1st grow slow growth?

My longest vegged auto was 9 weeks, then it only started to flower. You have 3 photos and one auto. No smallest doubt. 12/12 will only force them to flower, nothing else.

You haven't delayed these that i can tell -- like over defoliation or excessive pruning etc.. generally unstressed plants... just genetics. Breeders take liberties with the estimates. You sell more seeds if they flower faster, eh? Truth is for the most part fast just means it flowers sooner and has a reduced yield potenetial than something that takes longer. There are other variables at play, but this is a strong correlation. comparing a heavy yielding genotype to a larfy trashy bud genotype might flip that script, but that's not an honest comparison. figure 2-3 weeks of vege before an auto flips itself to flower (about 7 days before you see preflowers is a good guesstimate of flip to flower - this would be a better apples to apples comparison to flower time of photoperiods, if more familiar with that timeline)... so, they also tend to fib a bit on actual flower phase time by not counting the days until they can see pistils, which is at least 1 week after the plant biologically shifted to flower phase. It's easy to say autoflowers are "faster" if you cheat, lol. They are not faster. the same variety exists. People just count from the wrong point and compare apples to oranges, which is useless. it's probably not growing "slow." It's just veging longer than the other plants. it may also have a slightly longer flower phase, which is a different variable to account for, but you won't know about that until you finish.. these clearly entered flower later.

A couple of those plants look a bit hungry. Try GH Flora series "aggressive feed. 8.5 mil of purple, 8.0 mil of green, and 6.0 ml of pink on your next water day. GH Flora is an excellent choice for growing in soil but if you read the charts, aggressive feed is for soil grows where they get watered only every 3-5 days. Repeat if necessary. Then move to using your bloom schedules for future feedings Low feed schedule is actually for coco or hydro where the plants are in nutrients every feed cycle.

Also. Get a diary started.

You answered the question pal. Autos are just funny bastards at times. They do what they want. Vs listening to the environment when we flip into flower. 1st grow looking the colours and structure well done. You'll probs be alot happier in another few weeks that they look longer as they are huge at the min. Keep it up mate don't worry.