sugar punch help anyone grown sugar punch pleaee stop and look for a sec

Ok here's my prob,I've got three plants going and one of the three has purple stems on the leafs, and I've read that could b a def or it could just be part of the genetics so my question from here is pretty easy when u grew your plant did it have purple in it or does it sound like a def. Pics r on my other thread, the leaves look fine but I'm curious about the purple cuz i'd like that purple gene lol