by Scarlet Palmer on 03/02/2016 | Cultivation

10 interesting facts about feminized cannabis seeds

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

10 interesting facts about feminized seeds

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

  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 centigrade, 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. Luckily, this has yet to occur with cannabis; feminized cannabis seeds, though a fantastic breakthrough in breeding, are not genetically engineered.
  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 Seed Company.

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Canna Clatch - Altruistic StrainHunters

Sensi Seeds,

We enjoy your blog and writing a great deal and have been a long-time follower but this article really comes up short if you're trying to educate people as to the nature of why seeds with a missing chromosome are being sold on the open market.

Why would you negate the "WHY?".

1. To create exclusivity
2. To create scarcity
3. To create brand security

American breeders have largely disbanded the offering of feminized stock and many have standardized their packs to 10 or more so that buyers can be sure their going to get a satisfactory representation of the genetic range.

It should be everyone's right to grow male and females of what they're buying and back-cross and pheno-hunt and pheno-cross as much as they like, this is far more valuable than the luxury of getting 5 seeds that are all known to be females but missing part of their genetic code.

Breeders worried about having their work get exported and crossed further need to understand that this plant doesn't abide by scarcity or manipulation, hence it's weed name. Breeders need to understand they are painters selling portraits and the more painters offering work, the lower the cost of getting a portrait done. Breeders looking to proprietize and copyright their work are no better than Monsanto trying to create exclusivity in food crops. Make a living, have a family, take some trips. There's no harm in making a fair income off of the complicated undertaking of cannabis breeding, but to want to take ownership and propriety is quote another thing.

Looking at the explosion of breeders in the last 4 years, it doesn't appear that the scarcity model of feminizing seeds is going to perpetuate. Are there growers who would like to till a field, buy 800 femanized seeds and broadcast them out as a style of farming, yes. But we know that's not exactly the best way to grow top quality.


Scarlet Palmer

Hi CannaClatch,

Thanks for your feedback.

I think it can be inferred from the title of this article that I was not trying to explain why feminized cannabis seeds are sold, simply share a few interesting facts about them based on what customers have most frequently asked when visiting our shops in Amsterdam. Point 8 gives one good reason why, though.

I absolutely agree that it "should be everyone's right to grow male and females of what they're buying and back-cross and pheno-hunt and pheno-cross as much as they like". This is why Sensi Seeds has focussed on releasing feminized versions of our pre-existing regular strains, rather than creating strains that can only be obtained in a feminized version. Having both feminized and regular seeds available of strains that are perennially popular enables us to meet as many people's needs as possible. For those with very little room and/or a limited budget, feminized seeds are an option which cuts out risk factors that may otherwise preclude them from even trying to grow a plant.

The vast majority of Sensi Seeds genetics are exclusive to us, though we are aware that other strains have been created with them, so there is no need to try to create exclusivity. If we only sold feminized seeds, as some seedbanks do, that could be interpreted as trying to create scarcity, but at the time of writing we still have far more regular strains (39) than feminized ones (16) and we have no intention of withdrawing regular seeds from our stock. Our regular seeds only come in packs of ten, for the reasons you have mentioned.

I hope this clears up any confusion as to the intention of this article.

With best wishes,




all smugglers and heroin addicted talk about weed ....
monsanto ....
and they smoke bad weed and seeds ( Brassica oleracea )....
a lot of smugglers and heroin junkie speak bad about you...


Scarlet Palmer

Hi Stefan,

Either I have misunderstood your comment, or it is quite inaccurate. Cannabis is one of the least profitable drugs to smuggle due to its bulk to value ratio. Heroin addicts who are not trying to quit are disinterested in cannabis; many of those who are trying to quit opiates have found cannabis can actually help them to do so.

Sensi Seeds has nothing to do with Monsanto and we do not endorse or approve of their work (to say the least!).

Brassica oleracea is, according to Wikipedia, "the species of plant that includes many common foods as cultivars, including cabbage, broccoli, cauliflower, kale, Brussels sprouts, collard greens, savoy, kohlrabi and kai-lan. In its uncultivated form, it is known as wild cabbage." So no, I wouldn't recommend smoking that.

"a lot of smugglers and heroin junkie speak bad about you…" About Sensi Seeds? See my comment above. Me personally? I seriously doubt my reputation is that big.

I hope this has cleared up your questions,

With best wishes,




Would have been good to see something included about the fact using them as mothers may produce intersex clones while limiting (bottle-necking) genetics meaning less chance of finding a keeper pheno.


Scarlet Palmer

Hello Calz, thank you for your comment.

I agree with you, but this is a topic complex and interesting enough to deserve an entire blog post, rather than a point on a list! I will mark it as an idea for a future article. Thanks again :)

With best wishes,



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