This natural plant fertilizer is a must have for any plant owner. It is dried fermented bran that can be used as a top dress, or mixed into any growing medium to create a "living soil”. It contains beneficial bacteria cultures that protect vulnerable roots and provide nutrients to the plant 24/7. Bios adds generous quantities of macro/micro nutrients to ensure long term nutrition for plants. All of this magic is contained in compostable packaging for a zero-waste product.