well the temps as of late have been in the 50s at night sometimes upper 40s, but its just just the leaves that are turning purple its the calyx's and everything else. some of the seeds i started were from last year, and i called it 'the purple plants' because a heavy majority had reddish purple stems all through veg and as soon as they started flowering certain other parts turned purple as well. we also have an old school skunk strain that my dad got ahold of from a friend (interbred and cloned since the late 70's by the same man) and those have started to turn colors too, mostly due to the temperatures but its not as purple as the others. i think most are sativa dominant. i may go home this weekend to check on them but i might just leave that up to my dad and go home for partial harvest the last weekend in sept. either way ill provide pics.
thanks for the feedback