If you are in the Perth metropolitan area, your soil will most likely be sand. If you are looking to grow long term healthy trees, sand will not give you much long term success.
These cost effective, premium grade soil builders are fantastic for either establishing or maintaining your lawn or garden. As soon as it is added, it increases existing soil performance by providing nutrient rich humus that works to build water storage, encourages nutrient uptake through microbe activity and suppresses pests and diseases – enabling your plants to thrive!