How To Feminize Marijuana Seeds With Aspirin

Our guide will go over all the tips you need to know on how to feminize seeds with aspirin. Is it possible? What are the steps? A call out to those who prefer to use aspirin to turn their females even males…? over STC, Colloidal silver etc..? Learning how to feminize seeds with aspirin has been a very interesting topic today in the cannabis world.

Our Guide On How To Feminize Seeds With Aspirin | Tips On Growing

Previously, before the internet, using aspirin in feminizing marijuana seeds was not such a popular idea. Nowadays, however, through the use of the internet, technology, and non-stop research about marijuana which has grown along with the market, feminizing seeds through a variety of methods has become commonplace as well as learning how to grow the plant to increase plant yield. Our guide will go over how to feminize seeds with aspirin.

While feminizing is no longer a novel idea, the idea of doing it with aspirin still draws wary glances. This method while surprising to many is backed by many experienced growers. In case of doubt, an amateur grower is advised to use only a small percentage of his seeds for feminization by this period. So, have a read and learn how to feminize seeds with aspirin.

Advantages Of Feminizing Seeds Using Aspirin

Safe for using aspirin to feminize seeds for the sake of it, there are certain benefits for a grower who uses aspirin to feminize his seeds. Some of these benefits are as follows:

1. Boosts Germination

Spraying an aspirin and water solution to the soil where cannabis has been sown helps in ensuring the germination of the marijuana seeds planted. Salicylic acid which is the main ingredient in aspirin helps marijuana to develop its own natural defensive mechanism against fungi, viruses, bacteria, and organisms which are harmful to growth and development.

Also, the aspirin-water mix helps in the sustainability of the cultivation process irrespective of where the grower chooses as his final grow space. This is because the plant received adequate protection while it was still tender.

2. Combats Pests And Diseases

Growers should use about 81g or 1/5 of uncoated tablets of aspirins, mix it with about 2 gallons of water and add two tablespoons of Yucca extract. This extract ensures that the mixture stays on the leaves. Where Yucca extract is unavailable gentle liquid soap can be used.

Once the mix is ready, it should be sprayed once in three weeks. Few weeks after this treatment is begun, the marijuana plants will be seen to have bigger leaves with a darker green hue. This treatment acts to protect the plants from certain diseases and harmful insects.

3. Tempers The Need For Additional Treatment Chemicals (e.g. Pesticides)

the aspirin-water mix has an additional benefit of helping the plants’ acquired resistance which means that the plants stand a chance of becoming resistant to organisms or diseases to which they are naturally inclined to be susceptible. An additional advantage is that it helps the plant to be able to combat stress which is as dangerous to a marijuana plant as much as pests and diseases. Stress could cause a plant to wither and die or stunt them, preventing them from growing to their maximum potential which is a loss to the grower as it stops the plant from producing buds which is the grower’s reward for his hard work.

The aspirin-water mix, therefore, has an advantage for both plant and grower as it provides additional protection for the plant and saves the grower money.

In spite of the numerous benefits of the aspirin method of feminization, it is recommended only for professionals as it is risky for a novice who’s still learning the ropes to carry it out although it can be argued that the benefits outweigh the risks. But it is recommended that a novice grower uses the basic methods of feminizing seeds until he is ready for the aspirin method.

Advantages Of How To Feminize Seeds With Aspirin

A feminized marijuana seed is that which grows into female plants. Like most organisms except those which are hermaphroditic in nature, the male marijuana plant performs the function of fertilizing its female counterparts for seed production. However, in an age where seeds are readily available in a wide market, there’s no pressure on a grower to produce his own seeds. So, for a grower who is determined to make profits, the money is in the buds which are produced only by the female plants.

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This is because more buds are yielded when the females are not fertilized which allows them to mature completely with the maximum potential of the THC and CBD compounds.

Males do not produce buds but carry pollen sacks that mature to fertilize the females to produce seeds which are counterproductive for the farmer. Thus, growers are more interested in female plants where their profits lie. This means that one way or another, the male plants have to be separated from the females either after germination but before maturation or by feminizing all the seeds.

Where a grower chooses to grow all his seeds without feminizing them, he runs the risk of having more male plants than female ones and he will also have to use valuable nutrients in grooming them all – including the males which are of no economic value to him – until he can identify and separate them.

Fortunately, this can be prevented by the grower ensuring that all his seeds grow into females. By this method, the grower is guaranteed that all his plants will grow into bud-bearing females as feminized plants give their grower a 100% guarantee of being females and spares him the stress of trying to differentiate which plant is male or female which comes with using regular seeds.

Feminizing Seeds With Aspirin

Take 1 ½ uncoated tablets of aspirin and melt them in 2 gallons of water. Uncoated aspirin is recommended because it is guaranteed to dissolve. Add two tablespoons of Yucca extract or mild liquid soap to thicken the solution to make sure it stays on the plant.

Having readied the solution, it should be applied to the plants with the use of a sprayer. This should be done regularly. Where a sprayer is unavailable, the solution can be poured on the plant to induce stress. The significance is that the stress damages them genetically thereby, forcing the female seeds to become hermaphroditic in their bid to escape death. When the plants begin to produce, these hermaphrodites will grow the male organ known as the pollen sack. Pollens created by this method may then be collected for the further creation of feminized seeds.

Among experienced growers, there seems to be a unanimous agreement that this method works. Nonetheless, there is insufficient evidence to prove the effectiveness of this technique over say the rodelization method on which a grower will pick the aspirin method over-tested and trusted methods like the colloidal silver or rodelization method.


Feminizing seeds with the aspirin method is still a kind of hit or miss now among growers. Nonetheless, where an experienced grower will like to try his hand at a new technique, this method is highly recommended as a professional has reported a high success rate in so doing.

Anyone Else use Aspirin to Feminize their plants

A call out to those who prefer to use aspirin to turn their females even males.

over STC, Colloidal silver etc.

Roger A. Shrubber
Well-Known Member

i’ve read about that, but haven’t had the room to start a breeding program. if it works, sounds a lot easier than making and storing CS, i’d definitely be in favor of it as long as its effective

Well-Known Member

I’ve done some research, but so far I haven’t found any definitive proof that it works as well as CS. I would love to find an easier alternative to making, and/or buying the silver solution.

Well-Known Member

My concern, many breeders end up toking their

STS/C Silver sprayed plants by mistake or thru ignorance

so thinking toking salic sprayed weed ain’t so tough.

like my buddy did 2 weeks ago, and is now breathing hard

I prefer to trash the plants once I have gained the femmed pollen

Roger A. Shrubber
Well-Known Member

yeah i don’t think its a good idea to smoke a plant treated with CS, or STS, gibb might not be too bad, but i’d still rather pass. salycylic acid is in aspirin, i’m not sure what burning it will do to it, but of all the chemicals i’m aware of that will fem a plant, it seems like the safest one to consume

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Well-Known Member
Afgan King
Well-Known Member

So what’s ratio of aspirin to water? And spray plants with it? I have plenty of breeding projects I can experiment within the month

Roger A. Shrubber
Well-Known Member

So what’s ratio of aspirin to water? And spray plants with it? I have plenty of breeding projects I can experiment within the month

all i could find on short notice

Well-Known Member

I had an image saved with “instructions” for this method. But it was watering The plants with The mixture.
Didn’t have a ratio.
Found a ratio via Google.
Had several spare small clones So I chucked em into the flower room to get side lighting and try it out just out of curiosity.
Clones didn’t herm in 3 weeks.
Ramped up the dosage.
Threw the PH all out of whack (in promix)
And the medium attracted tiny white bugs. They didn’t go after plants.
Tossed clones and segregated one in a closet.
It stunted the crap out of it and it just died. This was after 6 weeks total in 12/12.
I was thinking of trying some cheap calloidial silver ointment (kinda like neosporin) as an experiment just for shits and giggles.

Well-Known Member

just use gibb. it cant be that harmfull its used extensivly in agriculture and horticulture some fruit and veges have had the crap sprayed outa them with gibb.

a mate tried asprin with no luck, cs works well but spray every day is a nuisance.

How to Feminize Seeds with Aspirin

Using aspirin in making feminized cannabis seeds is no longer a weird, new idea. Through technology, the internet, and modern-day research, it became easier to learn how to feminize cannabis seeds in many ways. Today, it is easier to find ways of helping you to learn from germinating cannabis seeds to increasing your plants’ ability to yield.

When it comes to feminizing cannabis seeds, the idea of doing it by using aspirin has been very interesting. It might be amazing for a few, but some cannabis growers are willing to back up this particular method. So, read on and learn how to feminize seeds with aspirin.

The Benefits of Using Aspirin in Feminizing Cannabis

Before you get started, you may want to know first the benefits you can enjoy if you use aspirin in feminizing cannabis seeds. Well, this technique gives a multitude of awesome benefits like:

Enhances the Germination Process

Spray a mixture of water and aspirin to cannabis seeds that you sowed to the soil. The mixture will help you make sure that all the seeds will successfully germinate. Salicylic acid is the leading ingredient of aspirin that helps cannabis plants develop their natural defensive mechanism against harmful organisms like bacteria, fungi, and viruses.

Mixing aspirin with water makes the cannabis cultivation process more sustainable no matter where you chose to cultivate the seeds. It gives the marijuana seeds further protection that they need during this extremely vulnerable stage.

Fights Diseases and Pests

Cannabis growers use around 81 grams or 1/5 of the uncoated aspirin tablet and mix it with water (2 gallons). After that, they add Yucca extract (2 tablespoons) to ensure the aspirin water stays on the leaves. If Yucca extract is not available, you can use a gentle liquid soap instead.

Once the water treatment is ready, spray it once every 3 weeks. A few weeks after, your cannabis plants will be big and turn into darker green. The mix of aspirin and water will also protect your cannabis plants from harmful insects and certain diseases.

Reduces the Demand for Artificial Pesticides

The mixture of water and aspirin can also help in the Systems Acquired Resistance or SAR effect of your plants. Using aspirin in feminizing your cannabis seeds not only helps them become more resilient against pests and diseases, but it also helps them combat unnecessary stress. As dangerous as pest infestation and plant diseases, unnecessary stress can also cause cannabis plants to wither. If not, they may fail to mature completely, preventing you from harvesting the buds.

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Using the mix of water and aspirin for your marijuana plants can be advantageous for you and the plants. For the plants, they get an extra sheet of protection against common diseases. On your part, you don’t need to invest in pesticides that save you money.

This cannabis feminizing method is highly recommended only for experienced growers. Many of them obtained their preferred results. Besides, many of them agreed it makes the whole process easier compared to any other methods used in feminizing cannabis seeds.

Nonetheless, the aspirin-water method is worth considering if you already have enough experience as a cultivator. If you are a novice, then give it more time. Follow the basics for the meantime and use the method only when you are ready.

Why Should You Feminize Cannabis Seeds?

Feminized cannabis seeds are those that grow up to be female plants. Well, cannabis seeds can be male or female. Male cannabis plants do not have much difference from other male organisms. Meaning, they are those that pollinate the female cannabis plants to generate seeds.

Males are doing it by having pollen sacs that will burst to release the pollen that will pollinate the females. On the other hand, females don’t have pollen sacs. Instead, they have buds or flowers that will generate seeds when pollination occurs.

If pollination did not take place, the buds will completely mature and are ready for the harvest time that lets people enjoy their excellent THC content. Only the buds have more THC and other compounds like CBD.

Only female cannabis plants can generate buds that make the males look useless in the eyes of most growers. What they do is they segregate the male plants from females and either cultivate them in a separate, isolated area or discard them for good.

However, cultivating cannabis by using regular seeds can be extremely difficult as they can end up growing up as males or females. It’s hard to guess what the seeds will be until they grow to a specific size.

Luckily, there’s a way to prevent cannabis seeds from growing into male plants: making them feminized. The feminized seeds are 100% sure to grow into female plants. Cultivating cannabis by using feminized seeds spares you from the usual headaches and worries when using regular seeds.

How to Feminize Seeds with Aspirin

Get 1 ½ aspirin tablet and dissolve both pieces into 2 gallons of water. Make sure the aspirin tablet is uncoated to get the best possible results. As said before, you can use either Yucca extract or mild liquid soap and add it to the solution. This will make the mixture stickier, preventing it from slipping off the plants.

Once the solution is ready, start applying it to your plants with a sprayer. Do it regularly. If you don’t have a sprayer, you can just pour the solution over your plants to stress them. Stress will quite significantly harm their genetics and force females to become hermaphrodites as they try to escape from death. In the end, the stressed plants will grow male organs known as pollen. You may collect and use the pollens created through this technique to generate new feminized seeds.

More and more experienced growers agree this technique is effective. However, there is no sufficient evidence to prove that aspirin is as effective as colloidal silver in feminizing cannabis. Unless you have been cultivating cannabis for almost a decade, it is best to skip first this method and use the rodelization or colloidal silver method instead.


Learning how to feminize seeds with aspirin has been a very interesting topic today in the cannabis world. If you want to give it a try, just keep in mind that it can either work or not. In many cases, it works provided that it was done by someone with enough experience in cannabis cultivation.