Hi guys, the little one grows well and very quickly, I made LST in the first week of flowering, now it has risen a lot going almost 20 CM away from the "LED QUANTUM" lamp, do you recommend me to raise the lamp ?.
Every light is a bit different. if node spacing wasn't stretched or too tight, i'd say ou have it where you want it.
Later in bloom when trichomes come out more -- use those as another guage to determine if it is "too close". If development looks better a few inches below top colas, then you likely are evaporating them off the top -- development should occur top-down.
Anyway, that should help you along the way :)
20 cm is pretty close. You maybe ok at that height but are more than likely going to stress the plant. If you place your hand plan side down over the top colas, do you feel your hand warming up? If so, 12 hours of direct light like that can stress the lady out. Also it’s your first two weeks of flower expect height to be increasing up till your fourth and even 5th week of flower.
If you can tie down the tops abit to get 30 cm of clearance id do so. My plant in my current grow shot into my led over night and has taken some burn and heat stress because of it. Take a look at my flowering weeks 4/5/6 to see a concrete example. Good luck and happy growing.