Flowering dark periods

[Volker]

Im really confused on what I have to do to prepare for flowering. Do you have to leave the lights off for more than 12 hours? then switch it to 12/12?

No special prep needed, really. Just switch 'em to 12/12.

Just make sure that the dark is totally dark. A streetlight shining through a closed venetian blind is enough to retard bud formation severly. A pinhole in the light curtain between the veg & bud rooms can stop a whole cola cold. Anything brighter than the light of a full moon can stop budding entirely if that exposure during darkness is prolonged.

After light change, it can take anywhere from 3 days to 3 weeks before the plant shows any kind of bud activity. Then another 5 to 14 days of pre-flowering before it starts making those fuzzy white 'fros. Then however long it takes your particular strain to finish, which can be anywhen from 5 to 12 weeks.

Side note. Some growers veg with 24/7, others 18/6. Some do 24/7, a week of 18/6, then 12/12. My own personal experience is that plants that veg under 24/7 tend to respond quicker to light changes. But this also varies with species/strain.

Volker Reviewed by Volker on 01-10-2007. Flowering dark periods Im really confused on what I have to do to prepare for flowering. Do you have to leave the lights off for more than 12 hours? then switch it to 12/12? Help appreciated. Rating: 5