The CoCo fertiliser line, made distinctive by the colour brown, was developed for plants growing in CoCo substrate. CoCo substrate is able to form compounds with nutrient elements, as a result of which these elements are no longer freely available for absorption by the plant. Because of the unique properties of coco, this method of cultivation requires specific nutrients to stimulate the development of the plant. Coco has a great buffer capacity. On the one hand this is an advantage, because it makes growing on Canna CoCo very user-friendly. However, this also makes it difficult to provide the slab, from the beginning, with the right types and amounts of nutrients.