Contains Certain Elements (Mg, K) Retains Water and Nutrients pH Neutral to Slightly Alkaline Improves Soil Nutrient Retention Capacity Perfect Solution for Smart Farming Enthusiasts. Thanks to its natural formula, vermocolite improves soil aeration and increases its water holding capacity, providing an ideal environment for seed germination and healthy plant growth. It can be used alone or mixed with compost to improve fertility, or with clay to loosen soil density. Environmentally friendly, lightweight, easy to use in home gardens, farms, indoor and outdoor planters.