when to go 12/12

[Hangshai]

I'm sure other users have said this already, but plants need space for their roots if you want them to grow. WHat I do is put them in to 5 gallon buckets/bags and then let them get between 24-30 inches tall. Plants will still get taller during the first 2-3 weeks of flowering as well, and then they end to top off and only the buds grow. Just depends on how much you want to yeild off your plant...