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Terra Firma Grassmaster
$49.50
Free Shipping Over $200 (up to 12kg)
Easy 30 Day Returns (some exclusions apply)
Local Family Run Business
Description
Grassmaster® Premium Lawn Fertiliser
Grassmaster® features a new formulation combining bio-catalyst protected, high-analysis nitrogen and phosphate fertilisers, delivering outstanding results for lawns, turf, pastures, fairways, and resort landscapes. Its easy-to-spread granules, enriched with a high level of humic acid, stimulate beneficial soil fungi, solubilise iron, and improve nutrient availability to roots and leaves—resulting in a lush, vibrant, “greener than green” lawn.
Application Rates
Lawn Maintenance:
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Apply 50–100 g per m² evenly every 3 months and water thoroughly.
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For larger lawns, use 5–10 kg per 100 m².
New Lawns:
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Apply Terra Firma’s Lime Impact 1–2 weeks before sowing, turfing, or planting runners.
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Spread up to 100 g per m² and rake into the soil.
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For large areas, apply up to 10 kg per 100 m².
Plants, Fruits, & Vegetables:
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Fruit Trees: 100–500 g per tree (increase rate for established trees).
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Vegetable Beds & Flowers: 75–100 g per m².
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Shrubs & Plants: 30–50 g per shrub.
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Roses & Shrubs: 100 g per m².
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Azaleas, Natives & Acid-Loving Plants: 50 g per m².
Nutrient Profile
| Nutrient | Content |
|---|---|
| Nitrogen (N) | 10.50% |
| Phosphorus (P) | 2.00% |
| Potassium (K) | 8.00% |
| Sulphur (S) | 5.73% |
| Calcium (Ca) | 4.00% |
| Magnesium (Mg) | 0.95% |
| Silicon (Si) | 116 mg/kg |
| Carbon | 18.00% |
| Iron (Fe) | 2000 mg/kg |
| Manganese (Mn) | 240 mg/kg |
| Copper (Cu) | 50 mg/kg |
| Zinc (Zn) | 200 mg/kg |
| Boron (B) | 15 mg/kg |
| Molybdenum (Mo) | 5 mg/kg |
| Cobalt | 2 mg/kg |
Grassmaster® combines high-performance nutrients with humic acid to boost soil health, improve nutrient uptake, and ensure a greener, stronger lawn season after season.