Sun Gro 1312116 Black Gold Palm and Hibiscus Fertilizer 6-5-3, 4 Pounds Black gold palm and hibiscus fertilizer 6-5-3 This balancing fertilizer contains nitrogen, phosphorus and potassium, the 3 essential elements of plant nutrition, plus iron and magnesium It is safe to use for plants Apply every 6 to 8 weeks for a full season of success This product contents 4 pounds