The vermicompost use : the gardener oil The vermicompost must be mature, that is waste must be completely degraded so that it can serve for your plants. It improves the structure of the ground and increases its capacity of water retention. It brings a beneficial microbial activity to plants and supplies them essential nourishing elements, available on a long period of time. The plants which receive from the vermicompost are more productive and more resistant to parasites and to diseases. Furthermore, the use of vermicompost makes useless the recourse to artificial fertilizers. It is advised to use it within 6 months maximum. If you have to store of the vermicompost, put in bag and store in a cool place. For the repotting of house plants, we can mix a part of vermicompost in four or five parts of ground or compost.