Organic Granulated Polyhalite Fertiliser. Mined in Yorkshire 14% Potassium Oxide

Polyhalite Fertiliser is a premium, naturally occurring mineral fertiliser sourced from the historic Boulby Mine in Yorkshire, UK — the world's only commercial polyhalite operation. This certified organic multi-nutrient powerhouse provides a balanced supply of essential elements: approximately 14% potassium (K₂O), 17% calcium (CaO), 6% magnesium (MgO), and 48% sulphur (SO₃) as sulphate, all in a water-soluble, low-chloride granular form. With no chemical processing involved, its slow-release properties ensure sustained nutrient availability, promoting healthier plants, improved soil structure, and enhanced resilience without synthetic additives — making it ideal for organic and sustainable gardening.

This exceptional fertiliser has gained fame for its role in maintaining the iconic lush green grass courts at Wimbledon. Featured in The Daily Telegraph (July 2023), polyhalite is used as a key component in turf nutrition programs to deliver vibrant colour, density, and durability to the courts, helping achieve that perfect playing surface.

8 Key Benefits of Polyhalite Fertiliser:

• Certified organic — Approved by bodies like the Soil Association and OMRI, suitable for organic farming and gardening with no synthetic inputs.
• Multi-nutrient powerhouse — Supplies four essential macro-nutrients (K, Ca, Mg, S) in one natural mineral for balanced plant feeding.
• Chloride-free and low-salt — Safer for sensitive crops and turf, reducing salinity stress and leaf burn.
• Slow-release action — Gradual nutrient release matches plant uptake, minimising leaching and runoff for better efficiency.
• Improves soil health — Enhances structure, water retention, and microbial activity through calcium and magnesium.
• Boosts yield and quality — Proven to increase crop yields, fruit/vegetable size, flavour, and turf density.
• Enhances plant resilience — Strengthens roots, improves drought and disease tolerance, and supports vibrant colour.
• Environmentally friendly — Natural mineral with a lower carbon footprint and reduced risk of nutrient pollution.

Directions for Use (improved and verified for general home/garden application; always soil test for precision):

• Soil Mix: 2.5–5g per litre of compost/potting mix at planting.
• Top Dressing: 1–3g per litre of soil (or 10–30g per 10L pot) for established plants.
• Outdoor Lawns/Gardens: 50–125g per m², applied every 6–12 weeks during the growing season (spring to autumn); water in well for best results.

Perfect for organic and sustainable gardening — achieve Wimbledon-worthy greens in your own backyard!