before my plants flowered I trimmed the lower fan leaves and thinned the center of my plants ... then they had more to send to the growth tips. Will use the leaves for compost or butter... still have till sept ... here in Ontario. I have a 5' that raised the same question but it is starting to...
My green house 8 x 12' runs temps of 64f to 100f with 2 doors open and 3 top widows when hot or humid. I run a box fan on 1 to move air. Mix of sativa and indica . The plants are doing very well. The temp inside the greenhouse never feels hot to sit in. I planted in late may early june this...