Lechuza Pon is a high-quality, pure mineral plant substrate. It is the perfect alternative to conventional soil. Perfect for all plants, including foliage, flowering plants like orchids, citrus plants, herbs, tomatoes, fruit trees, cacti, and more. Can be used indoors and outdoors. Ideal air to water ratio for plants (45% water/55% air). Can be used for years without needing to be replaced. Zeolite maintains the ideal pH balance. Absorbs excess fertilizer and gives it back to the plant when needed, therefore, preventing the burning of the roots through overfertilizing. Blocks fungi that can attack the roots and prevents bugs such as gnats, since they typically only nest in soil. When planting, you don't need to completely free the root ball from the soil.