How To Separate Male And Female Weed Seeds

Follow this quick guide on how to tell the difference between male and female cannabis plants to help you start growing big and beautiful buds right at home! It is important to learn when to separate male and female cannabis plants so the males do not pollinate the female plants. When it comes to harvesting home-grown marijuana, female plants are the name of the game. Not only do female plants produce the coveted buds needed for medicinal purposes, but they also have higher potency and THC content compared to their…

How to Tell If A Cannabis Plant Is Male or Female

When it comes to growing cannabis, it truly is essential that you learn the difference between male and female cannabis plants. By learning this simple technique, you can easily decide what you want to pollinate and what you don’t.

Understanding Plant Reproductive Morphology

First, let’s take one step back to fully grasp why we need to separate cannabis plants by male and female in the first place. This is commonly referred to as the plant reproductive morphology, which is simply the study of the physical form and structure of a plant’s sexual reproduction parts.

While there are actually many complex forms of morphology, for the sake of keeping it simple, we’re only going to cover three of the most common ones.

Hermaphrodite (bisexual):

This is a type of plant that forms both male and female parts on the same plant. Therefore, this plant will be able to reproduce on its own. However, in cannabis plants, you can discover a “hermied” plant by banana looking shoots, which form on the flowers. While this can be the genetics of the cannabis strain, it may also be an indication of the plant getting too stressed out. When a plant gets too stressed and fears it will die, it may begin to form male reproductive parts. This is to ensure that seeds can drop for its survival (keep reading for more info on detecting “hermied” cannabis plants).

Monoecious:

For this type of plant, it will form both male and female reproductive parts. However, they will not be on the same flower as they are with hermaphrodite plants. Within monoecious plants, you will find one flower has female parts, while another has male parts. In cannabis, this is very uncommon to find. Actually, it’s only been reported a few times in history and something that we’ve never personally seen. If this were to happen, you would find one stalk with definitive male characteristics and other branches of the same plant with definitive female characteristics.

Dioecious:

Now, with a dioecious plant, you will find that the plant either produces all male parts or all female parts. This means that no single plant can reproduce on its own. The female actually needs its male counterpart to continue producing seed for the following year. And, you guessed it, this is the category cannabis falls into and why you must separate your males from females. If you fail to separate them all, you will likely find that the male plants pollinated your females. Therefore, leaving you with a handful of buds chalked full of seeds.

How to Tell the Difference Between Male and Female Cannabis Plants

Now, with an understanding of the various sexual organs within cannabis plants, let’s get to the fun part – separating your lady friends from their male counterparts.

After the seeds have sprouted and the plants have had a chance to grow, it will be time to find out which ones you’ll be keeping to flower out and which ones you will be chopping down to avoid seeded buds.

Usually, when starting from seed, you will need to wait about four to six weeks before the male and female parts will be formed well enough for you to see the difference.

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When to Separate Male and Female Cannabis Plants

Cannabis is an annual dioecious genus, meaning the species within the genus produce distinctly male and female plants each year from seed. In today’s cannabis industry, nearly all cannabis jobs and products focus on the female plant—and for extremely good reasons. It is important to learn when to separate male and female cannabis plants.

Female cannabis plants are the sex that produces the highest amount of coveted cannabinoids, which more often than not is tetrahydrocannabinol (THC). Females are undeniably the more exciting of the two sexes. Females produce the fragrant and potent flowers that all cannabis consumers know and love.

In comparison, the male cannabis plant isn’t nearly as enticing. Even the male plant structure is comparatively plain, even ugly.

When it comes to the battle of the sexes in the cannabis space, there’s no denying that females win, hands down. That fact aside, males are really just as important as females, although their usefulness is not as apparent. Without males, there would be no cannabis strains, and the industry would not exist.

Each of the two cannabis plant sexes plays a crucial role – meaning there’s a critical need to properly identify each sex, as well as when and how to keep them separate from each other in all but the rarest of circumstances.

First, A Little History on Male & Female Cannabis Plants

In past decades, cannabis—usually imported cannabis—was smuggled into the United States for the black market from countries such as Colombia, Mexica, Afghanistan, and Thailand. Bags of this type of bud were nearly always seeded in varying amounts, because male or hermaphrodite plants would be found within or in close proximity to grows consisting of females.

This abundance of seed wasn’t necessarily undesirable for the growers, because it ensured a ready supply of seed stock for future grows. The downside of this seeded marijuana was that it was low-quality, because female plants halt the production of resin in the form of frosty, sticky trichomes on their flowers once they become seeded by male pollen—and trichomes contain the highest levels of cannabinoids, including THC, the psychoactive property in cannabis.

Eventually, unseeded cannabis began to enter the black market, referred to as “sinsemilla,” which translates in Mexican Spanish to “without seed” (the word is derived from Latin sine “without” [see sans] + semen “seed” [see semen]). This unseeded cannabis quickly got the full attention of cannabis consumers because it was much higher quality from its high resin content.

Very quickly, sinsemilla was in high demand, and people began to shun heavily seeded flower, referring to it disparagingly as “shwag weed.” No one wanted the seeded stuff anymore.

In today’s cannabis industry, all commercial flower is sinsemilla, and it goes without saying that the flowers don’t contain seed. The term “sinsemilla,” although sometimes still heard, has become a somewhat antiquated colloquialism of the past.

How Modern Growers Keep Male & Female Cannabis Plants Separate

Today’s industry also cultivates cannabis under much more controlled environments that the marijuana fields found in other countries. Except for closely controlled and monitored breeding projects, female cannabis and male cannabis plants are segregated and kept apart from one another.

When a choice male plant (typically one with good structure and heavy resin production) is identified and its pollen collected, breeding it to a prime female is done with strict protocol in place.

For the home grower, the practice of culling male plants is extremely important to the overall success of the cultivation project. Today’s home growers typically acquire their seeds from a seed company or bank and have a choice between feminized seed (seed that will produce only female plants) and normal seed (seed that will produce both female and male plants).

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Growing From Feminized Cannabis Seed

If growing only female plants is the ultimate goal, there’s much to be said for the merits of feminized seed. This type of seed comes from specialized breeding practices that only utilize female plants, so this seed lacks the male chromosomes to produce male plants. When the plants begin to reveal their sex, they will all be female.

How to Identify Female and Male Marijuana Plants

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When it comes to harvesting home-grown marijuana, female plants are the name of the game. Not only do female plants produce the coveted buds needed for medicinal purposes, but they also have higher potency and THC content compared to their male counterparts. You’re in good hands—we’ve outlined everything you need to know about identifying female and male marijuana plants, so you can easily make the most out of your crop at home.

Look for thicker, sturdier stalks with fewer leaves on male plants. A male plant, compared to a female plant of the same strain, generally has a thicker stalk. That is because it gets taller than female plants and needs to be able to support the weight. They also have fewer leaves than female plants. [1] X Research source

  • You need to check every plant to determine if it is male or female, as one rogue male can wreck your harvest.
  • In general, male plants show their sex 7-10 days (indoor) or 3 weeks (outdoor) before female plants.
  • If you’re trying to create new plants or reproduce, you need to leave these balls undisturbed.
  • Female plants will have these bulbs too, but will also have long, translucent hairs on them. If you only see 1-2 on a plant, wait and see if more develop before cutting them.
  • “Hermies” are generally undesirable plants, and they can ruin a small crop with their pollen if you’re not careful.

Throw out or remove male plants unless you specifically want seeds. Once you’ve determined a plant is male, you need to get rid of it or it will ruin your crop. Do not try and remove the buds by hand, as missing even a few will significantly decrease your crop. While most growers simply throw the plants out, a few keep them around for breeding purposes. If you do, put them in a separate room from the females, and make sure you don’t track pollen in from the male room to the female room on your clothes or hands. [4] X Research source www.theweedblog.com/sexing-your-outdoor-marijuana-plants/

  • You can purchase “feminized” seeds as well, which usually create close to 100% female plants. However, there are occasional errors, and you should still keep a close eye on your plants to make sure there are no rogue males. [5] X Research source www.theweedblog.com/sexing-your-outdoor-marijuana-plants/

Note fuller bodies of leaves, when compared to males, on a grown female plant. If you’re trying to sex mature plants, one of the easiest indicators is how bushy they get. Male plants have thicker, sturdier stalks and very few leaves. A female of the same strain will be shorter and bushier, with more leaves, especially near the top.

  • Male plants will have the small buds (pollen sacs) but will not have the associated hair growing out of it.
  • Plants can grow both pollen sacs and pistils. If it does, it is hermaphroditic and should be treated like a male.

Separate your females from any males, as only females create buds. Only female plants will produce enough THC to be used as medicine, but they won’t create much if they become fertilized. The pistil is meant to attract pollen. If it gets it, it will create a seed, and all the plants energy and nutrients will be spent making seeds, not making big, THC-full buds. Your female plants are the only ones that will produce a crop, but only if they stay away from the males.

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In general it’s not a good idea, because you can bring bugs and other things into your house, but as long as it’s not being kept around indoor plants, it should work. Just make sure to keep an eye on the plant and give it plenty of fresh air, as that is likely what it is used to. Keep in mind that the sun is the best grow light, though, so you should leave it outdoors if you can!

It needs a light cycle with a minimum of 12 hours of uninterrupted, complete darkness every day to trigger and maintain flowering.

Be grateful, because you probably have female plants. Female plants are the only plants that produce buds.

I have a 6 month old indoor plant but it is not budding or showing any male gender. The plant stands about 51 inches tall; it appears to be healthy, very green, most of the nodes are standing up instead of sagging. What could be the problem?

Plants usually need around 12 hours of darkness to bud. That is why they bud at the end of the summer. If you have these indoors where they get light for more than 12 hours, that is your problem.

Cut the smallest branch and make sure it’s one of the young ones that will be flowering. This is called cloning.

A plant with 3 leaves is ruderalis, a wild outdoor variety. There are 5 types: indica, sativa, ruderalis, Australian bastard weed, and duck’s foot.

Many advise metal halide for vegetation and high pressure sodium for flowering. If your want to use blue light for vegetation, use 6500 k (cool white) CFL because you can keep them close and avoid stretch. HPS is fine for the entire grow because the lack of blue keeps them short.

Let the soil dry out before watering again. Cannabis plants are resilient and will usually recuperate from over-watering.

Check frequently once your plants have hit the 6-week mark — you want to know you plant’s sex as soon as you can.

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  1. ↑http://www.marijuanaseedbanks.com/female_and_male_marijuana_plants.html
  2. ↑http://www.theweedblog.com/sexing-your-outdoor-marijuana-plants/
  3. ↑http://www.growweedeasy.com/marijuana-boy-girl
  4. ↑ www.theweedblog.com/sexing-your-outdoor-marijuana-plants/
  5. ↑ www.theweedblog.com/sexing-your-outdoor-marijuana-plants/

About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 23 people, some anonymous, worked to edit and improve it over time. This article has been viewed 2,340,391 times.

If you’re growing marijuana plants, it’s important to be able to tell male and female plants apart, since only the females produce the buds that contain high concentrations of THC. To identify male and female marijuana plants, make sure they’ve been growing for at least 6 weeks, since both types of plant look the same in their early stages. Then, look for male plants to have thicker stalks and fewer leaves than their female counterparts. You can also tell if a plant is male by checking for little flowers or bulbs at the joints of the stalk and branches. By contrast, you’ll see small, translucent hairs on the same areas of a female plant. Once you’ve identified that a plant is male, remove it from your growing area to prevent it from pollinating the female plants, which will result in your THC harvest being reduced. For tips on what to do with plants that have both male and female organs, read on!