Its close to switching over to flower and have noticed this since Sunday. The plants are all growing in soil , organic promix , I make sure the ph of my water is right all the time. Plants are under 2 x 300w cfl dual spectrum lights which i bought from futurama .
I monitor the environment as well. Its been a bit cold these last few days so I added a 300 hps light just get the temp up in the room...
Thats about it