Organic Granulated Polyhalite Fertiliser | Mined
Organic Granulated Polyhalite Fertiliser | Mined in Yorkshire |14% Potassium, Calcium & Magnesium (9kg) 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...