How long does fertilizer last?

The longevity of fertilizer depends on its type and the environmental conditions. Granular fertilizers can last several weeks to months in the soil, while slow-release formulations may provide nutrients for several months. Liquid fertilizers typically have a shorter lifespan, often lasting just a few weeks. Factors like soil temperature, moisture, and microbial activity can also influence how quickly fertilizers break down and become available to plants.