What Is A Feminized Weed Seed

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What are feminized cannabis seeds? Feminized cannabis seeds were first created in the 1990’s by Dutch Passion; feminized seeds give rise to female cannabis plants. Before feminized cannabis Learn about feminized seeds, or seeds that are bred to only produce female cannabis plants. Feminized cannabis seeds revolutionized growing cannabis at home. If feminized seeds are new to you, check out this article for lots of interesting facts.

What are feminized cannabis seeds?

Feminized cannabis seeds were first created in the 1990’s by Dutch Passion; feminized seeds give rise to female cannabis plants.

Before feminized cannabis seeds were invented, the only option for home growers was to use regular cannabis seeds , these produce male and female plants in roughly equal numbers. The male plants have to be thrown away to prevent them pollinating the females, which would fill the plants with seeds. Many home growers in the 1980’s & 90’s wanted feminized seeds which would only produce female cannabis plants, but this was widely regarded as impossible, many people had tried and failed.

The introduction of seed feminization means that only half as many cannabis plants need to be grown. This allows the grow-room to be smaller, use less energy and be more efficient In countries where cannabis has not yet been legalized growers prefer to have fewer plants to minimise their risk.

Above, OutLaw grown by Mr Sparkles. OutLaw is one of Dutch Passions most resinous strains

Below, CBD SkunkHaze by Antonio. Any seed variety can be feminized; CBD-rich, automatic or traditional.

The introduction of feminized seeds has been one of those few discoveries that have genuinely changed the way millions of people grow their own weed. Within a few years feminized seed accounted for around 97% of Dutch Passion seed sales. And as other seed companies learned how to create feminized seeds they saw the same effect – nearly all the customers wanted to use feminized cannabis seeds. Today many seed companies only sell feminized seeds.

Here at Dutch Passion, despite inventing feminized seeds we still sell 15 varieties in regular (non-feminized) seeds even though these regular varieties account for just 2-3% of our sales. Selling regular seeds is a service rather than a profitable business for us, we offer regular seeds for the old-school home growers who still prefer them. And our collection of regular seeds is also a valuable source of original genetics for smaller seed banks who like to select plants for their own breeding projects.

Above, AutoXtreme grown by TaNg almost ready to collapse under its own weight. All of Dutch Passions Automatics are feminized.

Below, Blue AutoMazar by Hazy. A super-potent customer favourite characterized by numerous heavy blooms, rich flavours and exceptional resin production.

How were feminized cannabis seeds discovered?

Its a question we are often asked. How did we find out how to create feminized seeds? The question had been asked ever since home growing began to appear in the 1970’s and 1980’s. There were many ideas, some people believed that minute differences in the size or shape of the seeds could indicate whether the seed would produce a male or female plant. But like many of mankind’s challenges the real answer came after years of study, research and hard work.

Henk van Dalen formally established the Dutch Passion Seed Company in Amsterdam in 1987 after many years collecting and working with the best cannabis genetics. As well as offering top quality cannabis genetics to the home grower Henk always had a passion to make it easier and more convenient to grow cannabis at home without being an expert.

Above, Think Different grown in DWC under 600W HPS by Bambud. A strong cerebral high and one of our most established automatics

Three books were to play an important part in Henks work. These were: Mel Frank/Ed Rosenthal`s “Marijuana Grower`s Guide” (1978) and Robert Connell Clark`s “Marijuana Botany” (1981) and Jorge Cervantes “Indoor Marijuana Horticulture” (1983). The comments in Rosenthal’s book about female seed possibilities was especially interesting to Henk who has always looked to make marijuana growing easier and more convenient to the home grower. Henk used his Biology degree and understanding of plant hormones to apply some scientific methods to his work.

Henk noticed something unusual when he left female plants to continue flowering for a few weeks longer than normal. He noticed that female plants grown from regular seed and left to bloom for several weeks longer than normal could produce male flowers at the very end of their life cycle. At the time it was an observation that was puzzling, yet it was also an observation that was repeatable. The male flowers were produced so late that the plant was unlikely to be able to pollinate itself, the optimum point to pollinate a female cannabis plant is after approx. 4 weeks not 12 weeks ++. Henk carefully collected the pollen produced from these male flowers and used it to pollinate other female cannabis plants. The seeds were collected and grown. The process was time consuming but necessary. It was a remarkable ‘Eureka’ moment in cannabis history, all the seeds produced female cannabis plants. At first it seemed too good to be true, it was repeated again and again.

Eventually it was clear that the pollen collected from these late male flowers gave rise to female plants. It was called ‘female pollen’ since all the seeds grew into mature females. Feminized cannabis seeds had been invented and commercially introduced in November 1998. although some people initially refused to believe it was actually possible. The process of collecting this ‘female pollen’ was difficult, female plants had to be grown from regular seed and left for many weeks longer than normal and even then only small amounts of ‘female pollen’ could be collected. Several techniques were subsequently developed to stimulate female plants to create more ‘female pollen’.

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Above Skunk#11 grown under HPS by Captain Beefheart in soil. Our first variety to sell 1million seeds and still a classic

Within a few years feminized seed had become the normal way for the home grower to grow their own cannabis. Many people feel feminized cannabis seeds are Dutch Passions greatest contribution to the home grower, but we like to feel that the quality of our traditional, CBD-rich and AutoFem cannabis seeds is an equally important contribution. Henk received the first High Times ‘ Dutch Master’ award for his contribution.

Today feminized cannabis seeds have become the normal way to grow cannabis whether you are growing traditional varieties, autoflowering or CBD-rich varieties. Dutch Passion are extremely proud and grateful to have made a contribution to the cannabis world that has affected the way so many people grow their own cannabis.

Feminized seeds

Feminized seeds are bred to produce only female plants, as opposed to regular seeds that have a 50% chance of producing male plants.

More about feminized cannabis seeds

Feminized cannabis seeds are important to cannabis cultivation because only female plants produce consumable flowers.

Photo by: Gina Coleman/Weedmaps

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Beyond the fact that male cannabis plants produce pollen sacs instead of flowers, having males plants around female plants can ruin an entire harvest. That’s because male plants pollinate the buds of young female plants. When that happens, the flowers will be full of seeds, lowering their quality and value.

Breeders and growers developed feminized cannabis seeds to address these challenges. By increasing the likelihood that all your seeds will produce female plants, you eliminate the possibility of getting a male plant that won’t produce flowers and of having a male plant accidentally pollinate flower-bearing female plants.

How to get feminized seeds

Feminized cannabis seeds are very mainstream. You can buy feminized cannabis seeds online from seed banks around the world. And if you live in a place where home cultivation is legal, you should be able to purchase feminized seeds at most dispensaries. You can also feminize seeds on your own, but to get the best feminized seeds, buy them from a reputable breeder or seed bank.

How are marijuana seeds feminized?

Feminized cannabis seeds are created through a process of genetic manipulation. Essentially, the idea is to induce female plants to make pollen. Normally, only male plants produce pollen, but if you can somehow make a female plant produce pollen, then what you’ve got is pollen containing only female chromosomes. There are a few ways to make this happen:

  • Spray a female plant with colloidal silver while it grows and transitions into the flowering phase. This chemical promotes the growth of pollen sacs, and because this pollen comes from a female plant it carries female chromosomes. After the plant starts producing pollen, use it to pollinate the flowers on a regular female cannabis plant. These pollinated flowers will produce feminized seeds. There are some reports online that say you shouldn’t smoke or otherwise consume any part of a plant that’s been sprayed with colloidal silver. And there are also reports saying that’s baloney. You’ll need to decide for yourself.
  • In a process very similar to the colloidal silver method, spray a young female cannabis plant with silver thiosulfate. This chemical suppresses the production of ethylene, which is necessary to the flowering process. By feeding your female plant silver thiosulfate, you encourage the plant to produce pollen, which can be used to pollinate other female plants and produce feminized cannabis seeds.
  • The third main method is known as “rodelization.” This is an all-natural technique, although it does not produce the desired outcome as consistently as the colloidal silver or silver thiosulfate methods. Rodelization takes advantage of a natural process in which an unpollinated female plant will sometimes organically sprout its own pollen sacs. Think of it as the plant’s last-ditch effort to reproduce. In this method, you force a female plant to remain in the flowering phase for so long that the plant’s self-pollination mechanism kicks in. When this happens, you can use the pollen created by the female plant to pollinate the flowers on a regular female plant, which will then produce feminized seeds.

What is the difference between autoflowering and feminized seeds?

Autoflowering seeds have been bred to move into the flowering phase without needing changes in light to activate the production of flowers. Whether cannabis seeds are seeds doesn’t have anything to do with when plants enter the flowering phase. Feminized cannabis seeds have been bred to grow only female plants.

Are feminized seeds guaranteed to be female?

While feminized seeds generally grow only female plants, there is no 100% guarantee whether you buy feminized seeds or create them yourself. Every once in a while, a feminized seed will still grow up to become a male plant. For this reason, it’s a good idea to keep a close eye on your plants as they mature. If you ever see pollen sacs starting to form, remove the plant before it accidentally pollinates and ruins your female plants.

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Do feminized seeds produce seeds?

Theoretically, plants sprouted from feminized seeds should not produce seeds. They should only grow into female plants, and unpollinated female plants produce buds instead of seeds. Cannabis plants make seeds when the flowers of a female plant are pollinated with the pollen from a male plant. In the absence of male plants, there should be no pollen and therefore no seed production. If you force a female plant to stay in the flowering stage too long, however, all bets are off and you could wind up with rodelization as discussed above.

Are regular seeds better than feminized?

Growing cannabis is all about your goals and preferences. There is no inherent reason why regular female marijuana seeds would be considered better than feminized seeds. With that said, feminized seeds:

  • Maximize yields by reducing the chance of producing an unusable male plant
  • Decrease the risk that a male plant will accidentally pollinate female plants
  • Simplify the growing process by making unexpected male plants much less likely

In many ways, feminized seeds can be a good option for new growers, as they eliminate some guesswork and reduce the pressure to quickly and accurately identify and eradicate unwanted male plants. However, there are no guarantees and new growers should still do their homework and know how to spot a male cannabis plant.

Tips for growing marijuana from feminized seeds

The steps for growing cannabis from feminized seeds are the same as growing from regular seeds. If you understand the laws and regulations where you live and want to give cannabis cultivation a try, keep these things in mind.

Before you plant the first seed, you’ll need to make some decisions:

  • Do you want to grow your cannabis indoors, in a greenhouse, or outside under the sun? do you plan to cultivate?
  • Will it be autoflowering or photoperiod?
  • Are you going to grow from seed or clone a cannabis plant?
  • What cultivation medium will you use? Good old soil, hydroponic solution, or an aeroponic system?

Each of these areas may generate more questions. If you grow indoors will you use natural or artificial light? If you go hydroponic, will you also use a grow medium like rockwool or hydroton? While you could just buy a clone, plop it in some soil, and hope, it’s best to think like a beginner and do some thorough research before taking the marijuana-growing plunge.

On the other hand, if that’s just not your style, you could treat cannabis like a houseplant and attempt a simple indoor grow with natural light. If you start with a plant or two on a sunny windowsill and wind up with a nice harvest, you might choose to move on to a more complicated setup or just keep it simple. Like most things in the cannabis world, it’s all up to your personal taste and how much effort you want to put into it.

10 Most Interesting Facts About Feminized Cannabis Seeds

Feminized cannabis seeds are taken for granted by some growers, but they are still a source of confusion for others, especially for beginners! Here are 10 interesting facts about these feminized cannabis seeds to share with your friends.

Anybody who has ever used cannabis owes their delight to the female aspect of the plant. This is because female cannabis plants contain greater concentrations of the much-loved cannabinoid, THC. For this reason, growers separate male and female cannabis plants to protect the females from pollination. Feminized seeds remove the need for this kind of “sorting”, as plants are basically guaranteed to be female.

  1. Creating feminized versions of plant seeds did not originate with cannabis, but was a technique used in agriculture for many years before being successfully adapted for cannabis in the 1980s.
  2. There are several different methods of creating feminized cannabis seeds, but they all rely on stressing a female plant until it becomes hermaphroditic and produces pollen, which is then used to fertilize another female plant.
  3. When feminized cannabis seeds were first released, there were concerns from some growers that the plants they produced would be unstable hermaphrodites. These fears proved mostly groundless, and as feminization techniques continue to improve, this problem now rarely occurs.
  4. Feminized cannabis seeds produce feminized, not female, plants, according to the proper scientific definitions. However they are still sometimes referred to as ‘female seeds’. As all the plants they produce should grow and flower like females, it is easy to see how the two names are used interchangeably.
  5. When feminized cannabis seeds were first introduced for sale, they were more expensive – sometimes much more so – than regular cannabis seeds. Fortunately, nowadays there are many different varieties of good quality, very affordable feminized cannabis seeds available, giving growers a wide range of choice for their money.
  6. Feminized cannabis seeds grow under the same conditions as regular cannabis seeds and require no special additional nutrients, techniques or equipment.
  7. The storage conditions required for feminized cannabis seeds are exactly the same as those for regular seeds. They should be kept perfectly dry, at a temperature of between 5 and 7 degrees Celsius, and in the dark. The door of a refrigerator is usually an ideal place.
  8. Feminized cannabis seeds have advantages for pretty much all growers, but especially for people growing their own medicinal cannabis as they may have less time and energy to spend checking for and weeding out male plants when they begin to appear, as is necessary with regular cannabis seeds.
  9. There is a misconception about feminized cannabis seeds, namely that they are genetically engineered. Genetic modification describes selective breeding processes that could also occur naturally – Skunk #1 and all other cannabis hybrids could be correctly called ‘genetically modified’. Genetic engineering, on the other hand, is when the DNA of one species is directly infused with the DNA of another – tomatoes with fish genes, for example.
  10. Sensi Seeds has an ever-growing selection of feminized seeds, in response to many requests from our fans for feminized versions of our most popular and award-winning strains. For some of the most affordable and high quality feminized seeds available online, you can also explore the selection from White Label.
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Still curious about feminized cannabis seeds after reading this top 10 list of interesting facts? Great – that’s exactly what we were hoping would happen! There’s a lot more to know about feminized seeds and how they are used to minimise intersexuality. So if your curiosity is piqued, keep reading for some more in-depth information.

Feminized seeds – Breeding to minimise intersexuality

When you purchase a regular cannabis seed, there is a 50/50 chance that the plant will grow to be female. However, under certain stressful conditions, even a female plant can mature and develop intersexual tendencies.

In fact, this forms the basic principle of how feminized seeds were developed. But mitigating these intersexual tendencies is also the objective of developing stable feminized seeds. Sensi Seeds has been perfecting the process of feminized breeding for years now, all so that home growers can minimize the chance of intersexuality in their plants.

Unlike more complex organisms, cannabis is not firmly one sex or the other. It’s a very unusual species in that it is an annual plant that is also dioecious (producing separate male and female flowers on different plants). However, every cannabis plant has the ability to produce flowers of the opposite sex under certain conditions. It’s a survival mechanism for the species, allowing cannabis to succeed and reproduce while being both annual and dioecious.

Some plants become intersexual quite easily, in response to stress in the growing environment such as temperature fluctuations, light cycle irregularity, physical damage, etc. This is a survival response. The plant detects that growing conditions are not favourable, which means that its chances of reproduction are lower. Poor conditions mean that a plant is less likely to survive the full season, and also that there’s less chance a plant of the opposite sex is close enough to cross-pollinate.

In these conditions, some female plants will grow staminate (male) flowers in order to produce their own pollen. They could then fertilise their own pistillate (female) flowers and produce seeds which will grow again the following season. Male plants will sometimes grow pistillate flowers, but this is less common.

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Old and new methods for breeding feminized seeds

When feminized seeds were first being developed, breeders used two female plants to cultivate feminized seeds. One was identified as having hermaphrodite tendencies (prone to producing male flowers when stressed), while the other did not have this tendency. Light cycle irregularity and pruning were used to stress the intersexually-prone plant into producing male flowers. The pollen from this plant was then used to pollinate the other female plant.

There was a costly disadvantage to this method. As the “pollen donor” was a plant with strong intersexual tendencies, there was a very high likelihood that this tendency was passed on to the subsequent seed.

By the time Sensi Seeds and White Label decided to offer feminized seeds, the process was already infinitely better. Using different techniques, female plants with a very minor tendency to turn intersexual were forced to produce male flowers. This meant that their offspring had no more tendency than a normal female cannabis plant to turn intersexual.

For this technique, there was no need for a female plant that had a strong intersexual tendency, unlike earlier, developing methods. Therefore, the possibility that a plant grown from a feminized exhibits intersexual traits was drastically reduced. This is how the feminized seeds offered by Sensi Seeds and White Label are produced.

In short, intersexuality is a fundamental part of the cannabis genome. Each individual plant simply has a greater or lesser tendency to turn hermaphrodite in response to different conditions. There is unfortunately no way of predicting a plant’s predisposition to hermaphroditism. With that being said, feminized seeds are no more likely to be hermaphrodites than any other seed, thanks to new techniques and technologies.

Laws and regulations regarding cannabis cultivation differ from country to country. Sensi Seeds therefore strongly advises you to check your local laws and regulations. Do not act in conflict with the law.

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