CoreTurf · Lawn Guide

The science of a
great lawn.

Technical guides for serious Australian lawn owners. GDD explained. PGR timing. Fertiliser schedules for Couch, Kikuyu, Buffalo and Zoysia. Written for people who treat their lawn like a craft.

● GDD & PGR

What is GDD and why does your lawn need it?

Growing Degree Days are the scientific measure of how much heat has accumulated since your last application. PGR breakdown is driven by temperature, not the calendar — which is why reapplying "every 3 weeks" gives you wildly different results in January vs July.

Read the guide
Seasonal · Autumn

Autumn pre-emergent timing for Australian lawns — soil temperature, not the calendar

The pre-emergent window is driven by soil temperature, not a date. Here's how to time it across AU climate zones.

Seasonal · Autumn8 min read
Buffalo · Seasonal

Buffalo grass in autumn and winter — what's actually happening, and what to do

Buffalo goes off-colour, purples, and slows down in cool weather. Most of it is normal physiology, not death. Here's what to do (and not do) through the cool months.

Buffalo · Winter9 min read
Fertilising · Couch

Couch grass fertiliser schedule — month by month guide for Australia

Couch grass has different nutritional needs through the year, and what you apply in early spring affects your summer program more than most people realise. A month-by-month breakdown for Australian climate zones.

Couch Grass · FertilisingComing soon
GDD & PGR

When to reapply PGR to Couch grass — a GDD-based approach

Stop using the calendar. Here's how GDD accumulation works in practice and how to use it to dial in your Primo Maxx or Limitless timing.

Couch Grass · PGR7 min read
Kikuyu

Kikuyu lawn care Australia — the precision approach

Kikuyu is fast-growing, heat-loving, and highly responsive to PGR management. Here's how to manage it properly in an Australian climate.

Kikuyu · Care GuideComing soon
Seasonal

Spring lawn preparation — the 6-week plan for warm-season grass

What to do, in what order, in the 6 weeks leading up to peak spring growth. Scalping, fertilising, PGR program restart — with timing.

Seasonal · SpringComing soon

Track it all in CoreTurf

Your GDD data, spray log, and full program — managed from your phone. Android is live. iOS is coming.

Free download Get the App