NZLA All Seasons Slow Release (20kg) Lawn Fertiliser

NZLA Professional Turf-Grade Lawn Fertiliser – Balanced NPK with Iron for New Zealand Lawns

Looking for the best lawn fertiliser in New Zealand?

This NZLA slow release blend is a professional-grade lawn fertiliser formulated specifically for Kiwi conditions. With a balanced nutrient profile and added iron, it delivers both fast greening and sustained growth for healthier, thicker lawns.

NPK Analysis: 21-1-16 + 5% Iron

Application rate: 2kg per 100m²

Coverage: 20kg covers 100m²

Results: Long-lasting colour, even growth, stronger turf

Why it’s the best choice for Kiwi lawns

Many fertilisers in New Zealand rely on low-quality coated urea that breaks down too quickly, causing uneven growth. NZLA uses premium polymer and sulphur-coated urea (PCSCU) sourced from the USA — the most reliable slow release technology available. The result is consistent feeding over 6–8 weeks with fewer peaks and troughs in growth.

Key benefits:

• Balanced nutrients for both root strength and leaf colour
• 5% iron for a rich, deep green finish
• Professional turf-grade quality available to home lawn owners
• Designed for New Zealand’s unique growing conditions

How it compares to other fertilisers

Unlike generic garden fertilisers from hardware stores, NZLA fertilisers are engineered for Kiwi lawns using advanced turf formulations. Cheaper alternatives often use inferior Chinese PCSCU prills or agricultural blends. NZLA prioritises quality, making us one of the only New Zealand suppliers providing true professional-grade turf fertilisers to homeowners.

Perfect for Kiwi backyards

This fertiliser is ideal if you want to:

• Improve lawn colour and density quickly
• Fix pale or patchy areas with a balanced nutrient blend
• Maintain healthy growth through New Zealand’s seasons
• Achieve results trusted by turf managers and golf courses — now available for your home

Backed by New Zealand’s largest lawn care community

With over 20,000 members in the New Zealand Lawn Addicts community, NZLA customers aren’t just buying fertiliser — they’re joining a movement. Thousands of Kiwi lawn owners share results, photos, and advice, making NZLA New Zealand’s most trusted lawn care brand.

Expert tip for best results

Apply this fertiliser during active growth periods such as spring and autumn. Always water in thoroughly after application to activate the nutrients and prevent scorch. For best results, mow and clear clippings before spreading.

Imported directly from the USA

All NZLA fertilisers are formulated by a leading US turf nutrition company using advanced prill technology and globally sourced premium ingredients. That’s why NZLA fertilisers consistently rank among the best lawn fertilisers in New Zealand.