Purple Queen (Newcomer)

Dear community, this week has made a great impression, because the plants have laid a significant growth spurt. I think they look very good, a strong green color, thick trunk and a nice pleasant smell. Due to the cooler temperatures, my problem has dissolved into air and the circumstances for the plants have improved significantly. The amount of fertilizer I have regulated slightly down and think I get good results on this way. I've read in most grow guides that the plant should be flowering after four weeks, but I've decided to wait another week. How far does the plant continue to grow during flowering? Had a size of 50-60 cm targeted to switch to the sodium vapor lamp. Today I will install my automated irrigation system because I'm traveling professionally for the weekend. I'm almost not looking forward to the nice hotel or congress I'm attending, but to see more about how much my little ones have grown. Best regards, Knobination