

Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a light weight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The yielding gases expand the clay by thousands of small bubbles forming during heating producing a honeycomb structure. LECA has an approximately round or potato shape due to circular movement in the kiln.
Leca® is the world leader in horticultural, agricultural & hydroponic substrates. The benefits of Leca are :
Intact Granules
Fragmented Granules
Manufactured to relevant ISO standards, Leca® is consistent in nature:
This service is available for paid orders and is subject to our Covid19 collection terms and conditions which can be seen at the below link.
From our award winning customer care to growing sheet downloads for all items stocked, we are with you on your exciting growing journey!
Just looking for Horticultural & Hydroponic Products? Shop now at H2GRO for a massive range of products in-stock and ready to ship!
Sign up to our newsletter to be the first to hear about our latest offers, growing tips and products!