UP320 is specifically designed for growing in confined spaces, providing a nutrient rich growing layer to ensure immediate and continuous garden success. It is a free draining media, that has great workability and optimal water retention. UP320 is a blend ofquality sands, rich compost, bark fines and premium Waikato topsoil. Enhanced with slow-release fertiliser and wetting agents, it is designed for highperformingplant growth, health, and longevity.