I did a wee experiment to see what difference there was using perlite and vermiculite to start bean seeds. There is a Part 2 for this and another two-part experiment where I mix perlite and vermiculite in response to a request from a viewer.
Part 2 - http://www.youtube.com/watch?v=2IA8T3GXqBU
Perlite/Vermiculite mix videos
Part 1 http://www.youtube.com/watch?v=H3NQ4HFPQrA
Part 2 http://www.youtube.com/watch?v=N79PVsV1L4s
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