The Function of Organic Fertilizer
Organic products are ideal for your landscape, because they feed the soil, creating a sustaining environment. Healthy soil leads to healthy plants.1 But when you garden organically, you do much more than nourish your plants.
As in nature, an organic soil alive with microbes and fungi releases nutrients slowly to plants. By enriching the soil with organic supplements and encouraging the growth of naturally occurring beneficial organisms, you give your plants the tools they need to access nutrients in the soil and the strength to protect themselves from harmful pathogens and pests. Take the natural approach and amend with soil conditioners, such as earthworm castings, which add organic matter, including humid acid, and desirable microorganisms to your garden soil. This helps make soil borne nutrients, such as iron, more available to plants.
Gypsum is a soil additive that helps to loosen compacted soil and promote root growth while enriching the soil with calcium and sulfur. Gypsum also improves soil structure.