What you need to know about LECA!, Urban Green Farms, South Yarra

LECA stands for lightweight expanded clay aggregate. To put it simply, Leca comes in baked clay balls that soak up a little water, after which they expand slightly. It’s a growing medium like soil, used to grow plants. Unlike soil, Leca is a collection of clay soils and doesn’t contain any nutrients. It’s odourless, eco-friendly and reusable. These little clay pebbles can impressively hold up to 4 times their weight in water, and they allow air and water to move freely throughout the growing me

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