Here’s the good news American lawn articles can’t give you: almost every Australian lawn is a running grass. Buffalo, couch, kikuyu and zoysia all spread sideways by runners, which means a bare patch isn’t a hole you must fill with seed — it’s a gap the surrounding lawn will close by itself, if you fix what killed the patch and give the runners a fast surface to travel.

Step zero: fix the cause or repeat the repair

A patch died for a reason — work through the diagnosis first. Repair over unresolved grubs, dry patch or deep shade and you’ll be back here next season staring at the same spot. Traffic patches (the dog’s cricket pitch, the path to the clothesline) need the traffic managed — stepping stones beat replanting annually.

The repair method (spring to early autumn)

Do this while the lawn is actively growing — spring is ideal; winter repairs mostly just sit there.

1. Clear the patch. Rake out dead thatch and any weeds down to soil. Runners root into soil, not into a mat of dead material.
2. Loosen and level. Fork or scratch up the top few centimetres — compacted patches (common where traffic caused the death) reject new roots. Level with a topdressing mix: a sandy loam or a bagged lawn topdress, screeded flush with the surrounding soil, never burying live grass at the edges more than lightly.
3. Invite the runners in. Make sure patch edges meet loosened soil. For faster cover, pin or lightly bury living runners from the healthy edge across the patch — they root where they touch soil. Kikuyu and couch will also strike from sprigs (short runner pieces planted into the topdress), which is how you can “steal” repair material from thick areas or a friend’s lawn of the same type.
4. Feed and water for establishment. A light feed suits actively growing lawn (timing rules here — and note the exception below), and the patch needs consistent moisture until covered: this is the temporary establishment phase where frequent light watering is correct before returning to deep-and-occasional.
5. Mow high over the repair for the first few passes (heights guide) so young runners aren’t ripped out.

Expect visible closing-in within a few weeks in spring; a dinner-plate patch typically disappears within a season. Kikuyu is fastest, couch quick, buffalo steady, zoysia slow but sure.

Seed, and the buffalo exception

Couch and kikuyu seed exists and can help large thin areas — sow into prepared soil in warm weather per the packet. Buffalo cannot be repaired with seed: Australian buffalo varieties aren’t sold as viable seed, and anything marketed as “buffalo seed” won’t be the lawn you have. Buffalo repairs come from runners or from plugs and turf pieces of the same variety.

When returfing is honestly the better call

Runner repair scales badly. Rough rule: if more than about a third of the lawn is dead, or the dead zones are bigger than bath-towels, patching by runners takes a full season of nursing while a few square metres of matching turf fixes it in a weekend for less effort. Cut out the dead area square, prepare the soil as above, lay turf of the same variety (mismatched patches are forever), and keep it moist while it roots. Same-variety matching matters most with buffalo — varieties differ visibly.

Either way, the lawn that closes over the patch is only as durable as the conditions around it — mowing height, feeding and watering carry the repair from “green again” to “stays green”, and that’s the whole-lawn system.

Related: Hydrophobic Soil: Why Water Runs Straight Off and How to Fix It.