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Expanded clay granules are used mostly in hydroculture, in which different crop/pot diameter combinations have different water requirements and specific optimum granule sizes.

But Jongkind’s clay granules can be used for a wide range of other applications, too. We use the following classification system:

Jongkind 5 icoontjes


For each of these applications Jongkind offers you a wide range of clay granules in the following diameters and shapes: