All these plants are 8 week flower types however these are in their 6 week of flower and not sure how long they have as the trichomes are still clear and not a cloudy/amber one in site?
The last picture about 25% of the hairs are orange on the last 3 there are barely any at all. The last picture is a blue amnesia autoflower and the middle is a cutting I was given and told it's a 8 week flower type. The autoflower was planted 8 weeks ago meaning it should only need 2 weeks left according to the place I bought it from.
Thanks heaps and I understand seedbanks timeframes are under perfect growing circumstances but any help at all or estimate would be great so that I know when to start flushing them.
Have you looked at the trichomes under a microscope? Clear, cloudy, amber? I go by that more. I like my buds a little overripened (more amber). I'd say two weeks. Maybe three. If you like cloudly. Maybe just 1-2 weeks. If you like clear, maybe now or a week (judging from the last photo. It's hard to tell too with HPS light.).
Check the trichs for cloudy after more like 80-90% of the white pistils die back and turn brown/ orange. And only on the calyx. Not the bud leaves. They turn amber early usually.