Worm Castings

I've got worms!

No, we are not looking for worms to audition for a role in upcoming videos, more we are here to get a better understanding of these slimy little critters.

Having earthworms active in our lawns is nothing more than a great sign, why? A population of earthworms is a clear sign that you have good soil health made up of many types of organic matter.

The break down...

A healthy worm population is more beneficial for your lawn than not and they do their best work below the surface of your lawn and out of sight. Whilst working away below ground worms offer many free services.

Not only are they protecting themselves from becoming a tasty treat to our feathered friends, they offer natural aeration as they travel. This underground aeration is all beneficial, reducing compaction and allowing water and oxygen to move more freely through your profile via the small galleries they create.

Along with aeration, worms also assist in the breaking down of thatch as this becomes another form of food source for them. Through the decomposition of organic matter such as thatch, earthworms will assist in providing a usable form of nitrogen that is available in the root-zone for your turfgrass.


The downside to earthworms is castings. For those with a beautifully manicured lawn these small mud balls can be unsightly and annoying, over time these castings can also alter your profile levels creating an uneven surface. Little do people know these little mud balls are packed full of goodness, these nutrient packed mud balls are leftovers from the worm’s digestive system and are very beneficial to your lawn.


Now is not the time to reach for an insecticide, as we do not recommend trying to eliminate worms from your lawn as the pros far out way the cons. If castings are present on your lawn allow them to dry, then using a rake or broom simply sweep them back into your profile.

Why my lawn and not others?

Another reason for castings in your lawn can be due to a waterlogged soil profile, this will force the worms to rise and promote their castings on the surface. Be mindful not to over water and ensure your lawn has adequate drainage. By doing this you will help keep these fascinating creatures below ground.

Worm on.

Earthworms are not a pest as we know it, more a sign from nature. Although the mud balls can be frustrating, it is a time to reflect and be thankful for all the benefits that earthworms provide to our lawn and soil profile.