If he was in late flower in June, let's say he was in week 10/11 of flower and he was still flowering till now, that would be a 20 - 21 week flower cycle..... that wouldn't work for any cannabis plant.
@GuTs this person could've grown the plant for 10 months eeeeeeeeeaaaasily, nothing strange about that, but if that where the case the plant would not have looked like that back in June already.
if it was a 10month project and he only harvested now, back in June the plant shoul've still been vegging.
you can keep mother plants in veg for multiple years, there is really no limit on time you can keep/veg a cannabis plant for. I can veg for 5 years before I flip to flower, but what we focus on here is the fact that the plant was already so late in flower 4 months ago, because as we know we can push the veg cycle any which way we want, but when it comes to flower you have that 9 - 13 week window and done. you can't push flower cycle for longer than the plant dictates.