Top Cannabis Strains 2019: Strongest & Highest THC

Each strain of cannabis carries a unique flavor profile and range of effects, which are only amplified by plant genetics and growing conditions.  New cannabis strains sweep into vogue like fashion trends. Breeders constantly refine last year’s award-winners or combine them with something novel, setting off the next round of hype. If you take a closer look at the history of cannabis, you’ll notice that pot is getting more powerful each year. In 2003 the average level of THC in marijuana was around 6.4%, but in 2019, these estimations are above 15%. It means that we’ve contributed to the greater potency of weed over the years of marijuana production, and thus we can enjoy the strongest selections of strains ever. As multibillion dollar commercialization ramps up, gardeners and smokers alike are enjoying a golden age of cannabis flavors and effects.

Below is a list of the best strains to check out in 2019 and if you want to experience a powerful high or simply crave more THC in your life, consider trying one of the following strains.


It’s no wonder Gorilla Glue is our top-selling strain. This hardy hybrid packs all the resiny flavor of the original into an autoflowering form that still maintains the tell-tale bud structure of its clone-only ancestor.

Gorilla Glue hits fast with an energetic euphoria that paradoxically leaves you relaxed. It’s the perfect strain to unwind with after a long day. Just be sure to have a clean bowl, fresh water in your bong, or papers ready, because you don’t want anything to cover up the sweet, lingering flavor imparted by the smoke.


One of the world-famous classics, White Widow is still considered one of the most potent strains of all times. it has had critical acclaim across the globe way before it was legalized in the USA. This strain is a hybrid that was invented in the Netherlands by Green House Seeds way back in the 1990s.

This hybrid is a cross between Brazilian Sativa Landrace and South Indian Indica, known for delivering powerful euphoric bursts, sparking a cerebral effect by boosting conversation and creativity.

Although White Widow has inspired the likes of White Russian, Blue Widow and White Rhino, this is still one of the most popular strains for cultivators and cannabis enthusiasts alike, taking about 60 days to grow indoors.


Another world-wide phenomenon, Girl Scout Cookies set the US west coast cannabis seen ablaze, and Fast Buds was thrilled to roll out our autoflowering version. While GSC reaches levels of 22% THC, the secret to its magic is another cannabinoid THCV. Made famous by GSC direct ancestor, Durban Poison, THCV is a potent stimulant cannabinoid that paradoxically reduces THC induced anxiety. Girl Scout Cookies isn’t just another high-THC hybrid, the THCV keeps the paranoia at bay, allowing everyone to get ripped without worrying about a freakout.


With all its popularity the origin of this flower is widely debated, but one thing for sure it is loved by many. It possesses medium to large nuggets which are considered dense with Indica like structure. Back in 1996, OG Kush first arrived in L.A. It was brought by Matt “Bubba” Berger and was given to Josh D, a legendary cultivator, who used this hybrid to create a huge number of prominent strains including Headband and GSC. It is famous for its potency, with a THC level of between 20%-25%. If you’re looking for a powerful and potent strain, OG Kush will tick all your boxes. 


The popularity of this strain dates back to 1992 when it was developed in the Netherlands by Serious Seeds. The powerful nature of this strain has made it become a multiple award winner. The AK-47 has a proportion of 65% Sativa and 35% indica and produces plants that have a balance of 20% THC and 1.5% CBD The high from the AK-47 is more durable than other hybrid marijuana strains. The high relaxes the body and mind for about 3-4 hours, and it gives the consumer more motivation to accomplish objectives.

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