12/12 or 11/13 ??? please list pro’s and cons’
pro’s (11/13)- save electricity (lower bill)
plants finish 1-2 weeks early
plants root faster (plant need 13-13.5 hrs of darkness to start rooting reason why plants can be harvested early
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That’s one of those “that depends” answers…
Tropical Sativas do not see a great deal of variation so to force them into flower 11/13 works.
Moving away from the equator you see greater and greater variation in sun hours. Plants in these environments will flower reliably at 12/12.
Cheers
G
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I’m currently doing 12/12 just in case my pure sativa landrace cross wants to go buck wild and explode in size
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A little off topic but if I’m growing outdoor will a porch light completely screw me?
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Lately, I’ve been going 12 /12. To get them flipped, then after they get going, with some hedgehogs up to 13/11 until about weeks six then start stepping it back down.Makes for a much nicer Bud, much more resinous and dense
mammoth lighting did a lot of research on it. Check out the research
Give it a try 
A porch light may interfere with them flowering.
A lot of growers in other countries, use dim lighting to keep the plants in ther fields in veg on a gas lantern schedule with one hour of dim light in between the dark period it works quite well
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Not really an answer-able question. Hours and intensity can differ and yet give the same DLI.
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If you can read the fine print on a magazine or newspaper page at the plant, then possibly yes
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Yea !! forgot about Sativa vs Indica flower times , great information !! Thanks members for your take !
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Depends on the intensity of your light source. Something with a very high ppfd will allow for longer lights off period with better results than something with a lower DLI that would benefit from the extra hour of light. It’s about how much light is getting to the plants while lights are on and a stronger light delivers more photons than a weak one.
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Totally agree, I’ve grown plants that did better in 12 hours of gentle light, and then plants that wanted 11 or 10 hours of warm/high intensity conditions and then a cold night period. Skunk types tend to be that way, imo
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I’ve done a full grow on 11/13 and it gave me smaller lighter wispier buds than on 12/12 I won’t do it again. In fact increasing on hours to shorten grow cycles is up my alley now. Using far reds to help plants go to sleep faster using the Emerson effect. I’ve made runs using far reds for 15 min at lights out then after they’ve set to flower I went 12.5/11.5 then to 13/11 - 13.5/ 10.5 - 14-10.
Without controls I have no way of knowing if it had any real effects but I finished in 9 weeks without hermies or week buds and it was a fun experiment.
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I usually do 16/8 in veg and 11/13 in flower, only for those couple extra hours of electricity savings.
My absolute main goal for growing is “spend as little money as I can (without badly cutting corners) to achieve the best results possible”.
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also “gentle” light is good for terpene’s as were high intensity light can reduce terpe’s effects
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This was left as a draft lol… Could also either reduce lighting or lighting time towards the end of flower to preserve terpenes
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I like to start doing both around week 6. Ish
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I wouldn’t wanna risk it if I don’t have to.
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I had asked questions about the Emerson effect in a thread I once had after seeing a video on it using a far red puck. In theory you would think the more light you are getting to a plant the higher the yield would be. I just happy to talk to someone who was actually successful without having there plants reverting back to veg.
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I have 3 of the far red pucks from Rapid Led and 2 Spiderfarmer Glow 40’s. I use them intermittently through my grows for 15 min at lights out only. That’s enough to give me what I want. I can only do that with them in veg for 1 week or they stretch more than I can handle, I use them again after 5 weeks in flower and the stretching is done for the most part but just for the same 15 min at lights out. My hope is it still helps stretch the buds and not the stalk. So far so good my last crop is now being smoked and buds are hard nice smoke were some of my best. I’ll keep playing with them.
I just bought some Blue 450nm bars I’m running now in flower at 2 weeks with lights on to help compress my stretching from the far reds. I’m also running a new Green 550nm light…lol…why? good question my wife says what no yellow?..I’m looking at Deep red…why?..lol
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