After some time has passed since the beginning of this cultivation, I can make some remarks.
All plants were treated equally from the beginning until now... Same light, same substrate, same watering and fertilizers.
I don't know why the ETHOS plants and one Pamir Gold didn't follow the photoperiod and flowered early. Here in the Southern Hemisphere, tomorrow, December 21st, we have the longest day of the year. So in theory only now the plants would start to bloom.
Does anyone have any suggestions as to the reason for this behavior?
It is worth mentioning that where I live we have no influence of external light. In the middle of the forest, there is complete darkness...