This may seem like a stupid question, but when a breeder states that a particular strain's flowering time is approximately 8 weeks, does that mean 8 weeks from 12/12 or 8 weeks from the appearance of the first flowers?
Flowering starts the moment you switch so I guess they mean 8 weeks from switch. However, breeders most likely quote time needed to finish in best growing conditions possible so an average grower with less than perfect setup may need a bit longer.
The general consensus is that flowering begins 1-2 weeks after you switch to 12/12, for the hormonal transition period the plant goes through from veg production to flower production![]()