I just pop pairs of seeds EVERY 2 to 2 1/2 weeks , so I cycle grows.
Once the autos , hit preflower ( day 30-40ish ) the next two are running the last legs of veg. " Average " auto days will be under 90 days total.
Very few strains ACTUALLY FINISH as stated. The breeder estimates are for
" OPTIMAL GROW CONDITIONS " mean lab controlled , same as they grow for seed breeding and stable product.
So .... We have to let them finish .... When they finish. The breeder info is a guide only.
Heavy Sativa crosses WILL REQUIRE LONGER to maximize ripeness. Some can run 11-12 weeks or so. Indica run can also linger - I harvested one on day 77 , so triche check is the ONLY TRUE SCALE to go by ..... Not how long the grow.
Modern autos are much more potent and worth the effort compared ... Say 15 years ago or so. As long as you give her the best conditions right from seed to the veg stage then the rest will pan out. I begin LST starting about week2 of growth and let her shape herself.
Some may preflower faster than others ... There is nothing you can do to stop it.
Flowering :
Once see sex and begins preflower , THEN begin counting from there.
No one plant finishes the same , I cut some down on day 77 ( 11 week ) , some on day 85 , some on day 66 ( 60 day wonder / white dwarf ) .