Anyone tried 13+/12 or similar?

Hey guys, this might be a total noob question (I’m only first-year in Hort), but:

If cannabis is a critical night-length plant, would I be able to give my baby a long daylight 13h+ for extra photosynthesis, and still let her flower in twelve hours of darkness per cycle?

I tired looking it up on google and in Bergman’s, Cervantes’, Iverson’s and McCormick’s books. Nada.

My botany textbook is also unclear on the topic.

If any of you have tried that would be great. But I’m going to go ahead and try with one of my lovelies, but I don’t have any others even near flowering, so I can’t double-blind.


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