Spring time fertlilising

Author: Stefan Palm   Date Posted: 13 October 2021 

It's been a cool start to the Spring, but with some warmer weather coming next week, now is an ideal time to fertilise your lawn.

By fertilising your lawn in Spring, you give it all the nutrients it will need to rise out of winter dormancy and then get started for the season. With the increase in air temperature and while there is still rain around, your lawn will jump out of the ground.

Regardless of which variety of lawn you have, the best time to apply Spring time fertiliser in South Australia is typically mid-October. This gives the lawn enough time to use the stored nutrient it carried over from Autumn. If you fertilised your lawn in Autumn, the lawn would have most likely used some of that and kept a bit stored in a crystallised state for it to draw on in the early part of Spring. Holding off till October gives your lawn a chance to use that up before you apply more.

When it comes to Spring fertilising, I would recommend a complete, mineral fertiliser such as Paul Munns Greenkeper rather than an organic type. Organic fertilisers are good and certainly have their place but simply don’t have enough available nutrients to deliver what the lawn needs during Spring. Springtime fertilisers should include Nitrogen (N), phosphorous (P), potassium (K) and trace elements like iron, zinc, copper, boron, molybdenum and manganese. On the back of every fertiliser bag, there is a small table showing you what’s in the fertiliser and how much of each element. This is called the fertiliser analysis. An ideal analysis for a lawn during Spring looks like this:

Nitrogen (N): Around 12%

Nitrogen is vital for a healthy lawn. Your Lawn won’t grow without it. Too little available nitrogen leads to slow growth, increased chance of some diseases, yellowing of blades and thin turf, resulting in increased weed pressure.

Phosphorous (P): Around 2%

Phosphorous assists in converting the sun’s energy and other elements, such as nitrogen, into usable food for lawns. Phosphorous makes lawns more vigorous.

Potassium (K): Around 6%

Potassium encourages environmental hardiness, good water uptake and strong cell and root formation that helps grass survive the summer temperatures to come.

Trace elements including around 1-2% iron (Fe)

A fertiliser with an analysis similar to this should be applied at no more than 1kg per 10 square metres. We recommend Paul Munns Greenkeeper lawn fertiliser – It has been specifically formulated for springtime fertilising and contains the right balance of nutrients to get your lawn looking good!

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