What does the guaranteed analysis on fertilizer labels indicate?

The guaranteed analysis on fertilizer labels indicates the ratio of nutrients contained in the product. This analysis is typically expressed in a three-number format, representing the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. This information is crucial for users, as it allows them to understand which nutrients are present and in what quantities, enabling them to select the appropriate product for their specific soil and plant needs.

Knowing the guaranteed analysis helps garden and landscape professionals tailor their fertilization practices to promote healthy plant growth, as different plants require different nutrient ratios for optimal development. This key information empowers users to make informed decisions regarding fertilization, ensuring effective nutrient management.