LECA 10-20mm Grade

Size: 2.5L
Sale price£3.49

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LECA (lightweight expanded clay aggregate) has wicking properties that make it an excellent medium for growing plants hydroponically or for use as a component in a soil mix.  

With two available sizes, our LECA will meet the needs of small, medium and large plants alike. LECA is also commonly used as a drainage layer for terrariums and our LECA, being darker and less uniform than some other brands, makes for a more pleasing aesthetic when used for this purpose

LECA is nearly half the density of calcined clay and about the same density as horticultural charcoal, making it an ideal substrate option for drainage layers. We recommend covering LECA with a material such as horticultural fabric or synthetic screening to prevent smaller-grained substrate materials from filtering down.

As Stocked by the UK's Leading Brands

Our premium, peat free houseplant potting soils and substrates are stocked by the UK's leading plant shops, garden centres and plant brands, including:


rhs growtropicals kew growtropicals blue diamond growtropicals

Wholesale Customers

Interested in becoming a wholesale stockist? Our custom substrate range is available for wholesale customers in 2.5L and 8L for retail and also 40L sacks. For more information click here.

Recycling Scheme

All our substrates are now shipped in new resealable packaging. Once you've used the contents, simply post the bag back (or return in person) to us and we'll refill it for a 15% discount. Contact us for more information.

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