A lush, green lawn is the pride of any Australian home. However, achieving and maintaining a healthy lawn requires more than just regular mowing and watering. Fertilisers play a crucial role in providing essential nutrients that promote strong root development, vibrant growth, and resistance to pests and diseases.
In this article, we’ll explore:
Why Fertilisers Are Essential for Lawn Health
Key Nutrients in Lawn Fertilisers
Types of Lawn Fertilisers
Best Fertilisers for Australian Lawns
When and How to Apply Fertilisers
Common Lawn Problems and How Fertilisers Help
Sustainable Lawn Care Practices
By the end, you’ll have a solid understanding of how to choose and use fertilisers effectively. Plus, if you’re in the Gold Coast area, we’ll point you to the best local source for all your lawn care needs!
Why Fertilisers Are Essential for Lawn Health
Lawns, like all plants, require nutrients to thrive. While soil naturally contains some nutrients, they deplete over time due to:
Grass growth consuming nutrients
Water leaching away minerals
Foot traffic and mowing stressing the grass
Fertilisers replenish these lost nutrients, ensuring your lawn stays:
Green and dense – Nitrogen promotes lush leaf growth.
Drought-resistant – Potassium strengthens roots.
Disease-resistant – Balanced nutrients improve overall health.
Without fertilisation, lawns become thin, patchy, and vulnerable to weeds and pests.
Key Nutrients in Lawn Fertilisers
Most fertilisers contain three primary macronutrients:
| Nutrient | Role in Lawn Health | Deficiency Signs |
|---|---|---|
| Nitrogen (N) | Promotes leaf growth and green colour | Yellowing, slow growth |
| Phosphorus (P) | Supports root development | Weak roots, purple tint |
| Potassium (K) | Improves stress resistance | Brown edges, disease susceptibility |
Secondary nutrients (calcium, magnesium, sulphur) and micronutrients (iron, zinc) are also important but needed in smaller amounts.
Types of Lawn Fertilisers
A. Granular Fertilisers
Slow-release (e.g., ORGANIC LINK Slow Release Fertiliser) – Feeds over weeks.
Quick-release (e.g., ECO 88 Fertiliser) – Fast greening but needs frequent reapplication.
B. Liquid Fertilisers
Fast-acting (e.g., SEASOL COMMERCIAL Liquid Seaweed Concentrate) – Ideal for quick nutrient boosts.
C. Organic Fertilisers
Made from natural materials, improves soil health long-term.
D. Controlled-Release Fertilisers
Coated pellets – Nutrients release gradually.
Best Fertilisers for Australian Lawns
Different lawns have different needs.
| Product | Type | Best For |
|---|---|---|
| Organic Link Slow Release | Granular slow-release | All indoor & outdoor plants |
| ECO 88 Fertiliser | Organic granular | Greens lawns fast |
| Seasol Commercial Liquid Seaweed Concentrate | Liquid concentrate | Improves root development |
| TRIPLE BOOST 10 10 10 | Liquid concentrate | Improves overall plant health |
| Organic Booster All Purpose | Organic pellets | Eco-friendly lawns |
When and How to Apply Fertilisers
Best Times to Fertilise
Spring (September-November) – Encourages growth after winter.
Summer (December-February) – Light feeding to sustain heat stress.
Autumn (March-May) – Strengthens roots before winter.
Avoid fertilising in extreme heat or before heavy rain.
Application Tips
Mow first – Ensures even distribution.
Use a spreader – For granular fertilisers.
Water lightly – Helps nutrients penetrate.
Follow label rates – Over-fertilising burns grass.
Common Lawn Problems and How Fertilisers Help
| Problem | Cause | Fertiliser Solution |
|---|---|---|
| Yellowing grass | Nitrogen deficiency | High-nitrogen fertiliser (e.g., Garden Basics Urea) |
| Weak roots | Low phosphorus | Starter fertiliser (high in P) |
| Brown patches | Potassium deficiency | Balanced NPK fertiliser (e.g., PowerFeed Controlled Release) |
| Weeds & moss | Poor lawn health | Regular feeding to outcompete weeds |
Sustainable Lawn Care Practices
Use organic fertilisers – improve soil biology
Mulch grass clippings – returns nutrients naturally
Avoid over-fertilising – prevents runoff pollution
Choose slow-release formulas – reduces leaching
Need Quality Lawn Care Products? Visit Garden Nursery Products!
Maintaining a perfect lawn is easier with the right products. At Garden Nursery Products, we stock a wide range of fertilisers, pesticides, fungicides, and landscaping supplies to keep your Gold Coast garden thriving.
Whether you need:
- Premium lawn fertilisers (like PowerFeed and Osmocote)
- Weed and pest control solutions
- Professional landscaping tools
We’ve got you covered! Visit our store or shop online today!
