Moss Kill on my south side of my house as it is so damp and the moisture is just creating a moss like substance. I don't know much about it really. I used a 5 Litre pack and it cleaned it up within a week. I have used other well advertised products and nothing has been far more superior than Spik Moss Kill. I would certainly recommend it to anyone. Cheers Spik and Span NZ"

Bryan Nigel
Upper Hutt, NZ

Spik and Span is a beauty

"Spik and Span orange cleaner is a beauty. It cleans so well and a good test recently was the stinky tilt a hood filter that was full of oil and grease. Using Spik and Span at 10-1 with water, allowing it soak in and then hosing it off afterwards the oil and grease broke down easily and left the filter looking like brand new. It also left a fresh orange smell in the filter that has lasted for days now."

Auckland, NZ

Moss & Mould Killer on my Pavers

"I used Spik and Span Moss and Mould Killer on my pavers. I am most impressed. 1 week after spraying it is already showing distinct signs of working. I have also sprayed moss in my lawn. Moss has gone a yellow colour and lawn is still green. Good bye to moss and mould forever. So pleased to have found this product."

Timaru, NZ

Fantastic Result

"Just ordering some more Moss and lichen removal product and wished to tell how pleased I am with your product. I have tried nearly everything under the sun to get rid of the lichen on my driveway. We got rid of it within 4 months.We are now going to spray our roof and hope to get a similar result. Fingers crossed."

Rotorua, NZ

I used Spik and Spans Moss and Mould Killer last week

"I used Spik and Spans Moss and Mould Killer last week and sprayed it on everything from my paths to the deck and everything else in reach. Apart from the bits I missed the green gunk has gone, no rain either till tonight , just heavy frosts! I was told it may take a couple of weeks but it has gone in a few days. I am delighted to say the least and have ordered more! I also have used Spik and Span household concentrate cleaner. It cleaned everything it touched!! From the bathroom , to bench tops , my stainless jug, and rubbish bin etc. I am really impressed with Spik and Span's service that I received and would certainly recommend these products to everyone. Cheers Spik and Span."

Dunedin, NZ

Awesome for all areas

"I use Spik and Span for everything around the house. We use it on our drive and paving areas as well as around the pool area which can get slippery. We spray once a year every year and always look forward to the results. Great price and great product guys. Happy for you to use my reference."

Auckland, NZ