Quote Originally Posted by zigzach
This is kind of off topic, but noticed on your posting Rasta that you claim perlite to be one of your organic soil ammendments, for the record perlite is not OMRI certified, and therefore is technically not considered "organic".
I think you are confused. We don't distinguish between organic and inorganic for minerals. It's like saying that water isn't organic!

Technically, an organic compound is any compound that contains carbon. However, I think we're talking about a different meaning for the word "organic" when we refer to organic gardening.

Basically, the way I see it, for organic gardening you need to use natural fertilizers, growing mediums, etc. that aren't altered or created by man. Inorganic gardening (or using chemical fertilizers) would involved the use of man-made or supplemented materials. Someone please correct me if I'm wrong...

As far as the use of perlite, "disqualifying" the plant from being labeled as organic... that is just incorrect. Volcanic rock is a natural part of this world...