Is there optimal amount of light that you can give for photoperiod plants? 18/6 to 24 hours? And when to swap?

Jbulls1979

New Member
Just like thhe title says, how much light would be the optiomal in the start to start growing for photoperiods, or is there such thing?

I've always used 18/6, but i've seen people using 20/4 or even 24 hours at the start. I'm already at the second week with 18/6 and they seem to be at least growing. But would giving more light give better results?

And if you give more light, when should you swap to 18/6 OR should i even run them higher for the full veg state? Shouldn't veg state always have 18/6 cycle with photoperiods or is my info incorrect (haven't read or studied growing much in a looong time), at least autos are different but i haven't grown in a while and never grown autos, so i don't know about them.

One thing i read that 18/6 is much better and gives you better root mass, less stress overall (breathing room to plants) and even swaps your plants faster to flowering. But that is a lttle bit bro science, but several people have said the same in some forum threads. So is 18/6 the king of lighting schedule? :D

And if you give your plants more light, does different states of germination matter until flowrering? Like should i be swapping the lighting schedule sooner than flowering state or veg state (if i go with more light)?

I have a couple indoor grows successfully done in the past (this is my third) with the 18/6 until flowering state, but i just want to know more about this topic if this is the right place to ask.

For curiosity, have anyone here done testing about this certain topic, if we leave out autos and just talk about photos? Thanks!
This has been debated to death. I tried using the 24 hour continuous vegetation cycle but I shut the lights off for 4-5 hours once a week just to kinda give the plants a break. I noticed that plants seemed happier especially on mother plants that were kept in vegetation stage for months. It seemed like just that short break once a week or so made a difference on how stressed out they looked
 

Star Dog

Well-Known Member
Like many others I've used 24hrs for ever without any problems, if you're having trouble with 24hrs it's a you problem.
 
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