Phased Release 18-3.5-8+1Mg Fertiliser 20kg

Phased Release 18-3.5-8 +1Mg Fertiliser 20kg is a professional, organic-based NPK fertiliser designed for lawns, paddocks, pasture, sports turf, trees, and ornamental plants. Its slow-release formulation gradually delivers nutrients over 12–16 weeks, supporting steady growth while reducing the risk of scorching or sudden rapid leaf development.

This fertiliser contains 18% nitrogen, 3.5% phosphate, 8% potassium, and 1% magnesium, providing balanced nutrition for healthy top growth, strong roots, and improved turf resilience. Magnesium supports chlorophyll production and maximises nutrient uptake, while the mini-granular formulation (1–2.5mm) ensures excellent spread and consistent coverage.

Phased Release 18-3.5-8 +1Mg is ideal for use in high-quality lawns, sports pitches, amenity turf, and trees or ornamentals where controlled nutrient release is critical. Its slow-release properties make it suitable for periods of active growth in autumn, spring, and summer.

Features & Benefits

Slow / Phased Release (12–16 Weeks) - Provides consistent nutrient delivery without rapid growth or turf scorch.

High Nitrogen (18%) - Supports healthy leaf and shoot development.

Balanced NPK with Magnesium - Encourages root growth, stress tolerance, and chlorophyll production.

Mini-Granular (1–2.5mm) - Ensures even coverage and efficient nutrient uptake.

Versatile Turf & Amenity Application - Suitable for lawns, sports turf, paddocks, pasture, trees, and ornamental areas.

Reduces Risk of Scorch - Controlled nutrient release protects delicate turf surfaces.

Sizes

20kg bag

Applications

Domestic and commercial lawns

Sports pitches and playing fields

Paddocks and pasture grass

Trees and ornamental plants

Amenity turf areas

New grass or recently seeded areas

Application Rate

50g per m²

Coverage:

One 20kg bag treats up to 400m²

Adjust rate depending on desired top growth and soil nutrient levels.

How to Apply

Spread evenly using a pedestrian or vehicle-mounted spreader, or by hand.

Apply to dry grass or soil for optimal nutrient uptake.

Avoid mowing for 2–3 days after application.

Apply during autumn, spring, or summer to match active growth periods.

Water lightly if no rain occurs within 48 hours to activate nutrients.

Product Name | Phased Release 18-3.5-8 +1Mg Fertiliser

Fertiliser Type | Mini Granular Phased Release Fertiliser

Nutrient Analysis | NPK 18-3.5-8 +1Mg

Nitrogen (N) | 18%

Phosphate (P₂O₅) | 3.5%

Potassium (K₂O) | 8%

Magnesium (Mg) | 1%

Granule Size | 1–2.5mm (mini)

Pack Size | 20kg

Application Rate | 50g per m²

Coverage | Up to 400m² per bag

Application Method | Spreader or hand application

Suitable Areas | Lawns, sports turf, paddocks, pasture, trees, ornamentals, amenity turf

Safe For Use On | Grass, lawns, new grass, conifers, fruit trees

Nutrient Release | 12–16 weeks (phased release)

Usage Period | Autumn, spring, summer