House & Garden Top Booster is an extremely powerful flowering stimulator which achieves exceptional results. Top Booster acts on the basis of PK 13-14 but with the added benefits of iron (Eddha-Fe). The basis of all flowering boosters is a blend of pure potassium and phosphorus. These elements are important for the plant’s flowering process and creating superior flowering sites. Potassium is for the beginning of the flowering stages and phosphorus is for the proper development of flowers. Top Booster’s Eddha-Fe additive enables maximum absorption of nutrients stored within the leaves, helping to leach the plants nutrient reserves, resulting in larger flowers. Top Booster also aids in the strengthening of the plants frame by stopping the upward growth of the plant and allowing the plant to prepare for the maximum weight of the soon to be matured flowers. Dutch growers have been breaking records for years with this unique blend. Find out for yourself why Top Booster belongs in a category of its own.