Steffan writes
Hibiscus plants are not listed on the product label and the manufacturer does state "When used as directed, this product is safe to Plants and controls the Diseases listed. Plants not listed may be injured by this product and Diseases not listed may not be controlled." We recommend that you contact the manufacturer directly as they are the expert on their product. You can reach Fertilome at 888-583-5296.
Answer last updated on: 07/21/2011