What exactly do you mean by growing without soil?Growing your own food is never foolproof or easy.But through trial and error the sweetness of succes awaits.I personaly like the web site wheatgrassman.com,the seed has performed well for me in central ILL.wheatgrasskits.com has a nice website but there seed is lacking in uniformity.The seed is however somewhat cheap,but you get what you pay for.Good enough to experiment with minimal investment.sproutpeple.com is a very informative site as far as growing is concerned.Good luck and happy growing!