
Nitrogen is one of the most essential nutrients for healthy plant growth. Most plants cannot utilise the nitrogen in the air around us, so they rely on the nitrogen available in the soil. However, not all soils are nitrogen-rich, and even if they once were, nitrogen levels deplete over time, so it's up to us gardeners to maintain nitrogen levels in the soil. If not replenished, soil fertility declines, leading to weaker plants and smaller harvests.
But why do plants need nitrogen? You may hear us regularly rhapsodize about how crucial soil health is for your yard. For your planting to be at its most exuberant and the colors at their most saturated, the plants need rich, productive soil that is rich in nitrogen, as it is a key component of chlorophyll, which plants use to photosynthesize and produce energy.