Tea Tree will uptake available chemical nutrients from the soil, in varying amounts, according to stage of tree development and seasonal conditions. While the base chemical composition of soil will depend upon the materials from which it was formed, and the environmental processes that occurred during its formation, the soil chemistry can be manipulated to some extent through the supply of inorganic fertilisers, organic inputs, and soil ameliorants. But simply incorporating, broadcasting or fertigating sources of nutrients does not mean the tree will use them immediately. We also need to consider how the soil’s environmental processes will store, cycle, and release the nutrients.