Plumeria requires three primary nutrients: nitrogen (N), phosphorus (P), and potassium (K). Nitrogen is essential for vegetative growth and leaf development. Phosphorus is crucial for flower formation, root development, and overall plant health. Potassium aids in stress tolerance, disease resistance, and enhances flower color and fragrance. The ratio of these nutrients in fertilizers is often represented as N-P-K, with the numbers indicating the percentage of each nutrient in the product. A balanced fertilizer with equal or slightly higher phosphorus content is suitable for Plumeria.