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Robot mowers for buffalo, couch and kikuyu lawns
Robot mowers suit Australian warm-season grasses well, as long as the mower cuts high enough for your turf.
By Domestic Robot · Updated 28 September 2026
Quick answer
Buffalo and zoysia like 2–5 cm in sun and 5–7 cm in shade; couch sits lower at 2–4 cm; kikuyu 2.5–5 cm (myhomeTURF). Most robot mowers cut between 2 and 6 cm, so check the maximum height if you have shady buffalo. The ECOVACS Goat O600 (3–8 cm) and Mammotion YUKA 2000 (3–10 cm) reach the highest.
Cutting heights for Australian grasses
| Grass | Sun | Shade |
|---|---|---|
| Buffalo (Sapphire, Palmetto) | 2–5 cm | 5–7 cm |
| Buffalo (Prestige) | 3.5–4.5 cm | 5–6 cm |
| Zoysia (Empire, Nara, Augusta) | 2–5 cm | 5–7 cm |
| Kikuyu (Kenda) | 2.5–5 cm | — |
| Couch (OZTUFF, Stadium) | 2–4 cm | — |
Heights from myhomeTURF. Raise the height about 1 cm in winter.
Why robots suit Aussie turf
The turf rule is to never remove more than a third of the leaf in one cut. Robot mowers trim a few millimetres every day or two, so they never scalp, and the fine clippings drop back as mulch. Runner grasses like buffalo, couch and kikuyu respond with a denser lawn.
Cutting range of our picks
| Mower | Cutting height | Suits |
|---|---|---|
| ECOVACS Goat O600 RTK | 3–8 cm | Shady buffalo and zoysia |
| Mammotion YUKA 2000 | 3–10 cm | Long buffalo, big lawns |
| Mammotion LUBA 3 AWD 5000 | 2.5–7 cm | Most grasses, acreage |
| Mammotion LUBA mini 2 AWD 1500 | 2–6.5 cm | Couch, kikuyu, sunny buffalo |
| Segway Navimow i108A | 2–6 cm | Couch, kikuyu, sunny buffalo |
Heights from Amazon AU listings and Navimow AU, checked 28 September 2026.
Tips for thick runner grasses
- Start high, then lower. Let the robot cut an overgrown lawn in steps over a couple of weeks.
- Keep blades sharp. Blunt blades tear buffalo and leave brown tips.
- Edge runners. Couch and kikuyu creep into garden beds; set no-go zones and edge by hand now and then.
- Winter: raise the height and cut the schedule back as growth slows.
Common questions
Can a robot mower cut buffalo grass?
Yes. Set it at 2–5 cm in sun or 5–7 cm in shade, and let it mow little and often. Check the mower's maximum height if your buffalo is in shade.
Are robot mowers good for kikuyu?
Yes. Kikuyu grows fast, and daily light trims keep it dense and stop it running wild. Aim for 2.5–5 cm.
What height should I mow couch grass?
About 2–4 cm. Most robot mowers reach this easily.
Will a robot mower scalp my lawn?
Rarely, because it removes only a few millimetres per pass. Scalping usually happens on bumpy ground, so level any high spots first.
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