I am trying my luck with a photoperiod girl scout cookie plant. I had created a manifold and made it to eight growing stems or (whatever you call them), when I moved the plant and the main stalk split partially. That was last week, week four and the plant has kept growing but I had used a twist tie to hold that part together. Now, it is still not repaired, but I am still having growth. I stuck some popsicle sticks along its side. My question is now that I am in week five when should I switch the lights? I was expecting to week 7 or 8. The plant can only get so tall in the space it is in before it will hit the light. I read it would double in size or get taller.