Mine in my "backyard" as well. I've seen pics of mold before, but never first hand. I have them in what I call "the nook" very tall vegetation and a shed on three sides so its a bit secluded by rain, I think that is definitely helping me out. It rains like 1/2 as much back there, and still catches wind. I hope I do not get to see the mold, ever. I hear it is a colas worst nightmare.
My dad and bro have always said that there is never much mold around here, I don't think I've ever seen it, other than that orange stuff on the ground. My plants lower branches are well off the ground.