Just wondering if anyone has heard of growing in just a perlite / vermiculite mix and no soil what so ever!

I have a mate doing this with success although i would like to hear what you guys think about this? or whether any of you guys have done this before..
tristan1986 Reviewed by tristan1986 on . Vermiculite & Perlite, (no soil..) :) Just wondering if anyone has heard of growing in just a perlite / vermiculite mix and no soil what so ever! I have a mate doing this with success although i would like to hear what you guys think about this? or whether any of you guys have done this before.. Rating: 5