With at least a thousand cannabis strains available to choose from, deciding what strongest weed out there is might be a tad bit difficult.
Regular weed users make their choice over potency, effects, and taste, but there are also the cultivation methods, health benefits, and aromas that play a part in how strong a weed is.
Although we cannot settle on just one cannabis strain, what we can do is make a list of the most powerful weed strains. The experienced are invited to make their pick, newbies are advised to wait until they get some notches on their belts.
What Is the Strongest Weed Made Of?
Bear in mind that even though potency is mostly linked to THC content, it isn’t just high tetrahydrocannabinol levels that show how potent a marijuana strain is.
Other compounds in the cannabis plant’s chemical makeup such as cannabinoids and terpenes, also play a role in its potency. And the factor list doesn’t stop there!
Determining how high you can get is also your individual physiological response and innate body chemistry. Plus, there are also the conditions of keeping or the quality of your bong.
That said, let’s dive into the most powerful marijuana strains listed by their dominant types (Sativa of Indica).
Sativa-Dominant Strongest Weed for 2021
Sativa-dominant strains offer an uplifting, energizing high that is both creative and euphoric. The best Sativa strains can offer you the knock-out buzz you’re searching for, along with a multitude of health benefits.
Ghost Train Haze
This legendary 80%/20% Sativa-Indica strain is a cross between Ghost OG and Neville’s Wreck. Packing a generous 25.5%—27% of THC, it belongs to the highest THC strain group of Sativas.
Ghost Train Haze (GTH) is recognizable by its bright green color, with buds unusually dense among Sativa strains, covered in white, crystal trichomes.
GTH has a tart citrus aroma and flavor, followed by earthy, floral tones—a scent as potent as its effects are. So, for this strain, a fitting pot accessory would be a weed container.
A regular on the list of strongest strains of weed, GTH gives one of the most intensive energetic, cerebral highs spiced with an added vigor and a buzz of creativity. Like other high-THC strains, it is great for battling appetite loss and depression.
Nevertheless, people suffering from anxiety should steer clear of this marijuana strain as it can provoke intense feelings of paranoia.
Just like its namesake’s alter ego, i.e., the Hulk, Bruce Banner weed is big, green, and powerful. This strain-child of OG Kush and Strawberry Diesel remains part of the strongest weed in the world for 2021 with its incredible 24—29% THC content.
Because of the high THC content, the BB gives quite a racy trip that starts with an instant burst of euphoria and energy and ends with deep body relaxation, making it one of the coolest presents for stoners.
But be careful—this strain has five phenotypes with Bruce Banner #3 (also known as BB3) being the most popular.
Even though it is not selected as the strongest weed in Denver for 2021, BB3 cemented its reputation as one of the strongest-ever cannabis strains to win 3rd place in the Denver Cannabis Cup (2014).
Plus, with its dense buds and leaves that turn a wonderful magenta, this plant is a delight to behold! Not to mention that it gives off a variety of exotic scents and tastes that are predominantly sweet, lemony, hashy, and wonderfully spicy.
Recommended for its medical (it’s one of the best weed strains for treating stress and depression) and recreational use, Bruce Banner is unbelievably popular in the US.
Another aptly named strain, Strawberry Cough is known for its sweet smell and thick haze that can make even the most experienced user cough.
The plant is medium-sized, easy to grow both indoors and outdoors, and provides great yields. It has small, dense buds covered in red hairs and trichomes that make it look like the fruit it was named after.
But, don’t be fooled by its sweet name and flavor! This strain is one of the most potent weed strains on the market with THC content ranging between 25 and 26%.
The high this strain gives is uplifting and fills you with happiness —The kind of strain that deserves a special rolling tray. It is reputed for relieving users from stress, depression, anxiety, and nausea.
Giggles are guaranteed with this heavy-Sativa strain. Flowering time is between 70 and 75 days, and the results are impressive!
With frosty buds that are 22% THC and 1.6% CBD, Laughing Budha is the strongest strain of weed per both THC and CBD content.
The love child of Thai and Jamaican, Laughing Buddha strain has a sweet, fruity scent and flavor and grows tall and big both indoors and outdoors.
A perfectly named strain, the Laughing Buddha is recommended for treating symptoms of depression, fatigue, and stress. The strain has won many awards in the past and was proclaimed one of the best Sativa strains in 2003 and 2016.
Chem Berry D
This cross between Chemdog and Strawberry Sour Diesel has a high THC content (up to 32%), making it a strain that cannabis newbies should definitely stay clear of!
The highest THC strain hits both the body and the mind and can last for hours on end combining a feeling of euphoria and creative happiness. What’s more, Chem Berry D has an interesting terpene profile that delivers a sweet and fruity flavor accompanied by more chemical, diesel-like scents.
Patients suffering from anxiety, appetite loss, and mood swings would benefit the most from this particular weed strain due to its high THC levels.
In addition to popular weed strains, such as GSC and Sour Diesel, there is also Blue Dream, a Sativa-dominant weed that gives a relaxing, easygoing high; perfect for daytime use as it relaxes you, but still leaves you functional enough to be productive.
One of the most famous, best selling, and strongest weed strains for 2020 in the US, it has a great blueberry smell with undertones of vanilla and mango as well as a nice sweet berry taste which it gets from its genetic background — Blueberry Indica and Haze Sativa.
Blue Dream buds are dense with neon green nugs covered in blue hairs and they contain 17 to 24% THC.
This weed is one of the best for novice and senior users alike and is great for treating symptoms of depression, nausea, and pain.
Most Potent Weed of Indica-Dominant Strains
An all-powerful cross between Sensi Star and Sour Diesel, this Indica-dominant strain (21% THC content) was first developed in Ohio in the early 2000s.
The Death Star strain cannot blow up planets, but it can put you in a state of carefree, relaxed euphoria, which makes it great for treating symptoms of anxiety and depression, as well as insomnia. That said, you can use it both as daytime and nighttime strain.
A frosty-looking plant with orange and red pistils, this strain has a pungent smell and a citrusy, rubbery flavor.
Death Star is one of the best strains of all time, rated as the 10th strongest in 2018. Therefore caution is advised when using this cannabis strain as a beginner seeing how it is extremely potent with a high that starts off deceptively slow but can soon become too overwhelming.
Garlic Cookies (GMO Cookies)
Another high-THC (over 30%), Indica-dominant strain, the GMO strain has powerful sedative effects.
Developed from Chemdog and GSC, it is a dark green plant with many different aromas and an earthy, garlicky taste. This strain is great if you are looking to alleviate symptoms of stress and chronic pain. It is one of the best strains of weed for anxiety because consuming it will leave you feeling relaxed, happy, and totally famished too.
Due to many negative feelings, some people have regarding GMOs, this strain is also known as Garlic Cookies — a name given by dispensaries fearing consumer pushback.
Also known as the “Don of all OGs,” this Indica strain has dense buds covered in trichomes and is recognizable for its piney, earthy aroma and taste, sweetened with notes of grape.
Another recognizable feature of this strain is its high THC content which can range between 22% and 25%, giving Godfather OG weed incredibly powerful sedative properties. In fact, this strain hits hard and fast, instantly putting the user in a state of deep relaxation.
It is the sedative qualities of Godfather OG that make it one of the most popular medical marijuana strains used by people suffering from insomnia, mental stress, anxiety, and chronic pain.
A cross between Indica Bubba Kush, Indica L.A. Confidential, and Indica Granddaddy Purps, Godfather OG was proclaimed Best Indica by High Times in 2013, as well as the strongest strain in, and will probably be the strongest weed strain in 2020 as well!
The only weed strain to be blessed by a Rabbi, Kosher Kush is a multiple Cup winner that is known for its familiar and pungent smell of earth and fruit. Considered by many as the tastiest smoke out there, the Kosher Kush strain hits you hard and long.
As a result of its high THC content (21%), this pot offers relief from depression, anxiety, and insomnia. In fact, many smokers report that they had a long and peaceful sleep after taking this type of marijuana.
Constantly on the list of the most potent weed in the world, Kosher Kush is one of the best Indica strains ever!
Grand Daddy Purple
Introduced in 2003 in California, this strain, which has a 23% THC content, and thus part of the strongest weed strain is still fairly popular today, mostly due to its recognizable taste that is known to linger on the tongue.
Belonging to the most famous purple weed strains, GDP is pretty potent as it fixes your body in place by relaxing it to the extreme, allowing your mind to travel around in a dreamy buzz at the same time.
Pretty looks are a trait of this strongest weed too. Grand Daddy Purple has a distinctive look — its purple hues are a stark contrast to the white crystal resin covering the plant.
With its fruity and earthy aroma (courtesy of its parent Purple Urkle) and its oversized buds (from its other parent, Big Bud) this Indica-rich strain is usually chosen by users who need help managing stress, insomnia, appetite loss, pain, and muscle spasms.
Are you looking for the highest THC strain ever that will relax your body and transport your mind into a dreamy euphoria? Then Bubba Kush is the strain for you! Thanks to its high (27%) THC content, this weed is perfect for treating insomnia, depression, and ADHD.
Still, care is advised as it is not suitable for daytime use nor is it the right fit for people who are not used to Indica strains and the hit they give to the users.
Bubba Kush is considered one of the best strains of weed in the US and across the world as well. Its recognizable purple buds, sweet, hashish taste with undertones of chocolate and coffee are reasons enough for it to belong to the most popular marijuana strains out there.
Gorilla Glue is an extremely potent, sticky weed strain (it produces a massive amount of resin) that many a user adores due to the soothing sedative effects and the light head buzz it gives.
With buds that can produce up to 30% THC, this weed was dubbed the strongest weed in the world in 2020.
Its earthy flavors of lemon and pine, as well as its somewhat sweet, coffee and moss aroma, make Gorilla Glue the perfect nighttime weed for recreational and medical use (it treats anxiety, menstrual cramps, and pain the most).
Another thing that makes this strain so appealing is the number of buds it produces (up to 600 grams/m2). It can be a bit tricky to harvest, because of all the resin it has, but with such a big yield and such potent hits, it’s well worth the trouble.
Looking forward to being listed as one of the strongest strains in 2020, this weed is a genetic cross between Banana Kush and the strawberry phenotype of Bubble Gum.
Recognizable for its sweet, fruity flavor and smell, this marijuana strain is popular due to its high resin production and THC content (as high as 26%).
This Indica-dominant cannabis strain is easy to grow and produces large yields, especially if suitable nutrients are provided.
Strawberry Banana provides an uplifting sense of happiness that doesn’t impact your functionality but can affect your productivity. Its high THC makes it one of the best weed strains for anxiety, stress, and depression.
Strongest Weed — Hybrid Weed Strains
An Indica-dominant hybrid with 23% THC, the White is named after its trichome-covered buds, which are full of resin glands and make this plant look like it was rolled around in the sugar.
But it’s not just its appearance that is distinctive. The White strain is also known for its lack of odor! The quality makes it a popular choice for those wishing to avoid more pungent alternatives, but still taking some of the strongest weed available.
This plant is known to grow quite tall — hence why early topping is recommended. Its yield is small to moderate, with buds that have a piney, hashy smell, and spicy taste.
With its calming effects on the body and the head, this weed strain is recommended for the treatment of muscle spasms, headaches, nerve pain, and stomach issues. Also, because of its sedative effects, it is recommended as a mid-day or nighttime strain.
A hybrid that is 60% Indica and 40% Sativa, and one of the strongest types of weed, Gushers is a cross between Gelato and Triangle Kush. Named after the delicious, juice-filled candy, Gushers is an extremely potent strain with 15 to 22% THC and almost no CBD, so not suitable for novice users.
It looks like a pine cone, with the exception of dark-green and purple colors, and it smells and tastes sweet and creamy, with undertones of sour tropical fruits.
Be warned: Gushers strain has incredible relaxing properties that can knock you out for the whole night. Although one of the strongest marijuana types, it is not sleep-inducing; meaning, this weed will put you in such a deep state of relaxation that you wouldn’t care if the house was on fire!
Gushers also boosts appetite, so have some food around if you are planning to indulge in this particular marijuana strain.
A perfectly-balanced hybrid strain, Lemon Cookies is developed from Girl Scout Cookies and Lemon Haze.
Known for its neon green nugs with orange hairs, the said strain has a sweet lemony flavor and scent, combined with a spicy cookie overtone.
When discussing the strongest weed in the world and its effects, Lemon’s are not as bright and explosive as its aroma and taste, but this cannabis type is still a huge mood booster.
It promotes euphoria, but it’s not overwhelming as it relaxes your body and releases all the built-up tension and stress you have accumulated.
The Lemon Cookies strain is rich in THC (between 21% and 28%) making it just right for those dealing with mood swings, inflammation, fatigue, and depression.
Starfighter isn’t the highest THC strain around as it only has 15% to 20% THC, but it makes up for it with a lemony pine aftertaste that can linger for hours.
A cross between Alien Tahoe OG and Lemon Alien Dawg, this is an uplifting strain that will make you feel like you are soaring while causing extreme couch lock and relaxation.
With medium-sized nugs and dark purple leaves, and a coat of star-like trichomes, the Starfighter strain is best grown indoors.
Additionally, Starfighter is one of the best weed strains to treat the effects of chronic pain, depression, and anxiety.
There’s nothing subtle about this weed — from its pungent, diesel-like smell, to its high that heightens creativity while leaving the body stoned and relaxed.
With 19% THC, Chemdog might not have the same THC levels as other weed strains, but it is amazingly potent and not suitable for new users, or novice growers for that matter.
It is quite difficult to cultivate, but definitely worth a shot as it provides a nice yield of potent buds. Chemdog was proclaimed one of the best for 2019, with high hopes ranking among best weed strains in 2020.
It has been around for quite some time too! Legend has it that a man named Chemdog bought some weed at a Grateful Dead concert in 1991 and took a liking to it.
He bought some more and started growing it, thus creating this incredibly popular plant, which is also the parent of some other well-renowned strains such as Sour Diesel and OG Kush.
This strain of marijuana is perfect for fighting arthritis, ADHD, migraines, and PMS and is most certainly the best and strongest weed in the world.
As the name suggests, Sour Diesel is recognizable for its pungent smell of fuel, skunk, and citrus, as well as its sweet, musky flavor.
A Sativa-dominant hybrid with “only” 19% THC, Sour Diesel provides a fast-acting, energetic buzz that heightens creativity and gives an uplifting cerebral high. Because of this, it is not recommended for patients suffering from insomnia, but rather for nerve pain, chronic fatigue, or fibromyalgia.
Said to be the child of Chemdog 91 and Super Skunk, this is one of the best weed strains for sex, at least according to anecdotal experience.
Sour Diesel grows well indoors, but you need a warmer climate if you want to grow it outdoors as this weed is used to the hot California sun. The buds it produces have a strong scent while flowering.
The Californian Lumpy’s Flowers created what is now considered a part of the best strains of weed for anxiety ever. Apple Fritter inherits the fast-hitting effects and delicious apple pastry notes from its parent strains—Animal Cookies and Sour Apple.
These are what makes this strain have powerful, and relaxing effects. Apple Fritter will purge the last drop of anxiety in you, and help you reach a completely new level of chill—And this, just after the first hit!
The usual THC content is a high of 22%—28%. However, some Apple Fritter’s variants can bear up to 32% THC, top-listing as the strongest form of weed in the US, and rewarded as such in the High Times in 2016.
There’s no doubt that this strain will take you a creative and comforting sweet and earthy ride, which can result in sleep, so if physical and mental comfort is what you need, don’t hesitate!
Girl Scout Cookies
Perhaps the most famous marijuana strain in the world, this classic California weed is developed from OG Kush and Durban Poison.
Declared as one of the best in 2017 and looking forward to joining the best weed strains for 2020, Girl Scout Cookies is a hybrid with 60% Indica and 40% Sativa.
It brings the best of both worlds — a powerful high that combines happiness and euphoria with a feeling of deep relaxation.
Add the sweet, minty taste, the spicy and chocolate aroma, as well as the high THC content of up to 28% to the mix and it becomes clear why this is the best selling weed on the West Coast.
On top of that, it is the strongest weed in California for medical marijuana users, favored by patients who are troubled by nausea, pain, and appetite loss.
GSC is a big plant that needs a lot of space. It’s not the easiest type of marijuana to grow, but it does produce a large yield, so it’s definitely worth the effort!
This strain is a genetic mix between Gorilla Glue (GG#4) and Cookies & Cream strain. Grease Monkey’s THC and terpene combo reserves a powerful comforting hit for all those searching to accelerate the hazy, relaxing end-of-the-day feel.
Plus, this variety’s strongest cannabis strain can count up to 27%. Even the average (25% THC) will give you a break from chronic pain, headaches, migraines, and ease your way into a calm sleep.
Grease Monkey’s rich genetics give out an earthy mix, with vanilla and diesel undertones, a specific taste that lingers on. Depending on your weed experience, the effects can swarm you up quickly and suddenly and leave you couch-locked, which is an expected trait of the strongest weed strains for sure.
One thing is sure—Grease Monkey will hit you hard and give you the munchies, so you’d better plan ahead.
Just like ice cream (gelato in Italian), this slightly Indica-dominant strain has a delicious dessert-like sweet taste. The deliciousness of its buds comes as no surprise, given its origins from some of the tastiest and strongest marijuana strains — Girl Scout Cookies and Sunset Sherbet.
No doubt, Green Gelato will win you over with its sweet scent, creamy tones, and citrus undertones, but what will make you keep coming back is its mind-blowing potency.
Despite being a balanced Indica/Sativa strain, Green Gelato averages at an amazing 27% THC! Therefore, many dub this 2020-originating cannabis plant as the strongest marijuana strain around.
The sweet-smelling euphoria that will hit you with this strain, turns into a sleep-inducing relaxed high — excellent for winding down after a long day.
Adored by insomniacs and pain-sufferers. Green Gelato is grumping popularity stairs to the top of the most beloved cannabis strains for 2021.
Sunset Sherbet is not an insanely THC-powerful strain, given that its tetrahydrocannabinol content can go up to 20%.
But what makes it part of the best weed strains is that it offers an unforgettable buzz-trip that is uncommon among the heavy Indica-leaning (85% /15%) hybrid marijuana strains.
Indeed this strain’s effects start off with an upbeat, euphoric high that will have you buzzing around, and creatively planning your next move in life, just to lure you into the couch for the second episode — a deeply relaxed weed-lock.
So to speak, Sunset Sherbet is a solution for both health-seeking potters and stoners.
That said, its pungent sweet and earthy tones might come off as strong for some—definitely not a beginner’s “cup of tea.”
Final Thoughts on the Strongest Weed in 2021
Ever since man first discovered the sedative, psychoactive, and medicinal properties of marijuana, stoners have been on the hunt for a more powerful hit. Today, you can even get paid to smoke pot — what a time to be alive!
Hopefully, this list of the strongest marijuana strains will help you find the best one for you, whether you’re looking to weed-up, enrich your weed garden, or treat a medical condition.
What is the most popular strain of weed?
Popular choices of weed strains change round the clock, depending on supply and their reputation. While there’s no one unique strain that takes the crown, these are the most popular weed strains in the US, listed in no particular order:
- Girl Scout Cookies
- Sour Diesel
- Blue Dream
- Bubba Kush
- OG Cush
- Purple Haze
- Gorilla Glue
- Wedding Cake
What kind of weed is Gorilla Glue?
Gorilla Glue (GG) is a hybrid strain that is produced in three different varieties: GG1, GG4, and GG5.
GG#4 or GG4, the original strain is an Indica-dominant hybrid strain (63%/37%); It is actually a cross between Sour Dubb, ChechChem Sister, and Chocolate Diesel.
Winner of multiple awards both nationally, and internationally, this variety is also the most popular among users because of its high THC content. Levels of THC for Gorilla Glue vary from 27% to a jaw-dropping 35%.
What are the strongest weed seeds in the UK?
Seed banks in the UK are usually packed with high-THC, and high-CBD cannabis seeds. The choice is vast, but those that have “the strongest” rep are these:
- TrainWreck (18%—22% THC content)
- Tutankhamon (25% THC content)
- Bruce Banner (24—29% THC content)
- Girl Scout Cookies (up to 28% THC content)
- Booba Kush (15%—22%)
Before you order, keep in mind that you need to choose between the three types of seeds: regular seeds, feminized seeds, and auto-flowering in order to grow the strongest weed by yourself.
Ljubica is a writer and researcher who enjoys spending most of her time between the pages of her favorite books or immersed in her writing. With a background in English literature, she prides herself on delivering content that is well-researched and backed up by relevant data. When she’s not working, she’s known to binge-watch a TV show or two or hit the gym, which doesn’t happen that often.