This quality compound fertiliser with a high content of slowly soluble phosphate plus high levels of potash and magnesium is ideally suited for root development and growth, which is very important in the early stages of growth, especially in difficult soils such as reclamation sites, sand or high organic soils. Its slow solubility resists leaching and extends its availability. Only one application per season is necessary. Safe for use on all trees and shrubs including lime-hating species such as rhododendron and azaleas.