How to use recycled coffee grounds as a fertiliser

July 15, 2018

How to use coffee grounds as a fertiliser

Having a great looking lawn depends on ensuring your grass gets the nutrients and water they need to develop strong root systems.  This helps them withstand drought and battle insects and fungal infestations. But sometimes, getting all the nutrients your lawn needs can be an expensive endeavor. 

If you’re lucky enough to live near a farm animals (and you have the space to compost manure without drawing the wrath of every neighbor within a block radius), well done you.  However, for most of us, we need to find other ways of keeping our lawns green and healthy.

This is where coffee grounds come in...

Given our current coffee culture, most of us have access to used coffee grounds which will not only feeds our grass, but will smell great while doing it. (Ask you local coffee shop of cafe for their daily grounds if you don't have your own). Coffee grounds can provide your lawn and your other plants with much-needed nutrients and other important benefits. In fact, coffee grounds;

  • are a good source of compostable nitrogen, which is vital for plant health
  • are close to pH neutral, which means they won’t burn your grass plants like some other forms of natural nitrogen
  • repel slugs and snails without the need for poisonous pesticides
  • improve the structure of soil, especially in heavy or clay soils, for better, deeper root development

It's so easy;

  • Make sure your grounds have no paper or other waste mixed in
  • Apply the grounds directly to the soil
  • Mix them in well with a hoe or shovel 

A note about nitrogen;

Nitorgen is used by microorganisms which break down the garden soil to make nutrients more available for plant (or lawn) use.  Nitrogen is also needed for plant (or lawn) health.  If you are applying coffee to your soil, consider applying some extra nitrogen at the same time to ensure your plants and your helpful microorganisms aren't competing for the same source of nitrogen.


You can store your extra coffee grounds in a plastic trash can but, be aware, wet grounds do go moldy, so be prepared for this.