i have done a couple of "original blueberry" from dutch passion which where feminised.from what i learned if you keep the temp and humidity ok there aint a problem.they need training as they get huge if you dont flower them quite soon mine tripled in size during flower.i downed the humidity to 40% during flower and the temp was 80 ish.i grew it alongside chronic and the blueberry was like rocket fuel compared to it.ppm was at 1800-2200 near the end of flowering and was no nute burn.between 10-12 weeks flowering.make sure it is cured properly and the taste is awesome.