Fertilizer based on iron sulfate specific for treating leaf yellowing ferric chlorosis. Promptly assimilated by plants by the roots, it gives evident results in a short time, helping the plant to return in a perfect nutritive balance after the stress due to chlorosis. Moreover, acidifying, has good effect as a blue for hydrangeas. Advantages With preventive and curative action. For the protection of vegetation and vine clusters. Systemic activity. Excellent resistance to leaching. Indicated for Treat leaf yellowing, such as blueing for hydrangeas.