When Is the Best Time to Fertilise Lawns in Auckland?

Fertilising at the wrong time can waste money, weaken turf, and increase weed growth. In Auckland’s climate, timing is everything.

Because Auckland experiences mild winters and strong spring growth, fertiliser schedules differ from colder regions of New Zealand.

🌱 Early Spring (September–October)

This is one of the most important fertilising periods.

Benefits:

• Supports rapid spring growth

• Improves lawn colour

• Encourages density

• Helps lawns compete with weeds

Use a balanced fertiliser suited to cool-season grasses such as Tall Fescue and Ryegrass.

🌿 Late Spring (November)

If your lawn is actively growing, a second lighter application may be appropriate.

Avoid overfeeding, which can cause excessive top growth and mowing demand.

🍂 Early Autumn (March–April)

Autumn fertilising strengthens root systems before winter.

This improves:

• Winter resilience

• Early spring recovery

• Overall turf density

⚠️ When NOT to Fertilise

Avoid:

• Extreme summer heat

• During drought stress

• When weeds are untreated

• Immediately before heavy rainfall

Professional Lawn Fertilising in Auckland

Correct timing, product selection, and application rate matter.

If you’re unsure what your lawn needs, read our full Lawn Care Auckland Guide for a complete seasonal breakdown.

Or contact Frasers Mowing for professional Lawn Fertilising Auckland services tailored to your property.