Jan 212014
 January 21, 2014

marijuana cannabis plant plants yield

How Much Does One Marijuana Plant Produce?

One of the most popular questions regarding marijuana is “How much can I expect to get?” or “How much usable marijuana will a single plant provide?” There are no simple answers to this question as each situation depends on a number of variables.

Many people take up growing weed and they have a variety of reasons for doing so. In every case, you want to get the most out of your crop. Whether you’re growing for medical reasons or you just want to make a little money on the side, the overall yield is a top priority for all growers. Here are some tips to get the most out of your garden.

Growing Indoors

Lights are of the utmost importance when you’re growing indoors. Experienced growers can produce about a gram of marijuana per watt of light (1 gram = 0,035 oz). So, a 400-watt HPS lamp can potentially translate to 400 grams or 14 oz of usable cannabis. Likewise, a grow room with 1200 watts of light will produce 1.2 kilograms or 42 oz of cannabis. Having the right equipment, adequate nutrient solutions, beneficial air quality, and other valuable factors is important for producing the highest yields. Making sure the plants have space to grow is also key. Beginners can expect to yield grass as follows:


Imperial

  • An average of around 1.5 to 2.0 oz  (3.5 oz for advanced growers) with 200-watt CFL lamps in a grow cabinet that measures 3.5 x 1.5 x 6.5 ft.
  • An average of around 3.0 to 5.0 oz  (9.0 oz for advanced growers) with a 250-watt HPS lamp in a grow cabinet that measures 3.5 x 1.5 x 6.5 ft.
  • An average of around 4.5 to 9.0 oz (14 oz for advanced growers) with a 400-watt HPS lamp in a grow room that measures 3.5 x 3.5 x 7 ft.
  • An average of around 5.0 to 10 oz (21 for advanced growers) with a 600-watt HPS lamp in a grow room that measures 4 x 4 x 8 ft.
  • An average of around 250 to 500 grams (1000 for advanced growers) with a 1000-watt HPS lamp in a grow room that measures 5 x 5 x 8 ft.

Metric

  • An average of around 40 to 60 grams  (100 for advanced growers) with 200-watt CFL lamps in a grow cabinet that measures 1 x 0.5 x 2 m
  • An average of around 80 to 150 grams (250 for advanced growers) with a 250-watt HPS lamp in a grow cabinet that measures 1 x 0.5 x 2 m
  • An average of around 100 to 250 grams (400 for advanced growers) with a 400-watt HPS lamp in a grow room that measures 1 x 1 x 2.5 m,
  • An average of around 150 to 300 grams (600 for advanced growers) with a 600-watt HPS lamp in a grow room that measures 1.2 x 1.2 x 2.5 m.
  • An average of around 250 to 500 grams (1000 for advanced growers) with a 1000-watt HPS lamp in a grow room that measures 1.5 x 1.5 x 2.5 m.

Individual Plant Yield

Indoor growth doesn’t bring with it a lot of certainty in terms of yield per plant. If you have only four plants per lamp, then you’ll yield much more than you would with total of sixteen plants for every lamp. You should consider these things prior to choosing how many plants you want to grow:

  • If you’ve only got 4 plants, your crop will be ruined if even one gets a disease or dies
  • Vegetative growth lasts longer with only four plants. You should want to force flowering when the tips of the leaves are touching. If there are more plants, the leaves touch quicker.
  • Four plants are easier to manage than sixteen.
  • If someone catches you, you only have four plants to your name.

Either way, growing four plants using a 600-watt HPS lamp could produce about 150 grams or 5.0 oz per plant. Sixteen plants that are grown under a 600-watt HPS lamp could produce about 37.5 grams or 1.3 oz of marijuana per plant.

Growing Outdoors

Under perfect, outdoor conditions, you can expect yields to extend to 500 grams or 17.5 oz per plant. Space is a necessity (at least two meters) along with water, nutrients, and a dearth of pests and diseases. If you use containers, they should be at least 50 liters or 15 gallons in size. It’s a good idea to germinate the seeds early on to allow the plants time to grow large. It’s best to germinate indoors where you can manage the humidity and the temperature for the seedlings. Again, 500 grams (17.5 oz) per plant is possible if everything goes as planned.

Aside from an adequate amount of sun, water, and nutrient quality, the actual genetics of the plant play a very important role. Seeds are vital and you need to have some exceptional seeds at your disposal. You can look through our marijuana seed shop to find the a strain that’s right for you. It all starts with genetics….

Want to know more about growing marijuana? Get your free copy of ‘The Marijuana Grow Bible’ by Robert Bergman at this link here.

Source: ILoveGrowingMarijuana.Com

 

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About Robert Bergman

Robert Bergman is a master marijuana grower. Robert Bergman is the author of 'Marijuana Plant Care' and 'The Marijuana Grow Bible'.
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  64 Responses to “How Much Marijuana Does A Marijuana Plant Yield?”

  1.  

    I get around 24 oz per plant using light depravation “black box” method, a plant allowed to grow full season can produce around 80 oz, thats 5 lbs. this is not the norm, a lot of growers get much less using both of these methods. Indoors i get at least a gram a watt

  2.  

    LEDs?

  3.  

    On our tours we have a section where people can learn about growing. The get to see plants up close in every stage of the process it’s really interesting. http://www.SoMileHigh.com

  4.  

    Can we be grown up and call it like it is ” CANNABIS ” calling it weed,pot,marijuana or any other slang lessens this valuable plant. We owe it the decency to not call it names

    •  

      good point!

    •  

      Heck yes Poppa Homosexual

    •  

      “Marijuana” to me is a very offensive term. It’s a Mexican slang term for a person (not a plant or flower) who smokes to much. Totally agree that we need to start being adults and strike the term from all legal vocabulary. It’s as absurd as calling alcohol “fire water” or “drunkard juice”

      •  

        No. Marijuana is a proper SPANISH word which was conflated with Mary Jane arond 1894 but is from much older Mari (Love) Huana (Flower), or the FLOWER OF LOVE.

        •  

          Mari? Love must be a different Spanish to be honest Amor means love both in Spanish and Portuguese and most probably it’s flor dah that’s why you say florist and not flowerist but well I don’t know old Spanish but ok will see but I doubt

      •  

        Mate don’t be silly that old names we got them to its not slang it’s part of the language Mexico speaks Spanish dah we speak Portuguese that’s quite similar it’s not a Mexican slang term or maybe it’s just in Mexico that shit make no sense, I do speak a bit of Spanish but I don’t see how do someone call marijuana to other person. You don’t translate names it’s água ardente what’s in the world is drunkard juice? Next time write it in Spanish absurd it’s trying to understand someone that’s tired or offended because the plant that produces Thc has different names you people grow up

    •  

      For someone who blazes, Poppa Homage sure has a very large stick up his ass!

    •  

      You’re not the only one who is tired of “marijuana” (which isn’t really a word, more of a slang) and the rest of the denigrating words used for a medicinal plant that heals…

      •  

        So? Cannabis is from Cane-Bosen, because the Hindu’s thought it was a member of the bamboo family and they used the resin (bosen) for a variety of purposes. Cannabis is just slang like any other word. They also called it Bang from which we get the word Bong. Sativa can grow 20 to 40 feet tall and it’s cane hollowed out like bamboo to make bongs. It is called Pot because Queen Elizabeth’s many sons worked closely with Walter Raleigh to bring seeds from the New World to Britain where they were grown in the Tudor’s “Potager” Gardens. Every single word we use has a slang origin. It’s just that some slang seems more dignified than others, but in my opinion dignity is a made up concept.

        •  

          Well I think we got different views in what slang means, where did you read such thing be careful what you read because must of it is bullshit I Google capoeira because I was doing a work and was saying on Wikipedia that the word capoeira comes from the Indian natives of Brazil when that so ridiculous as if the slaves would be able to speak the natives language just to name their martial arts how dumb can that be yet capoeira mean cage normal chicken cage in Portuguese the Portuguese colonised Brazil and also shipped 4 million or thousands can’t be sure way more than the Americans did yet abolished slavery way earlier than load of other countries, with this said like the only official language in Brazil today it’s Portuguese yet they got independence way first than other colonies but no the slave asked the buttnecked natives can you help us find a name for our way of defending ourselves.

    •  

      Poppa Homage… The name Cannabis was given to the plant by humans… Other names are just as good, besides, marijuana is also an official name of it. :)

  5.  

    In the future, cannabis seeds will be more valuable than bitcoins. :)

    •  

      I don’t know about that. Currently seed production is sort of done underground. People growing illegally in Canada and the U.K to produce legal seeds. With legal growing, seed production will skyrocket as soon as good seed producers set up in the States. With the Government out of the way I would expect seed prices to drop along with bud prices.

      •  

        It sure would be nice to see prices come down, especially here in New Mexico (no matter who or what is responsible for it).

        But if you think about it, there seems to be an awful lot of mediocre strains around, so the best ones will become even more valuable. The companies who are known for continually selling quality seeds will do the best in this market. Keeping in mind that these seed companies will have underground connections that will be difficult for outsiders to make. (I don’t know about you, but I have found growers to be an unusually tight-lipped group.)

        And considering how volatile bitcoin prices can be (as with in any market), it is conceivable that the price of highly-prized seeds, on any given day, could be more valuable than whatever price bitcoin is listed for on that same day.

        (From someone who only reads Bloomberg for the articles…)

        •  

          But all it takes is one person buying said valuable seeds and reproducing as many seeds as they want. That’s why high priced seeds go down quickly and is replaced by another. Usually these “new” strains are nothing more than a renamed cheaper strain. Maybe a cross. I find the high price of seeds to be insane but when something is illegal I can’t really complain. I would also argue that one article from High Times can take a mediocre strain and jump the price up to outrageous levels. I know what you are saying and agree in the current market, but now that some legality to the industry is forth coming the high prices can’t be maintained without some clever marketing. Time will tell though.

          •  

            I admit I don’t have a grower’s knowledge of cannabis seeds. Would you say that there is such a thing as the original seed for a strain? I mean, I’m beginning to get a little dizzy with this chicken-and-egg thinking. One of these days, growers/dispensaries will educate interested patients, one-on-one, with how their medicine is grown. Hopefully, for free. Until I actually see the whole process, I’m just talking out of my… well, you know.

            And I sure hope the cannabis industry can bring in some new talent for its marketing strategies. Come into the light, children, all are welcome, all are welcome…

          •  

            A strain origin would probably be present in a country where it grows naturally. I read an interesting article about how seed producers travel the world looking for strains in remote villages. I’m not expert on the subject but today we have many “base strains” such as NL that have been the back bone of many new ones.

          •  

            NL?

          •  

            Northern Lights.

          •  

            in order to make the medicine(stone ) better , taste different , or for diff medicinal qualities two or more strains are bred together

          •  

            well I was lucky enough to have your sister educate me on anal intercourse at the end of summer camp you jerk off mongoloid fucking wombat dog scum blood bone bag piece of shit lining shit eating horse fetching doodle burger…..

        •  

          growers tight lipped ? only the ones that dont want to be busted ….

        •  

          I think the one thing more volatile that the bit coin trading currency market,is your stinking ugly dog of a mother her pussy is got teeth id rather put my doodle inside a crocodiles mouth that put it in her gaping waterfall that smells of tuna and regret…..

      •  

        Greed is the main component for anyone selling cannabis for ridiculous prices.

        •  

          That is why I Don’t smoke or sell it. I only grow it because I have a respect for the plant. I then give it out for free to friends who smoke.

          •  

            you are so full of bull shit its not even funny…you lied trying to make your point.What a sad little man your parents raised..

        •  

          Not really blame who don’t give a toss and buy it if no one buys prices drop availability and risk living cost all that adds up. No one forces anyone to buy over priced and down weight weed

    •  

      In the year 2000

  6.  

    This all is variable depending on the strains you grow.

  7.  

    How many months is the vegetation state for these numbers?

  8.  

    How many money i can get with 2-3plant outdoors and wath is the cost

    •  

      Depends strain yield Street price cost of outdoors can’t be much as you don’t get pots growrooms and all the other things all you will waste is in fertilisers and depending in your area pest control. Your question is like same if you asked a farmer how much money you can get from three apple trees will he be able to tell you how many apples of good quality you will grow or how much will cost you? I don’t think so

  9.  

    so im getting 200000 pounds of that

  10.  

    I have a renter who is growing marijuana plants in a 9 foot by 7 foot area in the basement. It is legal where we are. I am concerned about the amount of water it would take for this area of marijuana? I am paying the water and my bills have been considerably higher than normal.

  11.  

    Robert Bergman is a master Marijuana growers

  12.  

    In how long does the plant produce this yield? In one harvest… one year… it’s lifespan?

  13.  

    that is so not true about the yield part 1.2.

  14.  

    2 pounds per light under 14 days veg min, depending if you veg the thing like a tree, it will never yield what he says.. Which depends on how much money you want to spend on bills vegging for months and could still never produce that . Good rule of thumb 2-2.5 pounds per 1000 watt with little veg at 4 months from a clone to harvest.

  15.  

    Bong Shankar is what an Indian friend of mine used to call it. I think this name is likely older than all the others. He said it with reverence, as if he were addressing the gods.

  16.  

    I have yet to get anything like what is stated here i only get about 5-6 oz per plant so far.

    the first real run with a real grow light not cfl or t lights i had 3 seed bank plants under 400w hps with 100w of side lighting cfl and i got 4 and a quarter oz’s got my feet wet then decided it was time to move up to a 1000w .

    Since then did a blueberry headband and a lemonskunk trainwreck under the 1000 and got alil over 4 zips off the lemon and got over 5 off the blueberry i used fox farms nutes mostly.

    This last time the critical kush i did produced almost 8 oz with power mildew an all i used heavy 16 nutes this time with some additives. i used the 1000w hps with 2 140 actual watt mars leds on the sides.

    i have yet to get that pound yield everyone talks about maybe i have to venture into co2?.

    Sure i have gotten more then some people who werent serious bout growin or who dident take care of there grow but i am still an amateur.

    One thing ill point out that newbies do is assume that just because they buy some fancy nutrient or a special bulb or a fancy sounding strain that they will automatically get pounds and pounds of quality fat dense buds instantly and that just doesnt happen they see or hea part ofr what someone else does and think that is all there is to it.

    Then when they get pests like mites and stuff like mold and use too many nutes or wrong ph or something and plants start dying or they get a hermie because they stressed the plans with breaking branches or letting light in during dark when budding so they give up easy after wasting time and $.

    Newbies dont give up no one gets there expenses back there first run. you have to work with a certain strain for awhile and dial it in to see what it likes before you get a knock out harvest first you need to just get a crop to finish before u work on yield.

    Also some methods like doing hydro or using coco coir may produce a different yield on the same strain

    •  

      try growing in a much larger pot, like a thirty litre container, cut the tops three times so they branch out. Get rid of your smaller branches at the bottom. Ventilate your room so you are always bringing in fresh air and CO2 and make sure you keep your temperature not to high. Also, pot doesn’t like much humidity especially during flowering. A humid flowering room will give you loose buds and not much yield with the threat of mold. Use a growing medium like coco coir and use a really good fertilizer like canna which specializes in plants grown in coir. Another thing that is extremely important is the pH of your water. If its not right, it inhibits nutrient absorption, so get yourself a pH reader and get the proper pH up or down.
      Always start a new crop with fresh seeds, clean your room between crops and never buy clones because you can get pests like spider mites. When you start a new crop with fresh seeds every time, you’ll always have the best quality and yield. Don’t rush your plants and try to flower them when they are at least a metre tall or bit taller. This may take a couple of months or a bit longer. Don’t rush your crop. Good Luck and Happy Growing.

    •  

      try growing in a much larger pot, like a thirty litre container, cut the tops three times so they branch out. Get rid of your smaller branches at the bottom. Ventilate your room so you are always bringing in fresh air and CO2 and make sure you keep your temperature not to high. Also, pot doesn’t like much humidity especially during flowering. A humid flowering room will give you loose buds and not much yield with the threat of mold. Use a growing medium like coco coir and use a really good fertilizer like canna which specializes in plants grown in coir. Another thing that is extremely important is the pH of your water. If its not right, it inhibits nutrient absorption, so get yourself a pH reader and get the proper pH up or down.

      Always start a new crop with fresh seeds, clean your room between crops and never buy clones because you can get pests like spider mites. When you start a new crop with fresh seeds every time, you’ll always have the best quality and yield. Don’t rush your plants and try to flower them when they are at least a metre tall or bit taller. This may take a couple of months or a bit longer. Don’t rush your crop. Good Luck and Happy Growing.

  17.  

    If I had 15 seeds of Blue Dream, and I’m growing outdoors how much do you believe I’d get from a yield (per plant)? How spaced out should the plants be and how bad are pests and bugs would it be worth it doing it indoors?

  18.  

    Fuck everybody it is easy It is a weed for god sake you are as good as a guy that had had twenty harvest and I proved it very eeasy child’s play

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