Vermiculite for Gardening is a must-have soil additive that helps plants grow stronger and healthier. It’s a natural mineral that expands when heated, creating a lightweight, sponge-like texture perfect for soil improvement. When mixed into garden soil or potting mix, vermiculite enhances moisture retention, aeration, and nutrient absorption—key factors for thriving plants. Gardene... http://keltechenergies.com/vermiculite.html