BAC F1 Extreme booster provides the extra potassium and phosphorus for your plants, as well as high quality trace elements and various sugar molasses. Strongly concentrated, it needs only be administered in weeks 6, 7 and 8 of the flowering period. Furthermore, it can be used on all mediums and in combination with all other nutrition products.
For the organic growers amongst us, we refer to our Organic PK Booster. This booster offers the same results, but is released more slowly and therefore needs to be administered in different dosages and at different times during the flowering stage.