For every truly strong cannabis strain there is a book of epic stories. Consider this a mini anthology of the very best of those, because today we present you with the best marijuana strains of all time. That’s right: those few strains that inspire almost everyone who tries them to sing their praises—once they return to Earth.

The best cannabis strains have been an evolving proposition. THC levels have been on the rise for years, not least thanks to Cannabis Cup events allowed growers to prove with data who was best at producing the dankest product.

Strongest Marijuana Strains

What Makes Marijuana “Strong”?

When most people refer to strong marijuana they’re talking about strains with high THC levels. It’s a more and more popular topic, because THC levels are rising, and they have been for years.

Why? The marijuana of the 1970s may have been awesomely nostalgic, but it was often considerably less potent, too, depending on your source.

For example, if you were a police officer trying to test lots of confiscated skunk weed trying to figure out just how potent this stuff really is, you were probably seeing lots of Mexican brick weed—seedy, stemmy, mess, honestly, that didn’t typically top 10 percent THC.

The modern cannabis consumer is not trying to lay out their hard-earned money for seedy pot. Since the 1970s, growers have been breeding sinsemilla strains more often, and selecting for higher THC levels. Plant genetics are gonna plant genetic, and here we are—among a fine ocean of dank cannabis strains that regularly hit the high 20 percentages.

That good stuff is what everyone wants—and lots of us even grow it ourselves to be sure we get it. So if you’re looking to do the same, or just shopping around for the very best marijuana strains, what should head up your wishlist?

As a team we have reviewed dozens of cannabis strains readily available as of 2021. We evaluated each cannabis strain based on a variety of factors, including appearance, aroma, CBD content, effects, lineage, potency, THC content, and more.

After some heated discussions, we developed this simple list of the best marijuana strains for both medical marijuana patients and recreational users. We separated our picks into three categories: hybrid strains, indicas and indica-dominant strains, and sativas and sativa-dominant strains. Each strain has the same information so you can compare and make up your own mind.

Here are the best marijuana strains right now:

Hybrid Strains

Sativa Strains

Indica Strains

Hybrid Strains

Chemdawg Strain: The insanely pungent strain

Chemdawg

As a noob pot smoker you may not understand the powerful appeal of a pungent strain like Chemdawg—at least, not until you’re there. But Chemdawg has a lasting appeal that creates a loyal fanbase, including growers who breed generations of amazing new strains based on this acrid cultivar. For an unforgettable fuel and chemical smell, a stimulating flavor and euphoria, and a solid sense of body buzzing pain relief, people return to Chemdawg.

Type80% Indica 20% Sativa
THC LevelUp to 25%
Smell and Flavor ProfileDiesel | Pungent
Grow DifficultyModerate

Buy Chemdawg seeds from the #1 most trusted seed bank

Awards

When Chemdawg won the 2015 Cannabis Cup title in Colorado, it did so with a massive THC level of 32.13%. But this cultivar has nabbed countless titles over the years.

Genetics and history

The actual genetics here are a mystery. According to High Times, it was bred from something either called Dogbud or Chemweed, which is where the “Chemdog” spelling seems to come from. However, the two more popular versions around the way seem to be either that Chemdawg is a cross of a Thai and Nepalese sativa, or that Chemdawg was bred from the Hash Plant, Kush, and Northern Lights strains.

Undisputed: the dozens of amazing strains that have themselves been bred from Chemdawg, such as Sour Diesel, OG Kush, Chem Jack, Bubblegum Chem, Super Snow Dog, Chem Haze, East Coast Sour Diesel, Jet Fuel, and more. Why? Not just the singularly powerful taste and smell, but also the potency.

Smell and taste

Chemdawg is an utterly new aromatic and flavor experience to the uninitiated. This 55% indica-dominant hybrid is world-famous for its pungent, chemically, diesel-like scent. In fact, breeders pulled the diesel from Chemdawg to create Sour Diesel and a whole line of Diesel strains—so, thank you, Chemdawg chemical profile and earthy, diesel flavors.

Warning: in case it wasn’t obvious, this is not a stealth strain.

Effects

Chemdawg produces a powerful relaxing effect that calms the racing mind yet still leaves a very happy mood. These uplifting effects are ideal for busting up stress and remaining productive for work. Chemdawg is also conducive to composing music, making visual art, and other creative pursuits—hence its ongoing popularity along the West Coast in general and California in particular.

Medical

According to medical marijuana patient reviews, Chemdawg is ideal for coping with anxiety, appetite loss, arthritis, ADHD, depression, migraines, muscle spams, nerve pain, nausea, and PMS. These effects are long-lasting and powerful thanks to Chemdawg’s serious THC levels.

Growing

Chemdawg is an excellent choice for experienced growers, because it can be a challenge, yet it yields well and contains high THC levels of 25% or sometimes much higher—witness the Cannabis Cup results of over 32%. Typically grown indoors, Chemdawg is prone to diseases such as molds and mildew, and demands optimal conditions as it is sensitive.

Chemdawg plants also need sufficient air circulation, excellent ventilation, and the right humidity levels that will need monitoring. Chemdawg is best grown in organic soil with only conservative fertilizer use. In other words, Chemdawg is not for new growers, because it takes a high level of effort and skill.

Summary

  • Split: 55% Indica and 45% Sativa hybrid
  • THC levels: over 32%
  • CBD levels: 0.01-0.10%
  • Terpenes/other cannabinoids: Caryophyllene, myrcene, limonene
  • Parent to strains: Sour Diesel, OG Kush, many others (see genetics discussion)
  • Flowering time: 7 to 9 weeks
  • Growth level: difficult to grow, sensitive to pests and mold

Verdict

Chemdawg is a classic cultivar that offers a happy, uplifting, relaxing euphoria. It has birthed dozens of strains that are themselves cannabis staples today—mostly because of its powerful effects and uniquely pungent profile. This is the heavy-hitter of pungent strains.

Strawberry Banana: The sweet tooth’s strain

Strawberry Banana

Remember how in the 1980s they created Jolt Cola? It was a monstrosity that used this as its catchphrase: “All the sugar and twice the caffeine!” Think of Strawberry Banana as the cannabis Frankenstein for sweet tooths along those lines: all the sweet, terpy smells and flavors, and twice the THC!

TypeIndica, Mostly Indica
THC Level20% THC
EffectsCreative, Euphoric, Relaxed
Smell and Flavor ProfileSpicy, Sweet, Tree Fruit
Grow DifficultyEasy!

Buy Strawberry Banana seeds from the #1 most trusted seed bank

Awards

Strawberry Banana has been camping out on the High Times “Strongest Strains on Earth” list since it made it on. At least once the strain clocked in average THC levels of 31.62%. Even if the actual dispensary average THC level is more like 26 to 28%, Strawberry Banana is among the most predictably, proven strong cannabis strains in the world.

Genetics and history

This 70% indica-dominant hybrid was bred by Serious Seeds from the strawberry phenotype of Bubblegum and Crocket’s Banana Kush.

Smell and taste

Just like it sounds this time. Strawberry Banana was bred in no small part to have an incredible sweet and fruity taste of strawberries and bananas, which it delivers. The smell is just as sweet as the taste, and the banana in particular hits you on that exhale. This strain was made for whole-plant concentrates.

Effects

The effects from Strawberry Banana start with a cerebral rush to the head, ensuring you feel both focused and relaxed until—well, it’s over. You may experience a creative boost, and many users report euphoria. With enough of this strain, you may feel sleepy, sedated, or couch-locked.

Medical

According to customer reviews from medical marijuana patients, Strawberry Banana is a great strain for coping with ADHD, depression, insomnia, lack of appetite, pain, PTSD, and stress.

Growing

This indica-dominant strain is an easy grow even for those new to the craft. Indoors, flowering time is about 60 to 70 days, and you can expect a high yield of about 15 to 19 ounces per square meter.

Take special care after harvesting to bring out the most from this strain by curing it properly. Specifically, hang the buds upside down to cure and dry for about a week under carefully monitored conditions: 70 degrees F and 50% humidity. After this stage, seal the buds in jars—still at 70 degrees F, but this time at 60 to 65% humidity.

Summary

  • Split: 70% Indica and 30% Sativa hybrid
  • THC levels: over 31%
  • CBD levels: 0.01%
  • Terpenes/other cannabinoids: Limonene, myrcene, caryophyllene
  • Parent to strains: Strawberry Blondie
  • Flowering time: 8 to 9 weeks
  • Growth level: easy

Verdict

Strawberry Banana is known for two basic qualities: its amazingly sweet aroma and flavor profile, and its THC-content—over 31% on average at one competition, and as high as 26% in your dispensary. This sweet tooth strain will uplift and relax, and Strawberry Banana is among the reliably strongest strains available.

Gorilla Glue: The glue me to the couch strain

Cannabis bud detail (girl scout cookie haze marijuana strain) with visible hairs and trichomes

Gorilla Glue is the sticky, resin factory of cannabis strains—an extremely potent cultivar that has won over many fans with light cerebral effects and a deeper, sedating body buzz. This is one of the strongest marijuana strains today with buds that can produce up to 30% THC. Named for the fact that trimming leads to sticky scissors that barely move, glued together with resin, Gorilla Glue’s stickiness predicts that couch lock you’ll get from it later.

Type50% Indica 50% Sativa
THC LevelUp to 26%
EffectsEuphoric | Uplifted
Smell and Flavor ProfileCheese | Earthy | Pine | Pungent | Sour | Sweet
Grow DifficultyEasy!

Buy Gorilla Glue seeds from the #1 most trusted seed bank

Awards

Gorilla Glue is most definitely an award-winning strain, and it was even developed (successfully) to win the Cannabis Cup. In fact, Gorilla Glue went on to win 1st Place Hybrid in both the Michigan Cup and SoCal Cup in 2014, and 1st Place Hybrid in the 2015 Jamaica Cup. Each time this heavy-hitter is tested, it averages well over 20 percent THC content.

Genetics and history

Chem Sis, Sour Dubb, and Chocolate Diesel came together to create Gorilla Glue. Also known as GG#4 or Original Glue, it is a well-balanced hybrid strain.

Smell and taste

Gorilla Glue smells of earth, lemon, moss, and pine, with notes on the palate that are just a little sweet, along with coffee and berries. On the exhale you might catch sandalwood and other spicy, woody aftertastes.

Effects

Gorilla Glue delivers everything in the way of effects that you’d expect from something too sticky for scissors. When you are ready for that creeping body high that settles you in for the evening, Gorilla Glue is what you reach for.

Of course, it pays to remember that your head is involved too with THC levels at 30% in some places. Expect intense cerebral effects on the way toward deep relaxation. Both the body and head effects last for hours.

One of the best aspects of Gorilla Glue is balance. It’s a 50-50 indica-sativa hybrid, an even balance. But you can really get a sense of that in the effects: the euphoric, skin-tingling, giggly high on the one hand, but the ability to relax and get through some basic functions of the day on the other.

Medical

This is an excellent anytime strain for medical marijuana patients, based on their customer reviews. These users say that Gorilla Glue is ideal for treating anxiety, chronic back pains, depression, insomnia, lack of appetite, menstrual cramps, muscle spasms, nausea, pain in general, and stress.

Growing

Gorilla Glue is a truly easy grow, with or without experience. It grows outdoors in the right climate, and indoors it effortlessly produces tons of buds, assuming you just control your photoperiod as directed for the strain.

Gorilla Glue is also resistant to disease, and in 8 to 9 weeks you get a high yield of 18 ounces per square meter, or up to 20 ounces per plant outside under the right conditions. The only part to watch? Harvest time is just as sticky as you’re hoping.

Summary

  • Split: 50% Indica and 50% Sativa hybrid
  • THC levels: up to 30%
  • CBD levels: <1%
  • Terpenes/other cannabinoids: Caryophyllene, limonene, myrcene
  • Parent to strains: Cookie Glue, New Glue
  • Flowering time: 8 to 9 weeks
  • Growth level: easy, high disease resistance

Verdict

Gorilla Glue is among the strongest marijuana strains, yet it’s so easy to grow. This monster strain delivers for recreational users and medical patients alike.

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