PowerFeed Controlled Release Plant Food for Flowers, Fruit and Citrus combines a dynamic blend of nutrients, trace elements, seaweed and microbes to boost healthy growth and yields in all flower and fruiting plants. It also contains specific granules which are coated with up to 24 strains of Australian cultured beneficial microbes. These microbes work to help improve soil structure and assist plants in nutrient uptake and can help protect plants from soil borne diseases.