Bims Vulkastrat 2-5 mm (12.5L)

The perfect blend of pumice, zeolite, and lava for extra drainage, a solid structure, and nutrient binding. The grain size of this mix is 2 to 5 mm. It comes in a medium-sized bag weighing over 10 kg.

Vulkastrat can be mixed well with, for example, Akadama (in equal quantities, or possibly a little more akadama if you want to retain more moisture).