I have a big grow enclosure in my garage. My plant is about 16" tall now, and lemme tell you, the garage REEEEEKS. Sometimes when I go out in the morning to check the plants, I can smell it from outside the garage. And thats just one plant. Supposedly sour diesel, which is one of the more stinky plants, but I dunno if its really SD or not. Anyways, mine stinks a lot.