Different strains mature at different times. Some as early as 7 weeks, some at 11 weeks. If they're all the same strain they should all mature at about the same time give or take a few days. Watch the trichs and use that as a judge as to when to pick.will some plants mature faster than the normal 8 week harvest time in a sea of green? where i've read it says get good at picking early flowering plants.
Check pg 5 of my journal. Technically it isn't a SOG because I didn't lollipop them (cut off all branches except the main cola) but I flowered small clones (6") and have a bunch of colas.Do You have any pics? I have heard of a sea of green but never seen one.