shasamanswered grow question 4 years ago Higher temperatures will stunt the growth of your plant beyond 30 C especially when they’re young. I had a similar issue and had to keep the AC on along with a cooling fan next to the tent. Remember that the temperature in your grow area is pretty much the temperature in the room they’re in so try to keep it s cool as possible - 35 will not get you good results especially during flower where temperatures should be around 20-24 for optimum results. Happy growing :)