A soilless substrate composed of mineral components, providing aeration, drainage, and nutrient retention, is frequently utilized in modern horticulture as an alternative to traditional potting soil. This engineered medium offers a stable and consistent environment for root development, promoting healthy plant growth. Examples include mixtures of lava rock, pumice, and zeolite.
The adoption of such substrates contributes to improved plant health, reduced risk of root rot, and more efficient nutrient delivery. Its use supports sustainable practices by minimizing water waste and reducing the need for frequent repotting. Historically, these types of mixes have become increasingly popular as indoor gardening gains prevalence and as growers seek greater control over growing conditions.