From late spring to early autumn they'll do fine here outside. I also have a greenhouse to house them. In winter I have to bring them indoors. Some of my tichocereus peruvianus cacti survived the winter in the greenhouse though with temperatures below minus 3 C for some days straight. Day temperatures were mostly around freezing point (in the greenhouse). So I'll try to do this with some of the lophophora's next winter.
Actually it is still winter here... it doesn't seem to end this year.
Actually it is still winter here... it doesn't seem to end this year.