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Winter Grass

Posted on June 2, 2022 by Greg Pelka

Winter Grass is an easy weed to identify due to it producing triangular shaped seed heads as it grows. Unfortunately, these seed heads are a sign that it has already started spreading for next season making it one of the more frustrating weeds to remove. In this article we will cover what winter grass is and how you can stop it from spreading throughout your lawn.

What is winter grass?

Winter grass is a low growing weed with soft, drooping green leaves. You will typically see this weed growing in tufts with white seeds when the soil temperature drops to 16 – 17 degrees. When the soil temperatures drop below this the winter grass seeds that are in the soil will start to germinate and grow. For most areas, this will be around mid to late Autumn.

How does winter grass spread?

Winter grass produces triangular seed heads as it continues to grow. These seeds are often spread across the lawn by wind, birds, and underfoot with each seed growing into a new winter grass weed.

Image of Winter Grass
Winter Grass

How to stop winter grass?

Prevention is better than cure, this is when pre-emergent herbicides like Oxafert come in. Pre-emergents are designed to target seasonal weed seeds and stop them from germinating before their weeds starts to appear. It is best to apply a pre-emergent in mid to late Autumn, or when the temperatures start to drop in your location.

You can also apply a pre-emergent in early to mid Spring, or when the temperatures are starting to rise to help stop seasonal summer weeds, like Summer Grass and Crabgrass/Crowsfoot.

How do pre-emergents work?

Pre-emergents work by forming a barrier at the soil level which affects germination and prevents any new weeds from growing and spreading throughout your lawn for up to 12 weeks.

Whilst pre-emergents will only stop weeds during germination they won’t stop any existing weeds that are already in the lawn. If you have weeds that are already growing in your lawn it is best to apply a post-emergent herbicide for control.

How pre-emergent work

How to apply Oxafert?

When applying Oxafert, spread out the granules evenly by using a sweeping hand motion or apply with a fertiliser spreader for even coverage. Oxafert is best applied to dry foliage and watered in immediately after application.

Oxafert Pre-emergent herbicide and fertiliser spreader

Winter grass in your lawn already?

If your lawn has already been infiltrated by winter grass, it is best to use a selective post-emergent herbicide. We strongly advise consulting your local turf supplier on which post-emergent herbicide will best suit your lawn, as some are unsafe to use on certain turf types.

Rosemount Turf

For more information about winter grass or whether you would like a quote on new turf please don’t hesitate to contact our friendly staff on 07 5548 6398 or alternatively via email using our online contact form.


Lawn Solutions Australia
Pre-Emergents | Winter Grass
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Greg Pelka

We are a local, Sunshine Coast turf grass company with a committed team to providing a quality lawn. Like any small business it's the people who make it great. Above are the friendly staff you'll meet and deal with when ordering turf from Rosemount Turf.

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