Expanded Clay Pebbles

Expanded clay pebbles are a clean, lightweight, and reusable growing medium that has become a staple for many growers. Produced by heating natural clay at high temperatures, these hard, porous balls provide excellent drainage, reliable aeration, and strong root support. Used primarily in hydroponic systems, they are also popular with soil and coco growers looking to improve airflow and reduce the risk of waterlogging.

Flagship uses include Flood & Drain systems, where the pebbles’ stable structure allows repeated cycles without breakdown, and Deep Water Culture (DWC) or Dripper setups, where they offer consistent root performance and support nutrient access. Many growers also mix clay pebbles into soil or coco to enhance aeration and maintain a healthier root zone. Easy to clean and long-lasting, they are valued for their sustainability and cost-effectiveness over multiple grows.

Expanded clay pebbles are perfect for growers who want versatile substrates and dependable performance, available at Greens Horticulture with quality options, excellent value, and quick UK delivery.