How Much Lawn Fertiliser
The Role Of Lawn Fertilisers
Lawn fertilisers are an essential element in maintaining the health and well being of our lawns. To maximise results and reduce wastage or damage to the environment, it's important they are used correctly in our lawn care.
So how much lawn fertiliser should we apply to our lawns?
All lawn fertilisers are different, and are made with different quality ingredients, by different manufacturers, in different concentrations and different mixtures of nutrients.
For these reasons, it is very important to follow the manufacturers instructions, to ensure our lawn receives the nutrients that the lawn fertiliser we are using - was made to deliver for best possible results.
Over Application Of Lawn Fertilisers
So with this understanding, it is important not to exceed the recommended application rate of the lawn fertiliser being used. The manufacturers know their products, they have done their testing, and they know exactly the right amounts of fertiliser lawns require when using their particular fertiliser brand.
Over application can also waste the excess fertiliser being applied, because the lawn often cannot use the excess nutrients. These nutrients simply end up in our storm water drains, in our rivers and waterways, and can possibly leech into the water table causing environmental damage.
Some people can mistakenly believe that a super application will green up their lawn even more and even faster, this is not exactly true, it is more so very poor lawn care practice and the opposite effect can often occur. When too many nutrients are applied to the lawn at once, the nutrient receptacles in the plant can actually shut down to avoid damage from uptaking these excess nutrients.
Lawn Fertiliser - Little and Often
The golden rule for lawn fertilising is to apply it little and often, small doses applied frequently.
When we do this, the lawn, or any other plant is exposed to a constant nutrient supply at safe levels throughout its life.
One way to do this is applying lawn fertilisers at the manufacturers guidelines for application rates every about two months. Or as otherwise directed by that manufacturer. Also whether the fertiliser is a standard granular fertiliser, or if it’s a slow release fertiliser, this too will have bearing on how often to fertilise lawns.
The second method is to reduce the manufacturers guidelines and apply more frequently. For example, if the manufacturer recommends 50 grams per square meter every two months, we can reduce that amount to 15-20 grams per square metre, applied once a month, reducing our lawn fertiliser usage even further, and maintaining a more continuous nutrient supply. When using this method in our lawn care, it is important to lower the application amounts below manufacturers recommendations. So 50 gsm per two months, does NOT equate to 25 gsm per one month. THE DOSAGE SHOULD BE LOWERED FURTHER.