SuperMoss Horticultural Lava is used for soil amendments, decorative fillers, and top dressings for terrariums, potted plants, and garden beds. Used by professional growers and hobbyists alike, horticultural lava improves nutrient retention and soil aeration. Furthermore, SuperMoss Horticultural Lava is pH neutral and provides optimal drainage. As a result, our lava rock stimulates vigorous root growth, and overall, healthier plants and heartier vegetation. Mix with our Heirbloom All Purpose Potting Soil, Coconut Coir, or Succulent Blend to further elevate your personal soil recipe.