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most powerful cannabis strains

Top 10 most powerful cannabis strains

Even though CBD-rich strains are becoming increasingly popular, many consumers still want to grow the most potent cannabis strains. Genetics offering very high THC concentrations, for notable psychoactive effects.

In this article we will focus on the most potent cannabis strains available on the market. Some can concentrate THC levels above 30%, genetics reserved for the most experienced users. Before we list the 10 most potent cannabis strains in the world, let’s first look at what defines potency in cannabis.

What is cannabis potency?

Top 10 most powerful cannabis strains

When consuming cannabis, even the most inexperienced consumers may notice significant differences between the varieties of cannabis available. Depending on the type of genetics, more or less Indica or Sativa, it will be possible to feel more or less stimulating, energizing or on the contrary relaxing effects, either at the muscular or cerebral level.

The concentration of the different cannabinoids developed by the plant will influence the strength of the effects experienced. For example, a strain with 12% THC will have a more muted effect compared to the world’s most potent cannabis strains that can produce over 30% THC.

It should be noted, however, that it is not only THC that is responsible for the potency of a cannabis strain. It’s a whole! We now know that the range of terpenes produced by the plant also influences the type of effect and the overall potency of the harvest obtained.

Is it possible to increase cannabis potency?

The potency of a cannabis strain is determined by the genetics itself, but is it possible to make a cannabis strain more potent?

Growing conditions will obviously play a very important role in the production of cannabinoids, including THC. Proper nutrition will produce more trichomes in the most potent cannabis varieties.

Optimising your cultivation is key if you want to grow the most potent cannabis strains in the world. Care should be taken to ensure that the growing environment is ideal for the plants to thrive and that a stable temperature and humidity level is maintained throughout the growing process.

Basic nutrition can be supplemented with flowering stimulators, such as microbial life or sugars and carbohydrates. Some products can be added during cultivation to increase trichome production using the famous Delta 9 from Cannabiogen or Sugar Royal from Plagron.

Another very important point to enjoy the most potent cannabis strains is to harvest the plants at the right time. If you don’t know how to harvest potent cannabis, you’ll need to carefully monitor the maturation of the trichomes. Using a magnifying glass, the resin on the heads should be observed.

Clean cannabis head ready for harvesting.

Once the trichomes are mostly milky, and before oxidation begins, the plants should be harvested. If you harvest too early, or too late, the concentration of cannabinoids may vary and thus the potency of the harvested herb. Take your time and harvest the most potent cannabis varieties at the right time.

The conservation of the harvest should not be neglected in order to be able to enjoy the most potent cannabis varieties possible. Store your herb in an airtight container, away from light, in a cool place, and with a humidity between 50 and 60 %. Keeping it in good conditions will allow you to enjoy the power of your herb for a long time.

Is there a way to measure the potency of cannabis?

Although it is possible to notice the potency of cannabis at the time of consumption, it can be interesting to know the precise cannabinoid content of a newly harvested herb. This will allow the consumer to know the exact THC concentration, but it is also interesting for people who only want to consume CBD and want to be sure that their harvest is THC-free.

However, this operation is not necessarily very simple to carry out. To find out the exact percentage of cannabinoids, the most reliable solution is to send a sample (herb, hashish, rosin, etc.) to a laboratory that performs this type of test.

The most famous is the laboratory of the Foundation Canna, which analyses cannabinoids, but also terpenes, heavy metals, pesticide residues and moulds. The best way to be sure of the quality and potency of your cannabis!

However, for several years now, there have been solutions available to all growers, with tests that can be carried out at home, which do not require much equipment or special knowledge.

Companies such as Alpha-Cat offer kits to perform this type of test, called thin layer chromatography (TLC). This type of test does not give you the exact percentage of cannabinoids, but it does give you a fairly accurate idea of the THC or CBD concentration of the sample being tested.

Top 10 most powerful cannabis strains

Some growers want to find the most potent cannabis strain in the world, so here is a list of the 10 most potent cannabis strains available in the Bulk Genetics catalogue.

Here you are a list of the most powerful cannabis feminised bulk seeds, but also regular and autoflowering cannabis seeds so that all growers can find what they want.

Bruce Banner

Bruce Banner Buds

Let’s start with what could be considered one of the most potent cannabis strains in Bulk Genetics’ catalogue. Bruce Banner has made its mark on the modern cannabis world, with examples showing THC concentrations in excess of 30%.

For many growers it is too powerful, with a cerebral, euphoric effect and offering a great deal of creativity. Therapeutically, it is often used to relieve muscle pain.

OG Kush

OG Kush Buds

One of the most classic cannabis strains, OG Kush will be a welcome addition to the gardens of consumers looking for the most potent cannabis strains available.

The sensations are very balanced, very pleasant and positive, both on a cerebral and physical level. It is one of the most popular varieties sold in North American dispensaries.

Gorilla Cookies

Gorilla Cookies Buds

Among the more modern cannabis strains, Gorilla Cookies offers cannabinoid concentrations that can reach over 25% THC depending on growing conditions.

It is one of the most potent cannabis strains in 2023. Very quickly, after a few puffs, the consumer will be able to feel a positive effect, which will put a big smile on the consumer’s face, accompanied by a deep relaxation.


Trainwerck Bud

A North American cannabis legend from the 2000s. Trainwreck lives up to its name with a variety that challenges the consumer. It allows you to feel very positive, euphoric and energetic sensations that are felt very quickly, after a few puffs.

In the United States, it is sold in dispensaries to combat migraines, anxiety and muscle pain, among other things.

Critical 2.0

Critical 2.0 Bud

Speaking of 2000s legends, Critical 2.0 is a European cannabis genetics bred for extraordinary potency.

It is a hybrid variety that initially offers euphoric and stimulating sensations typical of Sativa. After some time, the consumer can enjoy a general relaxation.


Euforia Bud

The cannabis variety Euforia is not named by chance. One of the most potent Sativa cannabis strains in the Bulk Genetics catalogue.

Of course, it offers euphoric and energetic effects. In countries where the use of therapeutic cannabis is permitted, it is widely used to combat stress, depression and anxiety.

Jack Herer Regular

Jack Herer Regular Bud

If you are a lover of regular bulk cannabis seeds, you can not miss our selection of the most powerful. For growers looking for the most potent regular cannabis strain, Jack Herer Regular is a classic among experienced growers.

The Jack Herer is known to offer a double effect, a stratospheric cerebral high accompanied by a slap in the face that will prevent you from doing anything too physical or requiring too much concentration. Consumers will feel the earth tremble under their feet, ideal for a psychedelic time on the sofa.

The most powerful autoflowering cannabis strains

Below, you can see the most productive autoflowering bulk seeds in our catalog.

Runtz Muffin XL Auto

Runtz Muffin XL Auto Bud

Among the most potent autoflowering cannabis strains in the world is Runtz Muffin XL Auto. Depending on the growing conditions, it is a genetics that can concentrate THC levels above 20%.

It is a modern variety that offers two-step effects. The consumer will quickly feel an energizing, very powerful rush that will transform over time into a more relaxing and very physical sensation.

Sour Diesel Auto

Sour Diesel Auto Bud

A classic of the most powerful cannabis strains, will not disappoint the consumer with its autoflowering version.

Sour Diesel Auto is a Sativa-dominant genetics that offers very high THC concentrations for powerful sensations. The consumer will be overwhelmed by a wave of energy and creativity on both a cerebral and physical level.

Strawberry Banana Auto

Strawberry Banana Auto Bud

Finally the Strawberry Banana Auto, an autoflowering that is as powerful as it is tasty. As mentioned above, the concentration of terpenes also has a role to play in the effects experienced. One of the highlights of the Strawberry Banana Auto is the duration of its effects

The sensations are powerful and last a very long time. The consumer will experience a strong energy surge with great creative stimulation that will last for several hours. Ideal for daytime consumption.

We hope that this list of the world’s most potent cannabis strains from the Bulk Genetics catalogue will help you find the right genetics for psychoactive cannabis consumption.

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