highest thc strain 2020

Which Is the Most Potent, Strongest Weed on the Planet?

With at least 780 cannabis strains to choose from, deciding what the strongest weed out there is might be a tad bit difficult. Just as no two snowflakes are alike, no two weed strains are the same. Factors on which they differ include potency and appearance, as well as the different cultivation methods, effects, aromas, and tastes.

Although we cannot settle on just one marijuana strain, what we can do is make a list of the most powerful weed strains. So, if you are an experienced user, feel free to take your pick.

Still, if you are, in fact, a newbie, it might be best to stay away from some of these strains, at least until you get some notches on your belt.

What Are Strongest Weed Strains 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 of the cannabis plant, such as cannabinoids and terpenes, also play a role in a strain’s potency. Not to mention more factors, including physiological responses and innate body chemistry that determine just how high a user can get.

So, without further ado, let’s dive into the list of some of the most potent marijuana type (listed in no particular order).

The Strongest Sativa Strains

Ghost Train Haze

This sativa strain — named after one of the strongest marijuana strains on earth back in 2012 by High Times — is a cross between Ghost OG and Neville’s Wreck. With THC content of 25.5%, it packs quite a punch and is not suitable for beginners.

A bright green plant with dense buds covered in white, crystal trichomes, this strain has a tart citrus aroma and flavor, followed by earthy, floral tones. It produces quite a big yield (from 550 to almost 900 g/plant), especially if it is grown indoors.

A regular on the list of strongest strains of weed, Ghost Train Haze gives users an energetic, cerebral high with 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.

Bruce Banner

Just like its namesake’s alter ego, i.e., the Hulk, Bruce Banner weed is big, green, and powerful.

Named the highest THC strain in 2017 (it has an incredible 29% THC content), this weed gives users an instant burst of euphoria and energy, before eventually relaxing the body. Bred from OG Kush and Strawberry Diesel, this strain has several phenotypes, Bruce Banner #3 being the most popular.

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 scents and tastes that are predominantly 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.

Strawberry Cough

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-size, 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 — hence why this weed is highly recommended for relieving stress, depression, anxiety, and nausea.

Laughing Buddha

Giggles are guaranteed with this heavy-sativa strain. 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. Flowering time is between 70 and 75 days, and the result is — strongest weed, as well as a heavy yield of frosty buds that are 22% THC and 1.6% CBD.

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 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.

Blue Dream

Have you ever wondered what state has the strongest weed strains? While it might be difficult to decide between the huge marijuana taxpayers such as Oregon, Colorado, and California, according to users, it is the Golden State that takes the crown!

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. It’s 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 strains of all time for novice and senior users alike and is great for treating symptoms of depression, nausea, and pain.

Most Potent Weed — Indica Strains

Death Star

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.

A frosty looking plant with orange and red pistils, this strain has a pungent smell and a citrusy, rubbery flavor.

Since it was rated as the 10th strongest weed strain in 2018, 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.

GMO Cookies

Another high-THC (over 25%), 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.

Godfather OG

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!

Kosher Kush

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 strongest cannabis strains, 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, 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.

Bubba Kush

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

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 will be one of the strongest strains 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 amount 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.

Strawberry Banana

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 it can affect your productivity. Its high THC makes it one of the best weed strains for anxiety, stress, and depression.

The Strongest Hybrid Weed Strains

The White

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 sugar.

But it’s not just its appearance that is distinctive. The White strain is also known for its lack of odor! This 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.

Lemon Cookies

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 strain on the planet.

Sour Diesel

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.

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, and 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 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!

Final Thoughts

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 weed — what a time to be alive!

Hopefully, this list of the strongest weed types in the world will help you find the best marijuana strain for you, whether you’re looking to add some more potent plants to your weed garden, or you need something stronger to treat a medical condition.

There are hundreds of cannabis strains out there that are only getting stronger. What makes our strongest weed selection so powerful? A mixture of influences.

What are the Strongest Cannabis Strains in 2020-2021?

It could be the anxiety, stress, and depression produced by the COVID-19 pandemic, but cannabis users are still searching for high potency strains. One problem lies in accessibility. Despite the increased number of states legalizing medical and recreational cannabis, some of the strongest cannabis strains are only available in markets without national or international distribution.

However, if you are looking for the strongest cannabis strain late in 2020, you might consider shopping the following.

The strongest cannabis strains in 2020-2021

Any list of potent strains should include classics like Girl Scout Cookies and Bruce Banner, but there are competitors out there. Basically, there is one metric in this list; that is, potency is a function of the high THC count. There are other strains high in CBD, but when people talk “potency,” they are focused on the THC brain adventure. All these strains pack a real punch; some of them push your experience to the edge. They are listed here leading to the highest THC content.

10. Ghost Train Haze: At 18% THC, Ghost Train Haze is widely available and extremely popular among veteran cannabis users. The high THC level is manageable, and most veterans prefer not to push the envelop further. It hits hard and early with a creative focus following a wave of energy.

9. Chemdog (Chemdawg): The Chemdog strain offers a 19% THC euphoric punch in a flavorful mix of citrus and diesel. It reportedly relieves chronic stress with a creative focus that offsets wandering thoughts and voices. It is a great option for use among a social group.

8. Death Star: This strain has been tested at 26% THC, but it levels out at 19.5%. Some 80% Indica, it offers a diesel flavor and skunky aroma that will give you away. People use it for relief of insomnia, stress, and nausea. The medical benefits follow a clarifying energy.

7. Kosher Kush: Ghost OG, Kosher Kush, and Original Glue each hold 20% THC with varied experiences. Kosher Kush is an award winning Indica with a heavy tranquilizing influence. Ghost OG has the potency that goes with Kush genetics and hammers you with a high euphoria leading to a pleasant relaxation. And the Cannabis Cup winner Original Glue will leave you fully sedated and couch locked.

7. White Fire OG (Wi-Fi OG): Testing 21.% to 25%, White Fire OG will lift you high with a giddy euphoria and illusive creativity. A touch of diesel threads through is earthy and floral aroma and taste. White Fire OG will not relax you, so should not use it before bed.

6. The White: Named for its snow-white appearance, The White is not available everywhere. The lemon and pine effects come with a smack in the front of the head triggered by the 25% (on the average) THC content. Despite the early and heavy electric buzz, it settles into a heavily medicated benefit for reducing anxiety, stress, and pain.

5. Royal Gorilla: A CannaConnection award winner, Royal Gorilla delivers 25%+ THC. You will enjoy a short euphoric high leading to a stoner’s dream of a couch-lock sedation. It serves to erase the stress of the day and reduce sleeping disorders.

4. Green Gelato: If you like sweet flavor and aroma, you will like the Green Gelato that comes from Sunset Sherbet and Thin Mint Cookies. Its 25+% THC offers a total body high that resolves as a couch-lock chill for hours. Cookies Gelato has a high THC (average 25%) content, too. Also rich in taste and aroma, Cookies Gelato does present a more balanced experience than the Green Gelato.

3. Triple G (Triple Kush): Triple G cloaks its 26% to 28% THC) with rich flavors of berries and chocolate. It leaves user fully and deeply relaxed after an initial euphoria that lasts only a short time. Effects benefit those seeking therapy for stress, pain, and the nausea related to chemotherapy.

2. Hulkberry: Hulkberry holds High Times Cannabis Cup awards for its overall value. It is a successful hybrid of OG Kush and Strawberry Diesel for a balanced experience favoring its 28+% THC. Hulkberry produces a body high with a calming brain experience. Users recommend it for chronic pain, involuntary muscle spasms, loss of appetite, and migraines and cramps.

1. Godfather OG (Don of All OGs): Few strains can touch the 34% THC in Godfather OG strain. (You will find it at averaging somewhere above 28% at most dispensaries.) A High Times Award winner, the potency melts a powerful cerebral experience into a full body lock to treat anxiety, pain, and stress.

There’s even more –

There are other strains making the news. If you are in the market for high THC experiences, you might also look for Romulan Haze (20%), Where’s My Bike (26%), Island Sweet Skunk (19%), or Gorilla Zkittlez (24%).

Like those listed above, these strains trigger strong psychoactive experiences which can be risky for novice users. They are not strains to use throughout the day nor to use in connection with work. One way or another, they deliver deep body experiences that prohibit using machinery or driving vehicles. Nonetheless, these strains also produce therapeutic relief from pain, depression/stress, and symptoms related to cancer treatments, PTSD, and PMS.

These strains should not be used alone. The experience may be extreme for some, and those users would benefit from friends able to help. They also should not be the first choice for new users. The inexperienced may find these strains enjoyable and medically helpful, but they should start with small doses of the lowest THC level and titrate up as they build tolerance for the highs and lows in the experience.

As we end 2020, we hope to move well beyond the troubles we have experienced this year. There is a sense that 2021 just has to be better. One way or another, these strains can get you through the new year.

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