18/6 vs. 24/0

[Grateful D]

I am on my second grow, and i was wondering what peoples thoughts were on 18/ vs 24/0 veg photoperiod. I have read that marijuana plants can handle and utilize 24 hours of light. During my first grow i used the 18/6 and the plants seemed to grow faster than they are on my current grow, which is using 24/0. This could very well 1be due to my impatience and my imagination. I would like to know everyones thoughts and experince on which to use. If its not going to be benifical to my plants than i am just wasting electricity. Any enlightenment on this issue would be very much apperciated. Thanks!

 

[cannagirl]

Well I use 18/6 for my mothers and 24/0 for my plants in veg. Not sure why I started doing thing this way but it works, so if it aint broke dont fix it I guess

 

[RetroGrow]

It has been demonstrated that the optimum photo period for growth is 20 hours light, 4 hours dark.

 

[cannagirl]

^^can you link that info please, I would love to read more about it.

 

[Grateful D]

yea a link to that would be great. Also is it ok to switch from 24/0 to 20/4? wothout getting my plants messed up and confused? thanks guys i really apperciate the quick respnses!

 

[Frozenguy]

Yeah retro grow if you could show a link..

I've always done 18/6 because I think its very important for the hormones in the plant and the physiology.

There is success with 24/0 though.

 

[buddin_904]

IME 18/6 or 20/4 provided better growth than 24/0....its my understanding that at night they can proform biochemical processees using their stored energy from day. i think that the growth at night is very substancial.....you can even see it when the lights come on they have a yellowish foliage in the middle of the leaves. night growth

 

[Krull]

This has been asked million times. Use what works best for you mate.
24/0 can be useful to shock plants that go outdoor in to flower.

Peace

=K

 

[enjia2000]

I like 18/6 because it gives my box time to cool off.

 

[NHMI]

Well logically plants would need a dark period to rest a lil or whatever they do in the dark. I have vegged in 24hrs and the ones at 19/5 were taller and healthier looking IMO...

 

[chizzleonetime]

lol the plants end up taller because they strecth more when there is no light(on 24 plants end up more compact) rather simple , if u can keep the conditions perfect, IMO 24 shits on every lighting schedule for veg , but is alot harder to keep and requires alot more work ie watering every day , dont beleive me ? il prove a point and do a side by side with cuts , i actually read a document recentely stating that plants dont need any rest at all
vegging takes too long on 18/6 im sorry bullshit people trying to call that one better, not really tried 20 on 4 off but willing to bet 24 is better

 

[TheCheeseMan]

i use 24/0 for veg, that way you dont need a timer

 

[chizzleonetime]

'Well logically plants would need a dark period to rest a lil or whatever they do in the dark'
why would they ? in flower yes but veg why ?
hahahaha cheeseman thats how i ended up on 24 , my timer broke so i just didnt replace it and the difference was big

 

[Dreamz_Of_Green]

I am on my second grow, and i was wondering what peoples thoughts were on 18/ vs 24/0 veg photoperiod. I have read that marijuana plants can handle and utilize 24 hours of light. During my first grow i used the 18/6 and the plants seemed to grow faster than they are on my current grow, which is using 24/0. This could very well 1be due to my impatience and my imagination. I would like to know everyones thoughts and experince on which to use. If its not going to be benifical to my plants than i am just wasting electricity. Any enlightenment on this issue would be very much apperciated. Thanks!

my thoughts is on the veg proccess this did nothingbut slow me down in my 12yrs exp. i always go 24/0 in veg

 

[Kalicokitty]

I switched to 18/6 a few years ago, didn't notice much difference in the plants, but I did in my electric bill

 

[simon]

I run 24/0 for the first 2 weeks, then switch to 20/4 for the rest of veg. I've run 24/0 for the entire veg, but found the plants to respond better with some dark - less problems, more vigor. YMMV

Simon

 

[rafterman]

Yeh this debate seems to continually resurface like the Creature from the Black Lagoon.

I'm a 24/0 lights on during veg grower but can't say i've ever experimented with 18/6 or 20/4 format.

Seems what I've heard and read cannabis doesn't need a latent or dark period at all during veg but I'm sure there are many who disagree.

 

[tokinafaty420]

I use 18/6 b/c it saves on electricity and I have never noticed any difference between their growth and those under 24hrs. The only thing I use 24/0 light for is while I am cloning.

 

[chloro87]

i have been using 18/6 .. i have done 24/0 and 20/4 to.. my method is i use 18/6 because it may be less dramatic when you go to put them into 12 12 and sex or flower

 

[iSMOKE.KUSH]

i have been using 18/6 .. i have done 24/0 and 20/4 to.. my method is i use 18/6 because it may be less dramatic when you go to put them into 12 12 and sex or flower

i use 24/0 veg and i've done 18/6 and 20/4..

with 24/0 they just grow out of control and bushier. every day they seem way bigger..they just take off..

in my opinion i want the switch to flower to be more dramatic..i think it speeds up the switch from veg to the bud making process..