Product details
Grassmaster Organic-Based Fertiliser
Premium Nutrition for Lawns, Turf, Plants, and Gardens
Grassmaster® is a high-performance, organic-based fertiliser designed for professional turf management, landscaping, horticulture, and home gardening. It provides essential nutrients for lawns, pasture, fairways, ornamental plants, fruit trees, shrubs, and vegetable gardens. Formulated with bio-catalyst-protected high-analysis nitrogen (N) and phosphorus (P), Grassmaster® enhances soil health, optimises nutrient availability, and promotes vigorous, long-lasting growth. The inclusion of humic and fulvic acids improves iron solubility, leading to deeper green turf and healthier plants.
Key Features & Benefits
- Balanced NPK Formula – 10.5% Nitrogen, 2.0% Phosphorus, and 8.0% Potassium for sustained growth and root development.
- Organic-Based Composition – Contains Terra Firma’s Poultry Manure Base for natural soil enrichment.
- Improved Nutrient Retention – Features Black Urea® & Black DAP™ to reduce nitrogen volatilisation and phosphorus leaching.
- Enhanced Soil Health – 4% Calcium (Ca) supports soil structure and offsets acidity from fertiliser use.
- Essential Micronutrients – Includes Iron (Fe), Magnesium (Mg), Zinc (Zn), Manganese (Mn), Copper (Cu), and more for optimal plant health.
- Iron Availability Boost – Humic and fulvic acids aid in iron solubilisation, reducing the need for additional iron applications.
- Suitable for Various Applications – Ideal for lawns, turf, trees, shrubs, flowers, and vegetable gardens.
- Easy Application – 4mm granules ensure even spreading and efficient uptake.
Application & Usage Instructions
| Application Type | Rate per Square Metre | Rate per 100 Square Metres | Additional Notes |
|---|---|---|---|
| Lawn Maintenance | 50-100g | 5-10kg | Apply every 3 months and water in well. |
| New Lawns | Up to 100g | Up to 10kg | Rake into soil before sowing seeds, laying turf, or planting runners. Consider applying Terra Firma’s Lime Impact a few weeks before planting. |
| Fruit Trees | 100-500g per tree | — | Use the higher rate for established trees. |
| Vegetable Beds & Flowers | 75-100g | — | — |
| Plants & Shrubs | 30-50g per shrub | — | — |
| Roses & Shrubs | 100g | — | — |
| Azaleas, Native & Acid-Loving Plants | 50g | — | — |
Product Analysis
| Nutrient | Content | Nutrient | Content |
|---|---|---|---|
| Nitrogen (N) | 10.50% | Iron (Fe) | 2000mg/kg |
| Phosphorus (P) | 2.00% | Manganese (Mn) | 240mg/kg |
| Potassium (K) | 8.00% | Copper (Cu) | 50mg/kg |
| Sulphur (S) | 5.73% | Zinc (Zn) | 200mg/kg |
| Calcium (Ca) | 4.00% | Boron (B) | 15mg/kg |
| Magnesium (Mg) | 0.95% | Molybdenum (Mo) | 5mg/kg |
| Silicon (Si) | 116mg/kg | Cobalt (Co) | 2mg/kg |
| Carbon (C) | 18.00% |
Additional Information
- Base Ingredients: Poultry Manure, Sulphate of Potash, Green Cal (Natural Gypsum).
- Granule Size: 4mm for easy and even spreading.
- Storage: Keep in a dry, cool place. Avoid moisture exposure before application.
For more details, refer to the Product Information Guide and Material Safety Data Sheet (MSDS).
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- NPK:
- 10.5-2-8
- Organic Status:
- Organic Based
- Replaces:
- Qld Organics Eco 88
