gritty mix for outdoor potted plants?
I did a little research on the 1:1:1 "gritty mix" of strange ingredients that people here have been recommending. It just seems so dry and nutrient deficient, that I'm afraid maybe it's a difference of climate from the recommenders. I live in Phoenix and I grow mostly small potted cacti and succulents outdoors. Do fellow Phoenicians use gritty mix in such hot, dry conditions, or is there something else that works for you?