Exfoliators Premium Vermiculite is by far the most widely used media in the Grape Vine Propagation Industry in Australia today. Our Premium Vermiculite provides a lightweight sterile inert temperature stable environment so as to ensure the best possible strike-callusing rates that the industry have ever experienced. Previously the industry used materials such as sand and saw dust which have now been replaced by Exfoliators Premium Vermiculite as it is a constantly high quality, contaminant free media that is easy and lightweight to use.