Growing Weed 12 12 From Seed

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What do y’all think about starting seed on a 12-12 cycle from the beginning?? The 12/12 method of cultivation does not need any special care except changing the duration of its light cycles. The plants are still to be treated as… If you're looking to maximize your yields but you are limited on space, maybe it's time to switch from your… by twistedpurple

12-12 from seed??

Nice I got six I just started outside on a close to 12-12 cycle. The outdoor season usually will start to flower around end of month ,August September. So I’m hoping for something out of them. The four golden girls I moved indoor after being out all summer and put on a 12-12 cycle to speed up flowering time a little.

az2000

I’ve done 12/12 from seed. Growing this way implies a small growing space(?). I think an autoflower is a much better choice for that.

My 12/12 from seed was stretchy, produced 20g per plant. (I don’t recall. It wasn’t much). The plants didn’t look normal (they were lanky). They weren’t that small (they were tall for their proportions.).

Autoflowers would have been as tall (or shorter), but more fully formed. More like a bonzai version of a full-size plant.

The downside to autos is that people typically run 18/6 through flower. That’s 50% more energy and wear/tear on your light. You can do 12/12, but the yield will be reduced. Even at 12/12, I’m sure it would yield more than a photosensitive 12/12 from seed.

az2000

Update: I see from your 2nd post that you’re trying to get an early harvest (time-, not space-constraint which I responded to).

Autos are best suited for outdoor growing to get an early harvest. I think that and micro-growing indoors (implying no outdoor space, or wrong time of year) are the “valid” uses of autoflowers. (I put valid in quotes because many people just like to grow them. That’s valid too.). But, if you’re already growing outdoors, an auto would be perfect. Free light from the sun. It will be ready for harvest in 11 weeks. (A little longer than 12/12 from seed, I suppose.).

Mattyice

Yeah the girls indoor I started last Christmas inside then put outside for summer, then recently moved back inside to start flowering process. I just put some new ones outside to start and the light cycle will be close to 12-12 soon . I’ve done the autos before and liked them just have to do so many to get a big yield.

Seraphine

12/12 is good for sea of green method (SOG). I currently have an auto flower on 12/12 but that’s just because I had to throw her in my flower tent because of space issues.

OldManRiver

Fundamental response to “have you ever thought of” questions: We’ve been growing weed, lots of guys, for 40 years personally, and other guys longer than me. Methods that differ from the common methods, have undoubtedly been tried, and, if they worked, would have been adopted and become known and standard, if they worked better.

If your goal is to do well, it’s best to learn to rock the standard method before deciding to experiment too aggressively, IMO.

To your actual question, any plant needs vegetative size to create large flowers, which is what you want with pot. If the plant doesn’t have a certain leaf area, it can’t produce much bud. The leaf captures the sun’s energy, to convert into plant mass. Larger plants can produce more bud, because they have more leaf area to capture light to make plant stuff out of. Growing a plant in 12/12 from the start, the plant never enters the veg cycle to produce enough leaf area necessary to support a pleasing amount of bud.

BloodShot
OldManRiver
BloodShot

Good to know, so SOG can’t be accomplished from seed?
edit: doing a bit of research I have found that is more common to use clones in a SOG.
Personally, I like the idea of using clones.

MIMedGrower

Fundamental response to “have you ever thought of” questions: We’ve been growing weed, lots of guys, for 40 years personally, and other guys longer than me. Methods that differ from the common methods, have undoubtedly been tried, and, if they worked, would have been adopted and become known and standard, if they worked better.

If your goal is to do well, it’s best to learn to rock the standard method before deciding to experiment too aggressively, IMO.

To your actual question, any plant needs vegetative size to create large flowers, which is what you want with pot. If the plant doesn’t have a certain leaf area, it can’t produce much bud. The leaf captures the sun’s energy, to convert into plant mass. Larger plants can produce more bud, because they have more leaf area to capture light to make plant stuff out of. Growing a plant in 12/12 from the start, the plant never enters the veg cycle to produce enough leaf area necessary to support a pleasing amount of bud.

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In my experience that depends on strain and phenotype. I have grown quite a few different plants from seed 12/12 and with good light and a vigorous sativa leaning hybrid I have matched the yield of 30-45 day vegged plants of the same strain. Up to almost 5 oz on some heavy hitters.

Difference was the vegged plants had stronger branches every time and grew bushier. The 12/12 plants grow fewer leaves and much thinner branches. So they needed a lot of support to grow big buds.

Squatter indica wider leaved hybrids did not do so well. Maybe 2.5 oz on those.

Slow vegging plants will do like you say. But they need more veg time anyway.

I tried clones i eas running too. Pretty much the same results. Short veg fast growing plants like diesel crosses worked great and berry indica type plants much less growth and yield.

Thats my experience anyway.

aletheus

Im considering 12/12 from seed and giving her the colloidal sliver treatment. Since all im wanting is pollen from her, she doesnt need to get HUGE, but i may wait a couple weeks under 24/0 just to get her going before i put her under the flowering lights

dward

Every guide I’ve read always says grow it in veg for 2 – 4 weeks or until it has a at least 2 node branches. I was thinking of starting a 12/12 grow from seeds as well but like u said its only good to grow out a batch of seeds for different phenotype and breeding. U will lose yield though, but for hybrids that grow vigorously in hydro, it could work well.
I would give them 1/4 strength nutes or less but depends on the light u got. It could be even faster than an auto if its a fast flowering strain.

Mattyice

The little one is rutaral. All were started outside on a 12-12 cycle. Loving the weather I’ll take some updated pictures when the suns coming up

Smithygreen

Okay.
12/12 from seed.
It can be done very successfully.
If in soil or coco yields are gonna suck. Straight up.
DWC,RDWC, NFT or Flood table’s. Combined with a SOG is the way to go, 2 to 4 plants per sqft.
You have to take advantage of the faster and more vigorous growth rates to pull it off.
Use a transition mix of hydro nutes for the first 10 to 14 days after that use straight bloom nutes.
Do not forget CO2. Its really important to give your plants all they need doing 12/12 from seed.
Autos do way better than Photos using 12/12 from seed. When done right there is not much need for trimming, topping or anything else. Saves a lot of time and money and you will get good yields. I have done this. I changed my tech a bit. Now I use monster crop clones from my traditional grow that I just reveg in my cloner as its very large and then right back into flower under 12 and 12, SOG at 2 per sqft in a home made RDWC system that I made for SOG. I use indica doms for that setup. It holds 100 plants in a 50 Sqft canopy area and I am using 3x 600 watt Gavita E series that I overdrive with a EL1 controller to 125% beginning week three of flowering. I am getting about 3.25. Lbs dry per run and after I got my clone cutting time right with the reveg time I am pulling that down every 55 to 60 days. My new cuts of MC clones are rooting well and I am getting ready to fill my system back up again. I will post some pics when I get it all running again. Right niw just waiting on clones.

The 12/12 Method: The New Craze in The Canna-Cultivation World

Cannabis growers all over the world are constantly seeking new methods and ways of cultivation; this is especially true for indoor growers because of space restriction. They believe that having limited space should not hinder their plant growth and yield.

The introduction of a new method known as the 12-12 from seed method has gained wide acceptance among the indoor cannabis growers. The photoperiod cannabis strains usually flower based on their light cycle, this is usually recreated by the indoor cannabis growers to keep them in their vegetative phases and enable them flower. The 12-12 in the name refers to the 12 hours each of light and darkness the plant is exposed to immediately after germination.

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The normal method which has been used for a long time is to use an 18/6 cycle in the vegetative phase which takes about 2-4 weeks before switching to a 12/12 light cycle for the flowering phase. However, the 12/12 technique skips the traditional vegetative phase entirely to force them into flowering immediately by making use of the 12/12 light cycle. Rather than the plant focusing on developing its size and leaves, it is tricked into flowering immediately in a bid to reproduce.

It is especially appealing for growers who have serious space problems as the plants grow much smaller and manageable than the regular plant which went through the vegetative phase. They are a lot less bushy and have fewer branches and can produce an average of 5 harvests per year in some cases thus making it more attractive for those growers who don’t have a lot of time. The 12/12 photoperiod growing method is an economical and space-saving way of growing your cannabis plant. It takes an average of only 7-9 weeks straight from seed to harvest which is quite faster when compared to the regular cannabis growth.

The 12/12 method of cultivation does not need any special care except changing the duration of its light cycles. The plants are still to be treated as always, receiving care and love from the grower as always in terms of growing medium conditions, nutrients, pest and disease control among others. This should be monitored most especially while the plants are young just like it would be during a normal bud cycle.

Advantages

They are easier to maintain as there are far fewer leaves to handle while trimming thus freeing up your valuable time.

It allows for good light penetration to the plants and an easier maintenance routine as the plants are accessible and can be moved around.

They are capable of growing in a tiny area

it is money-saving as there is a reduction in demand for resources like water, nutrients, and electricity across the board and reduces wear and tear on the moving components.

It allows for efficient space-saving as the plants have fewer side branches and do not spread excessively like those grown using the regular method.

The 12/12 cannabis growing method has both its opponents and proponents as some believe that plants that are produced using this method give growers lower yields as a result of being unable to produce budding sites and have lower concentrations of THC. On the other hand, some growers say it is so effective that it produces very good and bountiful cannabis harvests with some of them claiming to get as much as one gram of weed per every watt of light used. Although this might not be the case, the 12/12 cannabis growing method has its merits and will continue to be adopted by many cannabis growers over time.

Some Tips

Resterilizing the grow area after every crop is important to keep it clean and sanitized.

Keep mold and mildew at bay by regularly checking your plants especially those in areas with less light.

The right cannabis plant variety is important for this cultivation method as some varieties like Indica are known to not work well with this method. Hybrids and the Sativa varieties are known to work well as their growth and root development make them ideal candidates for this method.

Powerful lighting and air circulation system ensures that your plants get strong lighting and enough air to develop well.

Your plants will notice any abrupt changes in lighting so use the right one such as the HPS lamps from the beginning and a poor lighting system will result in stunted growth.

It is important to keep in mind that a cannabis plant that has undergone the 12/12 method of cultivation will look different from your regular plants. This is because the photosensitive hormones on your plant make the largest cola its highest point and the plant will likely have a few short branches with only a major bud. However, this is where the difference ends as there is no means of identifying cannabis grown through this method through flavor and effect.

Maximize Cannabis Yields With The 12/12 From Seed Method

If you’re looking to maximize your yields but you are limited on space, maybe it’s time to switch from your traditional cultivation techniques to the 12/12 From Seed method. Instead of cultivating from a clone, waiting through weeks of the vegetative stage, and growing plants that take up way too much room, the 12/12 from seed method produces high yields and maximizes your time, space and money.

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Traditional indoor cultivation systems that run from clones maintain vegetative stage that lasts anywhere from 2-4 weeks, sometimes longer. The vegetative stage is maintained using an 18-24 hour light cycle, which prevents the cannabis plants from flowering. The 12/12 from seed method takes a different approach. By starting your garden from seed in stead of clone, you avoid potential problems like pests. By implementing a 12/12 light cycle from germination, you end up with a lean, dense plant, and by elimination of the veg stage, you will be able to harvest up to seven times a year. This makes it an ideal method of cultivation for anyone pressed for time and space.

STARTING WITH SEEDS

While growing cannabis from clones may seem like a quick and easy way to get started, they have their fair share of drawbacks. First off when you grow from a clone, you are limited whatever selection the local clone shop has, as you can’t ship clones through the post. Buying from a respected seed bank gives you selection and confidence that what you are buying is actually what you are getting. Next there is the risk of contamination. Grows are affected by pests and mildew not because they are inherit in the plant. They are brought in from the outside, often on clones purchased from contaminated sources. It’s just not worth taking the chance. Starting with quality seeds is a fundamental part of the 12/12 from seed method.

SKIP THE VEGETATIVE STAGE

The vegetative stage is the early stage of a cannabis plant’s life. It is during this time that the fledgling plants are fed a high nutrient regimen and are kept under either 18 or 24 hour light cycles to prevent flowering. This vegetative stage is a time when young plants grow into a rigid framework on which the heavy cannabis buds can sit. High levels of nitrogen are needed to reinforce cell walls, strengthening branches, and creating a lattice of limbs strong enough to support the weight of the incoming fruit. The 12/12 from seed system of cultivation does away with this entirely focusing the light’s energy into a single robust cola surrounding the center stalk.

Once your seeds start to germinate, going right to a 12/12 light cycle will forever change how your plants will grow. By removing the four week veg stage, you force the plant to grow a single dense cola around the central stalk, as the many branches of the plant have not had time to form. This causes flowering to being almost immediately. The central shaft will be surrounded by only a few smaller branches close to the base. The end result is 85-90 percent of the budding occurs in the single central cola.

ADVANTAGES OF 12/12 FROM SEED

High yields in small spaces is one of the primary benefits of the 12/12 from seed method of cultivation. By design, plants grown in the 12/12 method start flowering from day one. This causes flower growth to follow a very consistent pattern of short, tight, single cola plants, with few smaller branches. This allows the maximum amount of energy from your lighting system to be focused into the single central cola. This eliminates most lower branches and the space they take up along with them. This is ideal for those who don’t have much space to play with.

In eliminating the four weeks or more of vegetative time, you are able squeeze in more harvests per year. Using the 12/12 from seed method growers have been able to harvest as many as six or seven times each year. More plants per square foot plus more harvests per year equals an opportunity to truly maximize the amount of cannabis you can produce in even the smallest of spaces.

Switching to the 12/12 from seed method of cultivation produces the same dense, high THC rich nuggets of its traditional counterpart, however, is designed for those looking to maximize yields in tight spaces. By eliminating the vegetative stage, you are able to squeeze in a few extra harvests every year which will save you time and money in the long run.

Author – Cory Hughes / Twisted Purple Media.
Twisted Purple Media is a cannabis content provider and original author of this article.
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