Forget the triches on the leaves , that is only part of the puzzle . Triches at calyx where the THC magic happens is where to check ( on the actual bud ).
You mentioned - 58 days from germ . If you flowered at 30 odd days or so ( common with autos ) , then you are only in flowering an ACTUAL 28 days or so ..... Way early.
Forget the breeder time - it is listed for OPTIMAL GROW CONDITIONS ( like lab study ) .
Not like the regular guy...... Well , unless you got a killer setup ( balanced temp and humidity THROUGHOUT GROW , monitored feed , exact watering needs , full spectrum light conditions that mimic mother nature , etc. )
But for the rest of us , we will run longer than advertised.
So called 8 week strains are ACTUALLY 4-5 week germ to veg growth
Then preflower around 30-40 days in .
Flower transition in a week
THEN ...... FLOWERING .
I only count the actual flower transition time to harvest.
Since AUTOS are hardwired to go from seed to veg in a blink of an eye , you cant prelong it like a photo seed. So doing a count FROM beginning flower THEN counting weeks in will be more realistic.
An easy way is to grab a calendar -
Mark each week ( NOT DAY ) as WEEK 1 , Then WEEK 2 , etc.
By that time you can better judge your girl.
Getting back to yours .... It will go longer , it needs to get to swelling and adding bulk.
Those pistils will recede and continue to change , some strains will have white pistils at end too. Let her keep going.
