Pretty sure weed doesn't grow in freezing, barren deserts. Neither does anything else, really. Someone in the other thread found out that the growing season there is only 60 days of the year. I don't grow weed (sorry feds, no joy here) so I don't know how long it takes but I don't know if you'd get even one crop a year in that time. Weed/hemp is native to North Africa, where it's, y'know, warm and sunny. That's why you need hydroponics to grow it anywhere significantly colder and darker, and the troons can barely keep the lights on or stop their chicken eggs turning into popsicles overnight, let alone run a hothouse in the freezing winter.
Meth, or maybe shrooms, on the other hand...