Calcium strengthens the soil, leading to a stronger and healthier plant!7 oz box of pure, clean, fresh, egg shell powder.Egg Shell Powder is 95% pure calcium!The presence of more calcium leads to healthier plants [no end rot or powdery mildew], more of the soil’s nutrients are available to the plants due to increases activity of beneficial bacteria, and naturally defends your garden from unwanted insect invaders. Calcium in the soil can be the difference between an average garden and an incredible garden. One of the best natural sources of organic calcium is egg shells (96%+ pure calcium). Benefits include: Egg Shell is naturally probiotic for the soil. Why does this matter? The more active and present “good bacteria” is in the soil, the quicker soil-based nutrients are made available to the plants. Beneficial bacteria also help to fight and deter undesirable bugs from the garden like aphids, leaf mites and the like. The exoskeletons of these tiny critters are made of a material called chiton, which the beneficial bacteria attack. Calcium is a key micronutrient that helps to prevent powdery mildew and end rot. These diseases tend to attack plants that fruit, for example: squash, tomatoes, peppers, etc. The presence of calcium in the soil, enhances the plant’s immune system, leading to a better defense against disease and nutritional deficiencies. How much of the egg shell powder should you use in your garden? Sprinkle the entire 7oz box. Blending Egg Shell Powder directly into your soil: Mix this raw, cleaned, and crushed egg shell powder into your garden or potting soil. Mixing it directly into the ground with a shovel or needing it into the soil by hand will work just fine. For gardens or containers where plants are already growing: Sprinkle the Egg Shell Powder directly onto the surface of the soil. This will provide the same benefits, over time, as blending the egg sell powder directly into the soil.