What temp turns a plant purple?

[TheShastaCoMan]

Now for a valid answer.....below 50 in the roots.

exactly, i was going to post that also.

if you have a plant thats prone to purpling in cooler temps and your growing in a climate that doesnt get that cold, you can take a bag of ice and pour some in the pot during lights out. also reduce the daytime temps in your grow room to below 55 degrees. in a couple of days youll notice your plants turning, and once they start they dont stop.

TheShastaCoMan Reviewed by TheShastaCoMan on 09-24-2010. What temp turns a plant purple? I've been reading around the forums and I noticed something about when a plant gets too cold it goes into shock and starts to turn purple. And I was wondering at what low temperatures do plants start to do that? I really don't care about what color my weed is, as long as it gets me stoned I'm happy. But when people see purple weed they instantly think that its some super dank shiet, hopefully my weed will be dank regardless but it would also be cool to have a few purple plants :smokin: Rating: 5