Eco Growth Prime Garden-All Purpose Rock Mineral fertilizer – Is a rock mineral based complete garden food suitable for general use on roses, ornamentals, *natives, vegetables and fruit trees. Containing a full range of minerals and beneficial microbes to feed your plants and stimulate soil health the natural way. *Note some native and exotic plants are sensitive to phosphorous particularly plants of the Grevillea, Banksia, Protea family, for this reason we don’t recommend Eco Prime for use on these phosphorous sensitive plants. How are rock mineral based fertilizers like Eco Prime different from conventional fertilizers? Rock mineral based fertilisers offer an environmentally friendly way to feed your plants and assist in building a healthy soil. Rock mineral fertilisers are derived from natural volcanic and sedimentary deposits containing some of nature?s richest soil building materials. These fertilisers contain excellent complements of micro-elements, beneficial soil microbes, and are naturally slow release and non leaching. These intelligent fertilisers use microbes to gradually make the minerals available to plants.