At the heart of CANNA COGr product line are compressed unbuffered slabs of coco that require you, the grower, to soak with the special COGr Buffer Agent before you start growing. During the vegetative stage you need a special COGr Vega nutrient. During the flowering stage you need a special COGr Flores nutrient. The fertilizer blend is readily available for plant uptake and can help produce healthful plants, that are better able to resist pests and diseases.