12 Hours at different times

WutangFinancial

Active Member
Are my young ones going to be ok even if they get their 12 hours of light all at one time, but having the darkness period starting at different times each day?
 

krillianred

Well-Known Member
if you had 12 hours of light, but an uneven amount of darkness in different intervals, im told the plants wont flower at all.

someone correct me if im wrong.
 

gardenandcats

Well-Known Member
There best on a timer 12 hours of light then 12 hours of dark at the same time each day.Other wise they are stressed and might produce hermies.
 

Puffin Afatty

Active Member
the 12 or more hours of dark are needed to flower...the dark needs to be continuous...interrupting the dark for as little as a couple minutes can stress the plant...interrupting the light cycle is not so serious...
 

WutangFinancial

Active Member
Hah, ya sorry I was kind of retarded when I wrote that.

I meant if I give my plants the full 12 hours of darkness, uninterrupted, but start this period of darkness at different times each day, is this alright?
 

krillianred

Well-Known Member
if you start different times, it wouldnt be 12 hours of darkness each time.

unless youre talking about uneven amounts of daylight.
 

fishindog

Well-Known Member
ya then ur daylight will not be a full 12 hours.....are u wanting to do an experiment or something?
 

diesel mecanix

Active Member
hmmm I think that would cause stress. If I understand you right I believe that's how they make feminized seeds. Causing stress by messing up light cycles makes the plant thinks it's going to die....then produces seeds. Correct if wrong*
 

jondog123

Well-Known Member
If I have my music on while my plants are sleeping, will this affect their grow cycle? Just wondering because my plants are trying to sleep and all, but I listen to my music very loudly...

:bigjoint:
 

email468

Well-Known Member
you want your light/dark cycle to add up to a consistent 24 hrs and for flowering a minimum of 12 hrs uninterrupted dark is key.

don't know about the effect of music on plant growth but hopefully the squeal of a fan has no ill effects!
 

Ribbet29

Well-Known Member
I meant if I give my plants the full 12 hours of darkness, uninterrupted, but start this period of darkness at different times each day, is this alright?
If what I think your talking about is correct, its the exact same thing as growing outdoors. Outdoor plants dont get exactly 12 hrs of sun and 12hrs of darkness (which many people think you must have to flower) and the sun rises and set's at different times every day all season long
 

email468

Well-Known Member
ribbet29 is correct (unless you are on the equator and even then 12/12 is a limited time) BUT indoor growers have found that 12/12 consistently flowers current strains with minimal hermaphrodites (something the sun doesn't care about). Also note that while the darkness/lightness changes - the changes are consistent (days longer towards summer/shorter towards winter) and the darkness/light equal 24 hrs. So if you want you can start flowering with 12/12 then add a minute of darkness to both the end and the beginning of your dark period. So in a couple of months you'll be on a 14/10 cycle which is just fine (increases time to harvest but should increase yield).

If you are growing indoors and can afford to experiment - give your idea a try.
 

jondog123

Well-Known Member
don't know about the effect of music on plant growth but hopefully the squeal of a fan has no ill effects!
Yeah, I have that too. haha. :joint:

May we ask why you would want to do this? I like my timer. It's pretty reliable and has a lifetime warranty.
 
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