7 High THC Cannabis Strains

Strains that are high in THC, the psychoactive compound contained in cannabis, can deliver the most potent smoke for the ultimate in relaxation or powerful uplifting euphoria. But high THC content doesn’t just mean that these cannabis varieties can be optimal for recreational users who seek the ultimate for chilling and relaxation. These strains rich in THC can also be a good choice for those users who need very potent medicine that can help with pain relief and other medical conditions.

Generally, cannabis strains that consistently have THC levels of 20 percent or higher are considered to be very potent. Let’s take a look at some of the cannabis strains that have earned awards for their potency.

Bruce Banner

THC Range: As high as 30 percent
One of the most famed strains, Bruce Banner, aka the “Strongest Strain on Earth” according to High Times. This regular strain has been measured up to 30% of THC which should tell serious cannabis enthusiasts all they need to know why they absolutely would want to grow this legend. The head high is intensely euphoric, combined with strong creativity and a whole-body mood boost. Energy levels are high, making this a good daytime strain. Bruce Banner is a highly effective painkiller.


THC Range: 27 – 32 percent
A-Dub is an intensely potent indica dominant hybrid strain that’s an insanely dank cross between Sour Double and Alien Dawg. Because of its extremely high THC level and indica dominated genetics, it is not recommended for new users, who may experience acute paranoia and dizziness upon smoking even a small amount.

Gorilla Glue

THC Range: 25 – 28 percent
Gorilla Glue is a spectacular autoflower that shines with incredible resin production, very high potency and a superb taste. This type of cannabis is often used by those that feel a need to self-medicate. It can help with reducing chronic pain such as arthritis and chronic back pain.

Girl Scout Cookies

THC Range: 17 – 28 percent
Growers seeking the best US autoflowering genetics have just found their perfect match. Girl Scout Cookies, the absolute killer-strain from the West Coast, is now about to conquer Europe. THC levels are skyrocketing up to 28%. This strain provides the best aspects of both sativa and indica, and the high is powerful, happy, and euphoric, but with couch-lock body effects and feelings of lethargy.

White Fire OG

THC Range: 22 – 28 percent
White Fire OG is also referred to as WiFi OG. It produces frosted buds that are quite valuable to the entire medical marijuana industry. It is a cross between the White and Fire OG. It has a sour diesel like aroma with a touch of citrus. It has a sweet taste with an earthy flavour. It is considered to be one of the finest medical marijuana strains and has several benefits.

Critical Kush

THC Range: 14 – 25 percent
Critical Kush by Barney’s Farm is a very successful cross between the Critical Mass, itself a hybrid of Afghani x Skunk #1 and OG Kush, a North Californian with Chew Dawg and Pakistani Kush heritage. An Indica dominant smoke that induces a strong stone, making it a great choice for both relaxing and medical purposes.

Strawberry Cough

THC Range: 25 – 26 Percent
Strawberry Cough is a strain that holds true to its name. A sweet strawberry smell and subtle after taste is accompanied by a thick smoke that leaves even veteran tokers coughing. This strain is sativa dominant with an 80:20 sativa/indica ratio.

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