Growing media: Is your growing media right for you? (June 2023)

Growing media is a fundamental component in containerised production systems and can have a significant impact upon the quality of plants grown. The selection and importance of an appropriate growing media in relation to plant performance is critical for crop success. This Nursery Paper covers a range of topics including air filled porosity, water holding capacity, wettability, water retention efficiency, mean application rate, bulk density, shrinkage, phytotoxicity, optimum pH range, electrical conductivity, nitrogen drawdown and storage. A pH nutrient availability chart is also included.