GT Complete Weed Feed Moss Killer is a triple-action lawn fertiliser that feeds the grass, kills common lawn weeds, and eliminates moss — all in one easy-to-use product. Formulated for convenience and fast results, this 10kg granular blend is perfect for revitalising tired lawns during the growing season. The weedkiller targets broadleaf weeds such as dandelions, daisies, and clover, while iron sulphate blackens and kills moss within days, leaving grass greener and healthier.
This product is ideal for home gardeners looking for an all-in-one solution as well as professional gardeners, landscapers, and lawn care contractors managing lawns in residential and amenity settings. With a quick turnaround and visible results in as little as seven days, GT Complete makes lawn care simple and effective.
Features & Benefits
3-in-1 formulation: feeds grass, kills weeds, and controls moss
Fast-acting moss control with added iron sulphate
Effective weed control for common broadleaf species
Encourages greener, stronger lawns
Granular format for easy and even application
10kg bag treats up to 285m²
Applications
Domestic lawns
Managed housing developments
Light commercial landscapes
Lawn care programmes for amenity turf
Application Rate:
Apply at 35g/m² for best results. One 10kg bag covers approximately 285m².
How to Apply:
Apply using a lawn spreader or by hand with a suitable applicator.
Apply on a dry day when rain is not expected for at least 24 hours.
Do not mow for 3 days before and after application.
Water in after 2 days if no rainfall occurs.
Rake out dead moss 7–14 days after treatment.
Formulation:
Nitrogen (N): 10% – Promotes lush, green growth and helps grass recover from weed and moss damage by boosting leaf and shoot development.
Phosphate (P₂O₅): 2% – Supports early root growth and establishment, especially useful for stressed or patchy areas of lawn.
Potassium (K₂O): 2% – Aids in overall plant health and improves stress tolerance, particularly in drier summer conditions.
Iron (Fe): 8% – High iron content blackens and scorches moss quickly while also giving the lawn a deep, rich green colour. Selective Herbicide: Targets a wide range of broadleaf weeds

Specification Details
Product Name GT Complete Weed Feed Moss Killer
Function Lawn feed, weed control, moss killer
Nutrient Analysis Contains nitrogen & iron sulphate
Herbicide Type Selective broadleaf weedkiller
Iron Content For moss control and turf greening
Format Granular
Bag Size 10kg
Application Rate 35g/m²
Coverage 285m² per bag
Application Method Spreader or hand application
Usage Period Spring through early autumn