GT Spring Summer 20-10-10 Fertiliser 25kg is a powerful, fast-acting lawn feed designed to kickstart growth and improve the health and colour of grass during the active spring and summer growing season. Its high-nitrogen formula encourages vigorous leaf and shoot growth, while the balanced levels of phosphate and potassium support strong root development and overall turf resilience.

This professional-grade fertiliser is ideal for gardeners, landscapers, and turf care specialists looking to rejuvenate tired lawns, green-up grass quickly, and maintain lush coverage through the warmer months. Suitable for use on both domestic and commercial lawns, this 25kg bag offers excellent coverage for large areas.

Features & Benefits
High nitrogen (20%) for quick green-up and strong shoot growth
Balanced 20-10-10 NPK ratio promotes healthy, dense turf
Granular formulation for even, consistent application
Encourages both top growth and strong root support
25kg bag covers up to 714m²
Fast visible results for lawns that need a spring or summer boost

Applications
Domestic lawns and gardens
Landscaped grounds, estates, and parks
Commercial green spaces and housing developments
Turf renovation and repair after winter wear

Application Rate:
Apply at 35g/m². One 25kg bag treats approximately 714m².

How to Apply:
Use a spreader to apply evenly to dry grass.
For best results, apply during periods of active growth between March and August.
Water in after 48 hours if no rain occurs.
Avoid mowing 2–3 days before and after application.

Formulation Breakdown:
Nitrogen (N): 20% – Rapid leaf and shoot growth
Phosphate (P₂O₅): 10% – Supports root development
Potassium (K₂O): 10% – Improves drought resistance and turf strength

* Packaging and branding of the delivered product may vary from the images shown. 

Product Name | GT Spring Summer 20-10-10 Fertiliser

Nutrient Analysis | NPK 20-10-10 – Nitrogen (20%), Phosphate (10%), Potassium (10%)

Format | Granular lawn fertiliser

Application Rate | 35g per m²

Coverage | 714m² per 25kg bag

Bag Size | 25kg

Application Method | Apply evenly with a spreader to dry grass

Usage Period | March to August (spring and summer months)

Benefits | Quick green-up, dense turf, strong roots, drought resistance