12/12 from seed vs plant maturity

Ok I've done enough research so don't tell me to stop asking the same questions. All the posts about 12/12 from seed ive seen are all about "how much can you harvest" and bs like that.

I was under the impression that a plant is still vegging until it matures (preflowers and alternate nodes) and therefore until then the 12/12 from seed will cause worthless stretching, and youll probably be using the wrong nutes.

However I've also heard that it takes about 3 months for the plants to start showing sexual maturity, but obviously you don't have to wait that long for them to start flowering if you run 12/12 from seed.

So I'm guessing that using 12/12 can force sexual maturity to some extent? How long should you veg for to make sure that your not wasting "veg time" but still harvest as early as possible? I was thinking of 10 days to 3 weeks veg, can I expect pre flowers by then for an indica? Or will putting it on 12/12 force pre flowers also?

Is it possible to complete a grow from sow to harvest within 3 months???

yes it is. put your sprout under 12/12 from the gitty-up. you wont get as much.not even half as much. also depends alot on strain and pheno .not worth it really worth it imo. just fun though.

also i forgot to mention that there are strains out there that are ready in 8 weeks no matter what anyways . what are your concerns power consumption? or impatience?

If that's the case why not grow auto flower strains?

joeyjoejoe said:

yes it is. put your sprout under 12/12 from the gitty-up. you wont get as much.not even half as much. also depends alot on strain and pheno .not worth it really worth it imo. just fun though.

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I think you people don't understand what im saying... yes you CAN put it under 12/12 as soon as it sprouts, but it won't be mature yet.. you cant tell me that a 3 inch seedling will start growing buds straight away, it will just try to veg with 12 hours of light (stretching).

I've read a grow where a guy only vegges for 10 days, then flowers for 78 days.. he got 7.26 ounces from ONE plant in 3.14 months. But the question is... was the plant even mature enough to produce flowering hormone after those 10 days? Maybe its not ready to flower for 30 days, and he really just vegged his plant for 20 days under 12/12.

Clones are a diff story since they are already mature, know wha I meen??

I got 2 blue dreams 12/12 from seed they have been showing hairs for over a week n I agree its fun threw em n while I had 3 flowering mid grade bagseed lol they have really been taking off got one topped one Lst

are you trying to figure out the minimum time you can veg a plant and still get good results ?

syphex said:

I think you people don't understand what im saying... yes you CAN put it under 12/12 as soon as it sprouts, but it won't be mature yet.. you cant tell me that a 3 inch seedling will start growing buds straight away, it will just try to veg with 12 hours of light (stretching).

I've read a grow where a guy only vegges for 10 days, then flowers for 78 days.. he got 7.26 ounces from ONE plant in 3.14 months. But the question is... was the plant even mature enough to produce flowering hormone after those 10 days? Maybe its not ready to flower for 30 days, and he really just vegged his plant for 20 days under 12/12.

Clones are a diff story since they are already mature, know wha I meen??

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I've never been stupid enough to try flowering a short day pot plant from seed. And yea there would be a transition time going into flower from seed. Screw the yeild, its the potency. Why DO you think auto flowers aren't that potent? They never get the veg time to build up cannabinoid levels. Like that other dude said if you wanna flower from seed there are a whole species of cannabis that will do that for you.

There`s auto flowers that will get well over 20% thc that`s not too shabby

Most autos take 2 weeks to show sex

Least amount of veg time I`d go with is 2 weeks but a month is better.

3 months and 5 days will get you great results with sannies shackzilla which is a sativa strain. Do 18/6 for five days and then go 12/12. Even with only a 5 day veg time the shackzilla sativa strain will be 5 feet tall and you'll get a great yield from her. He actually tells you to do a short veg b/c you'll run out of headroom in most tents.

During weeks 4 and 5 of flowering the strain goes into overdrive and can grow 3 inches in a 24 hour period. Sannie has a video of his short veg time grow on his site, you should check it out.

dont worry op i know what ur asking. since pre flowers start around week 3 on 12/12 from seed id say 18-6 to 20/4 is better for 2-ish weeks then 12/12 because even a definitly mature enough plant takes a week of 12/12 to show hairs. i hope that made sence im 2 sheets to the wind.

i think op wants to get all the benefits of 12/12 while not wasting 6+ hours of possible light since obviously a seed wont pop out the ground with pistils/balls

WTF?

a 3' seedling will flower if its only got 12 hours of light
it may only reach a foot by harvest and most likely a small yeild

haha left the screen running and forgot to refresh... a little late i might say

botanistjjj said:

dont worry op i know what ur asking. since pre flowers start around week 3 on 12/12 from seed id say 18-6 to 20/4 is better for 2-ish weeks then 12/12 because even a definitly mature enough plant takes a week of 12/12 to show hairs. i hope that made sence im 2 sheets to the wind.

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Yes thats what I was asking and hoping that 3 weeks veg time would be close to optimum, thanks for the info ill take it into account. During the last week of veg ill transition by flipping to 12/12, considering 24/0 for veg though since my research indicates they don't need a "rest period". Hahaha nice, happy toking if I had rep left it'd be yours.

I have some NON-AUTO Blue Mystics ready to germ which is an indica plant so hopefully will help reduce flowering time also (Average 55 - 65 days), but I guess 3 weeks veg isn't near enough recovery time to employ the various techniques I've been extensively researching (Fimming, topping, LST, HST, Stem crushing etc... I want to do them all and see which are better!)... The reason for the 3 months is a purely time constrained one (im moving out), at 21 days veg and 65 days flower thats almost exactly 3 months which is perfect.

botanistjjj said:

i think op wants to get all the benefits of 12/12 while not wasting 6+ hours of possible light since obviously a seed wont pop out the ground with pistils/balls

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Exactly. What are the thoughts on lighty crushing the stems of the seedlings after about a week starting from the bottom up to make the stems thicker?

do it up to a week before flowering
be careful though its still a seedling

TerrenThingsUp said:

do it up to a week before flowering
be careful though its still a seedling

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I know, its scary, I can just imagine it limping over and never getting up again. I might just do it to a few and hope they survive. This is just a seed run really... I hope the seeds produced by minimal vegging don't alter the flowering time genetics or something lol...

Ok this is my secret idea...

Ideally with a longer veg period I think I would want to 1.) start stem crushing first since thats when they are most supple and sets up the improved nutrient passages as early as possible, then 2.) some LST while it recovers... then 3.) top the bastard to grow some twin nutrient highways of doom... 4.) FIM those to get a cascade of bud sites, which will be 5.) HST snapped over to keep the height down, all the while crushing the stems to build some muscles. I might even sum it up with some experiments by making incisions along the outer xylem to improve phloem uptake. Just an idea I had to use all the known techniques in the right order...

joeyjoejoe said:

WTF?

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Have I lost you yet?

3 weeks of veg, 8 weeks of flower...why not just do it the way its been done....if you planning on do all that training why not just give it the 3 weeks of veg to show sex, if your worried about stretch get over it, the plants are gonna stretch reguardless, its all about using that stretch to your style of growing, some people supercrop some lst some top, some do em all...i do all over a 4 week vegg from seed , 3 weeks from clone, and end up with 4-6 foot monsters every time.....i supercrop the shit outta my girls to keep em at that 5 foot mark but i let em be as soon as nugs start forming cause then your looking to adversly affect yeild...peace

syphex said:

I've read a grow where a guy only vegges for 10 days, then flowers for 78 days.. he got 7.26 ounces from ONE plant in 3.14 months.

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You can't really control how long it takes for a plant to flower like you can with a plant in its vegetative state. So, you couldn't grow a plant for a week then make up the lost yield by flowering it longer. Eventually, the trichomes degrade and you'll have poor quality bud, or the plant will die. You would have to know the characteristics of the strain you were working with.

Sativas have longer flowering times and get tall. They would be a good candidate for 12/12 from seed. By cutting out the veg time, you could harvest a shorter plant sooner.