Are typical Mexican bag seeds predisposed to turning purple?

Has anybody tried growing them and giving them the cold night treatment to induce the purples?

Try a better purple strain than Mexican, its bloody terrible.

I use these because of the availability. I live right by the border so i get my stuff pretty fresh and dirty cheap. I wanted to get a couple of grows on me before i invest on some dutch seeds tbh. Being that the weather is agreeable right now, i was wondering if giving them some cold air would give them a purple tinge.

Sounds like a plan bro I would grow and see although some strains may mot turn purple even if exposed to colder weather also u could shock the plant so becareful anyway try it and see

Im growing mex bag seeds right now they are about three weeks from flowering, im gonna put that one to the test because where im at is pretty chilly at night so hopefully purple bud

I'm doin this now and temps at night for me range from 58-62 and I'm in 5th week of flower and have more purple coming in everyday, and the buds look much better then the bag they came out of. You'll be surprised how nice hey look when you actually take care of them.

I think i overshot my window, im starting the 7th week in 2 days

Can anyone confirm or deny this?