Bone meal acts as a great fertiliser for a few key reasons. The first is that it’s a great source of phosphorus, which is an essential nutrient for plants to help them flower and new plants to produce strong roots, so is good for root vegetables such as onions, garlic, carrot and parsnip. It can be added to planting holes for most plants and is really useful when planting bulbs in the autumn as it encourages root growth so leading to better flowering the following spring. It also contains nitrogen, which encourages plants to grow strong and promotes lush green foliage. Finally, bone meal’s organic matter naturally encourages the improvement of micro-organisms, which can help improve the soil’s fertility and structure. It’s easy for plants to absorb and take up, and is slow-release to benefit plants for months at a time.