Hi, this is Bish. A healthy lawn makes such a difference to how a backyard feels and looks, yet it’s easy to get it wrong if you’re not sure what you’re dealing with. Whether you’ve just moved in, inherited an overgrown jungle, or you’re simply trying to keep your existing lawn looking decent through the Northern Rivers’ changeable seasons, here’s the no-nonsense primer I wish I’d had years ago.
First Things First: Know Your Grass
The Northern Rivers is classic subtropical territory, so warm-season grasses dominate. The most common types you’ll see are:
- Buffalo (especially soft-leaf varieties like Sir Walter, Sapphire, or Palmetto) — Very popular here for good reason. Soft underfoot, handles shade well, and copes with our humidity better than most.
- Kikuyu — Extremely common, fast-growing, tough, and quick to recover. It loves the rain and warmth but can become invasive if you don’t keep the edges in check.
- Couch — Fine texture and great wear tolerance, but needs plenty of sun and more attention in our humid conditions.
- Zoysia — Dense, slow-growing, and very drought-tolerant once established. Excellent for lower-maintenance lawns.
If you’re unsure what you’ve got, pull a small clump and take it to your local nursery (or send me a photo) — knowing your grass type changes everything about how you care for it.
Mowing Heights Matter More Than You Think
Cutting too low is one of the quickest ways to stress your lawn in our climate. It invites weeds, lets the soil dry out faster, and makes the grass more susceptible to fungal issues in our humid summers.
General guide for Northern Rivers conditions:
- Buffalo — 30–50 mm (aim for around 40 mm)
- Kikuyu — 35–60 mm
- Zoysia — 20–40 mm
- Couch — 20–40 mm
Golden rule: Never remove more than one-third of the leaf blade in a single mow. If your lawn has got really long after rain or a holiday, raise the mower height and take it down gradually over two or three cuts.
Seasonal Lawn Care in the Northern Rivers
Our subtropical climate means the grass grows for most of the year, but it still has its rhythms.
- Spring (Sep–Nov): Growth really kicks in. Mow more frequently and this is the best time for fertilising, aerating, and repairing bare patches.
- Summer (Dec–Feb): Peak growing season. You’ll likely be mowing every 5–8 days during warm, wet periods. Raise the cutting height slightly during heatwaves or dry spells to shade the soil and reduce water loss.
- Autumn (Mar–May): Still plenty of growth early on, then it starts to ease. A good time to fertilise with a slow-release product to strengthen the grass before winter.
- Winter (Jun–Aug): Growth slows but rarely stops completely. You might only need to mow every 3–4 weeks just to keep it tidy. This is also a great time to dethatch and aerate.
My Hard-Won Tips for the Northern Rivers
- Keep mower blades sharp — blunt blades tear the grass and create entry points for disease in our humid conditions.
- Leave the clippings on the lawn (grasscycling) — they return nitrogen and act as a natural mulch. (Caveat: Excessively long clippings can smoother a lawn. Longer clippings should be removed. I have done a separate post on mulching grass in place versus removing it. )
- Don’t mow when the grass is wet — it clumps badly and spreads fungal spores.
- If your lawn looks tired, sometimes the kindest thing is to raise the mower height and let it recover.
A great lawn here doesn’t need to be bowling-green perfect. It just needs consistency and a bit of understanding of our local subtropical conditions.
What sort of grass are you working with in your Northern Rivers backyard? Are you battling kikuyu runners, trying to keep buffalo looking soft, or dealing with shade and humidity challenges? Drop a comment below — I’ve probably been through it and might have a tip or two that actually works.
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