These expanded clay pebbles, often called LECA, are a versatile growing medium used in hydroponics and traditional potting. The 8mm to 12mm size provides an ideal balance of moisture retention and aeration for root systems. These pebbles are pH neutral and do not break down easily, making them reusable over multiple growing seasons.
In hydroponic systems, these clay balls support the plant's weight while allowing nutrient-rich water to flow freely around the roots. They are also commonly used as a drainage layer at the bottom of pots or mixed into orchid media to prevent soil compaction. The porous structure of the clay helps wick moisture upward to the plant.
This 2lb bag provides enough material for several small containers or a single medium-sized hydroponic bucket. Because they are fired at high temperatures, the pebbles are clean and free of pests or soil-borne diseases. They offer a stable and long-lasting solution for growers who prioritize root health and proper drainage.
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Water and air pumps Deep water culture systems
9.1
Systems for fresh herbs Affordable Leca clay pebbles Kits for beginners
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Affordable
