Showy tropical hibiscus bloom best when fertilized with ferti-lome Hibiscus & Tropical Plant Food. This fast-acting plant food enhances the color, size, longevity, and number of blooms. Works for other tropical plants, too! Use every other week until blooms appear, and then once a month while blooms are present. 4 pound bag. 

When should it be used? Apply every other week until blooms appear, and then once a month while blooms are present.
Where should it be used? For use on tropical hibiscus and other tropical plants. 
How is it applied? Use 1 tbsp. to 1 1/2 cups, depending on container size. Apply over the entire surface of the growing media and water in thoroughly. 
What is the active ingredient? Nitrogen, phosphate, soluble potash, magnesium, sulfur, copper, iron, manganese, and zinc. 
What is the fertilizer content? 17 - 7 - 10 (17 nitrogen - 7 phosphorus - 10 potassium).
Is it safe for pets? No.

Please read and follow all package instructions.