Agree with tex. Autos are unpredictable but I always figure 90 days is what it takes. Indoors, a high quality light will get you to harvest quicker. Hydo helps too but autos are not as dependable as photos.
I think it’s a market game, more people would just stay with photoperiods if they have to wait more than 8-10 weeks from seed. So they all just list the flower time.
Agree with tex. Autos are unpredictable but I always figure 90 days is what it takes. Indoors, a high quality light will get you to harvest quicker. Hydo helps too but autos are not as dependable as photos.