Quote Originally Posted by Lit Up
IDK if it's me or what, but you shouldn't be able to tell your sex yet. I'm just south of the Iowa/Mn border and flowering starts in mid-August. They could be showing preflowers but I'd wait anyways, because you never know for sure until flower.

Even then you will have, at lastest, 3 weeks into flowering before males release pollen. I'm just trying to help a fellow midwester out, there is plenty of time before flowering starts. I've had plants that look male and turn out female. But thats just me.

Good luck, I'll be creepin on you thread from time to time.
i totally agree with you cuz i know none of mine showed any signs of flowers till mid august...and to offer my opinion on why the leaves are curling and stems are turning purple i would say nute over dosage...at least thats what my marijuana bible would say but excess sun exposure could be another possibility. From what i read though it seems like a nutrient build up and a good dosage of plain water could be the solution to your problem.