Most Sydney lawns are warm-season grasses — buffalo, couch and kikuyu. Once soil temperatures drop below around 14°C, these grasses slow right down and go semi-dormant. They lose a bit of colour, stop growing fast, and need far less from you. That doesn’t mean ignore them — a few simple habits keep your lawn healthy and ready to bounce back in spring.
Your lawn keeps growing slowly through winter, so it still needs the occasional cut — often only once every 3–4 weeks, sometimes less. The key is height. Mowing too short in winter scalps the lawn, exposes the soil and lets winter weeds move in. Raise the mower and leave the grass a little longer than in summer:
While your lawn rests, cool-season weeds like bindii and clover get busy — and bindii is the one that produces those painful prickles in spring. Winter is the time to deal with them, before they set seed. Spot-weeding now saves a lot of grief later; if the lawn’s been overrun, our weeding team can clear it out.
If your lawn has thinned out or never really recovered, the cooler months are a good time to plan a fresh one so it’s established before summer. We supply and lay quality turf across Sydney — see our turf laying service.
Sydney lawns aren’t all the same, and winter treats each type differently. Buffalo handles shade and cold best — keep it a touch longer (50–70mm) and it will hold its colour through most of winter. Couch goes properly dormant and browns off; that’s normal, so resist the urge to scalp it or force it back with fertiliser. Kikuyu keeps ticking along in Sydney’s mild winters and still needs a regular mow to stop it getting away on you. Whatever the type, keep leaves raked off the lawn — a wet leaf blanket through winter is how you end up with dead patches and fungus in spring.
The best spring lawns are planned in winter. Note the areas that stayed soggy or shaded, because they’ll need aeration or a top-dress come September. If the lawn is more weed than grass, winter is the time to knock the weeds down so you’re renovating into a clean slate. And if you’re planning to book help for the spring rush — aeration, top-dressing, feeding, or a full renovation — get in early; the calendar fills fast once the weather warms. Curious what it costs? Our Sydney gardener cost guide has real numbers.
If a once-a-month winter mow at the right height isn’t something you want to think about, our lawn mowing team can keep it tidy, or bundle it into a fixed-price gardening package. Get in touch for a quick quote.
Should I mow my lawn in winter in Sydney?
Yes, but less often — usually every 3–4 weeks — and at a higher height. Mowing too short in winter scalps the lawn and invites weeds.
Should I fertilise my lawn in winter?
No. Buffalo, couch and kikuyu are dormant in winter and can’t absorb fertiliser, so it’s wasted. Fertilise in spring instead.
Why is my lawn going brown in winter?
Warm-season grasses naturally lose colour and go semi-dormant when soil temperatures drop. It’s normal — they green back up as the weather warms in spring.
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