LECA, also known as lightweight expanded clay aggregate. It is a versatile, lightweight aggregate made by heating clay to temperatures of around 1200°C (2192°F) in a rotary kiln, which causes it to expand due to the generation of gases within the clay. This expansion results in a porous structure with a hard shell that makes it highly suitable for various horticultural, hydroponic, and construction applications.
naturalGRO LECA is known for its excellent drainage and aeration properties, making it an ideal soil amendment and growind medium for plants. It is often used in gardening and agriculture to improve soil structure, promote root development, and ehance overall plant health. Additionally, LECA is reusable after a thorough washing.