Analysis: 10-4-12. This formula, recommended by professional hibiscus growers, contains slow release nutrients that will not burn these sensitive plants, even in pots. It is fortified with five essential micronutrients to correct nutrient deficiencies such as iron chlorosis. Use Hibiscus Food on a regular basis for optimum blooms, thick stems, and beautiful plants. This is a low phosphorous formula specifically designed for Hibiscus, but can be used on plants where soils have a high phosphorous build up.