Ready to ascend to uncharted heights? Hold tight as we navigate the world of the highest THC strains of weed. Why focus on THC? Because THC is one of the key compounds dictating the intensity of your cannabis experience. We’ll cover the top 20 strongest weed strains, their effects, and cultivation details. For the seasoned smokers seeking the next level or the curious newcomers wishing to know more, this is your guide to the strongest, most potent cannabis strains around.
The 20 strongest strains of weed
The below 20 strains are the heavy-hitters, the luminaries of the cannabis cosmos. These strongest weeds are not for the faint-hearted; they’re reserved for the seasoned tokers who fearlessly dive into the deep end of galactic realm! Click on any of them to jump straight to the relevant section.
1. Godfather OG
Enter the realm of the highest THC strains with Godfather OG. With an impressive THC level reaching up to 30%, this 60% Indica and 40% Sativa hybrid promises a potent ride. When grown in an indoor, temperate, or continental climate, this average-sized plant shows its true power.
- Given its average height, Godfather OG is flexible, suitable for both small and large grow spaces.
- Techniques like LST, SOG, and topping will help you extract a yield between 500-600 G/SM.
- This strain thrives in indoor, temperate, and continental climates, and its Indica dominance enables it to withstand cooler conditions.
2. Gorilla Glue aka GG#4
Unleash the beast with the Gorilla Glue cannabis strain, one of the highest THC strains around, boasting an impressive THC level of up to 27%. This perfectly balanced 50% Indica, 50% Sativa hybrid stands tall, with a knack for flourishing indoors, in steppe and Mediterranean climates.
Gorilla Glue is recognized for its tantalizing cocktail of tastes and aromas. A pungent profile of cheese, earthiness, and pine merges with a sour, sweet undertone that fills the senses. Its effects are euphoric and uplifting, offering a high that’s gained recognition with awards at the Cannabis Cup and the Jamaican World Cup.
3. Blackberry Moonrocks
Indulge in Blackberry Moonrocks, an indica dominant hybrid that’s known to kick-start your appetite. Born from the pairing of the renowned Blue Moonrocks and Blackberry Kush, this high-THC strain not only sparks creativity but also triggers a joyful euphoria. It’s a vigor-boosting strain celebrated for enhancing stamina and energy levels.
Just as irresistible as its namesake, Blackberry Moonrocks offers a tantalizing blend of flowery, berry flavors and a hint of citrus note.
- With its robust, compact stature, this strain is suitable for both small and large grow spaces. For indoor growing, wide, vertical spaces are best, coupled with the ScrOG method to enhance lower flower growth.
- This strain thrives under optimal conditions indoors or outdoors. If grown outdoors, aim to sow seeds in April (for northern hemisphere growers) to ensure a mid-October harvest. For indoor growth, ensure access to LED lighting, clean air circulation, and a quality carbon filter.
- Maintain optimal temperature and humidity levels. Keep daytime temperatures between 68℉-80℉ and reduce nighttime temperatures by 7℉-9℉. Blackberry Moonrocks prefer a relative humidity level of 55%-60% during the vegetative phase, reduced to 40% during flowering, and even lower to 30% by harvest time.
4. Bruce Banner
Dubbed after the comic book character Bruce Banner, this cannabis strain mirrors his explosive alter ego, ‘The Incredible Hulk’, more than his milder identity. Boasting a formidable THC content around 30%, Bruce Banner commands respect. This is a Sativa-dominant hybrid, delivering a euphoric haze rather than a sedative effect.
Winner of the 2013 High Times Cannabis Cup with a record-setting THC level at the time, Bruce Banner has made a name for itself as one of the most potent marijuana strains. Bruce Banner #3 is a must-try for aficionados appreciating strongest strains of weed.
- Space and Training: Bruce Banner thrives in large spaces due to its impressive height. Techniques like LST, or topping are recommended for indoor growing to control its growth and improve yield.
- Climate: Bruce Banner prefers a warm, dry climate. While it can adapt to various conditions, this strain will truly flourish and provide larger yields under optimal climate conditions.
- Harvesting: With an 8-10 week flowering period, indoor growers can expect substantial yields. Outdoor growers in suitable climates can expect even larger yields by the end of September, especially when the plants are given ample space to stretch their branches.
5. Girl Scout Cookies
Imagine a list of highest THC strains without Girl Scout Cookies (or GSC), a powerhouse Californian strain born around 2010. This delightful concoction is the offspring of Durban Poison and OG Kush, marrying the best traits of both indica and sativa. GSC is sometimes called Berner Cookies, named after rapper Berner, rumored to be its creator.
This legend of a strain has quickly become a global favorite, blending an uplifting sativa buzz with a relaxing lull that sends you into dreamland. Prepare for an initial cerebral jolt, followed by a mellow full-body stone. With one puff of GSC, you’ll feel as carefree as a kid on a summer break!
- Space and Training: Considering GSC’s medium height, both small and large grow spaces are suitable. LST or SOG methods will help optimize yield indoors.
- Climate: This strain thrives best in sub-tropical, temperate, or warm climates. It’s resistant to mould and pests, making it suitable for various environments.
6. Fat Bastard
Born from the spirited union of Goldmember and Monkey Spunk, the Fat Bastard strain promises an enthralling dance of hybrid effects. With a THC concentration hovering between a whopping 30% and 38%, it masterfully navigates the best of both indica and sativa worlds, offering an evenly tuned, cosmic high.
The taste is a rich symphony of fruity and skunk undertones that makes each puff a delight. As for its looks, let’s just say Fat Bastard is the moon rock of the cannabis family.
- Grow Spaces: Given its compact nature, Fat Bastard can fit well in smaller spaces.
- Pruning Techniques: The Screen of Green (ScrOG) technique helps produce a uniform canopy to enhance light exposure and boost lower flower growth, thereby enhancing overall yield.
- Climate and Nutritional Needs: Fat Bastard plants thrive in a temperature range of 68℉-80℉ during the day and around 7℉-9℉ cooler during the night. Humidity levels should be kept around 55%-60% during the vegetative phase and around 40% during the flowering phase.
7. Skywalker OG
Ever wondered what kind of magic unfolds when two cannabis titans cross paths? Enter Skywalker OG. A prime result of crossing Skywalker with OG Kush, this strain is every bit as premium as its legendary parents.
Sky Walker OG boasts potent Indica effects, manifesting in dreamy, euphoric highs. It’s going to send you sky-high with an out-of-this-world buzz. Renowned for its mood-elevating prowess and body-relaxing magic, it offers an equal measure of tranquility for both mind and body. Imagine floating on a cloud that gradually descends into a blissful state of relaxation, perfect for your pre-bedtime routine.
- Grow Spaces: Skywalker OG has a preference for sunny, open spaces. While indoor growing is possible, this plant thrives in outdoor environments due to its need for plenty of sunlight. Keep in mind that this plant requires lower humidity levels for optimal growth, making dryer climates more suitable.
- Pruning Techniques: Given its Indica dominance and need for ample space, techniques such as LST (Low Stress Training), SOG(Sea of Green), or even topping could help potentially increase yield. Regular maintenance such as defoliating could also assist in preventing mold buildup, especially in outdoor settings.
- Climate and Flowering Needs: Skywalker OG is most suited to Steppe and Mediterranean climates, with a resilience to mold that makes it adaptable to various weather conditions. Careful monitoring of the plant’s lifecycle is necessary due to its vegetative stage of 4-8 weeks and a flowering time of 9-10 weeks. This strain requires a consistent temperature of 20-27°C for optimal growth.
8. Do Si Dos
Do Si Dos, a predominantly Indica hybrid strain with a star-studded pedigree, is another strain with highest THC content. Being a lovechild of the renowned Girl Scout Cookies and Face Off OG, this dynamo boasts over 25% THC, ensuring a deeply relaxing Indica experience.
First toke? Expect a tingling, uplifting high. As you continue, a tranquilizing calm descends, leaving you delightfully numb. Yet, amidst the potent sedation, an uplifting undertone prevails, making Do Si Dos an excellent antidote for stress, depression, or anxiety. Dive into a session with Do Si Dos, and you’ll soon find worldly worries dissipating into thin air.
- Suitability to Grow Spaces: This strain is well suited for both small and large grow spaces. Its compact growth structure and limited stretching during the flowering stage makes it an excellent choice for indoor grows.
- Pruning Techniques: Techniques like Low Stress Training (LST) or Sea of Green (SOG) could be beneficial to maximize light exposure and encourage higher yields.
- Climate and Flowering Needs: The strain is well suited to tropical, subtropical, and warm climates, with pest resistance adding to its resilience. It also seems to do well in semi-tropical and temperate environments, making it versatile across different climatic conditions.
9. Gorilla Sherbet
Looking for a THC rich strain that’s simultaneously uplifting and suitable for daytime use? Meet the cannabis celebrity, Gorilla Sherbet, a triumphant blend by Sensi Seeds, combining the strength of Gorilla Glue #4 with the vivacious spirit of Sunset Sherbert.
This strain proudly flaunts its high yield and high THC prowess. A puff of Gorilla Sherbet guarantees an instant full-body thrill, leaving you on cloud nine, brimming with euphoria and a splash of creativity.
- Gorilla Sherbet thrives in both small and large spaces. Given its height, it adapts well to different growing environments.
- This strain suits the Screen of Green (ScrOG) method, increasing the size of the lower flowers, and promoting uniform growth, which ultimately enhances yield.
- Being indica-dominant, Gorilla Sherbet is versatile and can handle a variety of climates, but it especially thrives in cooler conditions.
Meet Gelato, a.k.a. ‘Larry Bird’, a potent blend of two California favorites: the Thin Mint Girl Scout Cookies and Sunset Sherbet. This combo results in a THC titan, capable of sending seven veteran smokers off to dreamland.
Being one of the strongest strains of weed, Gelato is a must-try for those seeking an extremely potent, yet flavorful strain. Gelato offers virtually no CBD, but it more than compensates with its high THC levels and exquisite taste. If you’re a grower craving a potent and tasty strain, Gelato is your ticket.
- Growing space: Gelato’s compact and robust nature makes it suitable for both small and large grow spaces.
- Training: Using the ScrOG (Screen of Green) method will help to maintain a uniform plane and enhance the size of the lower flowers, thus increasing yield. This strain responds well to high-quality substrates such as perlite, peat, or coco coir. These substrates will aid in retaining moisture, crucial for this strain’s development.
- Climate & conditions: Gelato Feminized plants prefer lower humidity levels, gradually decreasing from 55%-60% during vegetative phase, to around 40% during the flowering phase, and as low as 30% by harvest time. The temperature should be maintained between 68°F and 80°F during the day and 7°F-9°F cooler during the night.
11. Sunset Sherbet
Sunset Sherbet, a splendid indica-leaning hybrid, promises a zesty citrus profile paired with an uplifting high. Born from a blend of Girl Scout Cookies and Lemon Skunk, this flavor-rich strain boasts THC levels between 18% and 25% and teases the nose with an aroma varying from fruity to skunky.
Easy to grow, Sunset Sherbet thrives in both indoor and outdoor settings, though they favor sun-drenched, balmy conditions. With their compact form, mid-sized foliage, and bushy stature, they’re an attractive choice for green thumbs of all experience levels.
- Growing space: Sunset Sherbet is better suited for larger grow spaces as it can grow tall easily. Ensuring sufficient space allows for greater light penetration, ultimately enhancing yield.
- Training: Regular defoliation and pruning will help manage its robust growth and improve overall yield. It’s vital to be consistent with these practices, correcting small mistakes promptly, as the strain is forgiving if problems are addressed in time. Furthermore, maintain a strict irrigation schedule and be mindful of potential pests like mites or fungi for the best results.
- Climate: Sunset Sherbet performs well both indoors and outdoors, but its growth can truly flourish in a mild, Mediterranean-like climate with ample sunshine. Keeping the temperature around 70°F (21°C) ensures optimal development.
12. Apple Betty
Time to meet Apple Betty, a heavyweight champ in our lineup of the highest THC strains. Sporting a whopping 33% THC, she’s not one for the rookies! Born from a regal lineage of Chem’s Sister, Sour Apple, and Chocolate Diesel, Apple Betty brings an experience straight out of a 60s acid test.
One puff, and even the most seasoned tokers will be gobsmacked by the blissful tsunami she serves up. Once you’re caught in her warm, couch-locking embrace, she’ll whisk away your worries with a surreal psychedelic twist. But the real cherry on top? Her delectable flavors. Think wood-fired apple pie, sprinkled with hints of cinnamon and chocolate.
Don’t let her sweet demeanor fool you though, Apple Betty grows into a sturdy, medium-sized plant, dishing out bumper harvests.
- Growing space: Apple Betty can grow quite tall, so it’s best suited to larger grow spaces. Space your plants well in indoor environments. This strain has thick, bushy branches, and good airflow is crucial for healthy growth and disease prevention. Ensuring proper spacing helps manage humidity levels and reduce the risk of mold and mildew.
- Training & pruning: Employing Low-Stress Training (LST) can optimize plant height, making it adaptable to your specific growing environment, and promoting better light exposure which enhances yield.
- Stealth growing: As the plant emits strong aromas, using a carbon filter for indoor grows ensures a discreet grow.
13. Purple Kush
Don’t be fooled by the petite stature of Purple Kush, also known as “PK.” This resilient strain is a mainstay on the list of highest THC strains, offering a heady, tranquil buzz that takes relaxation to new heights. Born from the superb genetics of Purple Urkle and OG Kush, this purple-hued beauty yields dense, richly colored buds and has found a home in gardens worldwide.
Purple Kush isn’t just a powerhouse of THC content; it’s also a robust plant favored by the cannabis community. It blooms bountifully within 8 to 10 weeks, making it a highly rewarding choice for growers. Its unique taste and aroma add to the appeal, rounding off a true cannabis classic.
- Climate, temperature and humidity: Purple Kush is a compact, bushy plant and thrives well in cool climates. Keep the temperature between 65 and 75 degrees Fahrenheit for optimal growth. Manage the humidity levels carefully. Start with 55%-60% during the vegetative phase, reduce to around 40% during flowering, and by harvest time, lower it to 30%. If grown outdoor in the northern hemisphere, sowing seeds in April for an October harvest can contribute significantly to yield optimization.
- Training: Consider a hydroponic setup for Purple Kush. This method provides the plant with necessary nutrients directly and can lead to robust growth and potentially higher yields. Using the Screen of Green (SCROG) technique can help manage its bushy growth and increase yield.
14. Black Gorilla
Combining the potency of Gorilla Glue and the allure of Bright Berry, Black Gorilla ranks among the top Indica-dominant strains with a skyrocketing level of psychoactive potential. This dark beauty woos with an earthy aroma, undercut with the unexpected sweetness of strawberry bubblegum.
Perfect as a stress-buster after a grueling day or intense weekend play, Black Gorilla offers a long-lasting, body-focused high that’s also recognized for its pain-relieving properties. For those seeking spiritual elevation, some even find it to be an excellent meditation aid.
- Growing space: Due to its small height, Black Gorilla strain is ideally suited for indoor or outdoor growing with limited vertical space. Regular pruning and trimming will keep the plant healthy and promote growth, making it suitable for those with moderate growing experience.
- Training: To get the biggest yield out of the Black Gorilla strain, use topping techniques. By trimming the tops, you can encourage lateral branching, which leads to more bud development. Regular pruning of the lower branches and leaves will enhance airflow and light exposure, further boosting yield.
- Climate: Black Gorilla prefers a temperate climate with ample sunlight and good air circulation. It’s sensitive to humidity, so indoor growers should ensure proper ventilation to avoid mold and mildew. Outdoor growers should choose a location that can provide similar conditions and take measures to manage humidity levels.
Meet Runtz, a small wonder amongst the most potent weed strains and an Indica-dominant hybrid that’s sure to make your taste buds do a happy dance! Its buds pack a citrus punch, boasting earthy undertones that create a flavorful fiesta in your mouth.
This little heavyweight is a relaxation powerhouse. Thanks to its THC levels, one puff ushers you into a euphoric haven while its Indica prowess takes relaxation to a whole new level. Ignite this sugar-coated delight, let its sweet floral fragrance fill your space, and buckle up for a trip to Blissville!
- Growing space: Runtz Cannabis seeds are versatile and can adapt to both indoor and outdoor growing. Given the vertical growth associated with its Sativa genetics, growers should provide ample vertical space and appropriate support structures like wire cages or trellis netting.
- Training: Regular topping and pruning are recommended to maximize light exposure and ventilation for lower buds. This strain responds well to high-stress training, SCROG and SOG growing methods, making it a suitable choice for growers with intermediate skills and knowledge. Due to its high nutrient demand, ensure a consistent supply of water and nutrient-rich soil while being cautious of potential root rot or nutrient burn.
- Climate and growing conditions: Runtz thrives best in a Mediterranean climate with plenty of direct sunlight and warmth. While the strain is resilient and can adapt to most climates, maintaining a photoperiod light cycle of 12 hours light and 12 hours dark is crucial to initiate flowering. Given its preference for warmer environments, it’s more likely suited for growers in regions with hot, dry summers or indoor growers who can control the environmental conditions.
16. Granddaddy Banner
When two titans of the cannabis world, Granddaddy Purple and Bruce Banner, are crossed, they give birth to the super strong weed known as Grandaddy Banner. This strain stands out as one of the strongest strains of weed, producing an exceptionally potent THC-rich crop.
Grandaddy Banner’s flavor takes you on a journey from deep, earthy tones to a delightful crescendo of sweet floral nuances. Brace yourself for its effects; it’s known to summon a fit of giggles, intense munchies, and even a case of the infamous couch-lock.
It’s not just about leisure with this strain, though; Grandaddy Banner is celebrated for its therapeutic qualities too. It offers an uplifting yet focused high, and is often claimed by users to help with soothing muscle tension and easing anxiety – it is the ideal strain for those seeking a powerful nighttime remedy.
- Growing Space: Grandaddy Purple x Bruce Banner feminized seeds can thrive both indoors and outdoors. For indoors, wide, vertical spaces are recommended. Use the ScrOG (Screen of Green) method to maintain uniform plant height and improve the size of lower flowers, thereby boosting yield.
- Climate & Temperature: This strain can adapt to most climates due to its hardy nature, but a Mediterranean climate with ample sunshine and moderate temperatures is most ideal. Keep daytime temperatures between 68°F-80°F, and nighttime temperatures around 7°F-9°F cooler for optimal growth. Control of humidity is crucial, with levels recommended at 55%-60% during the vegetative phase, reduced to around 40% during flowering, and down to 30% at harvest.
- Other Growing Conditions & Training: For optimal results, provide a quality substrate for moisture retention such as perlite, peat, or coco coir. Ensure consistent nutrient supply during all growth stages. High-stress training methods are highly recommended for this strain. This technique helps optimize light distribution, encourages horizontal growth, and increases overall yields.
17. Alien OG
Get ready for lift off with Alien OG, a celestial mix from the West Coast, and one of the highest THC strains out there! This high-flying indica-dominant hybrid packs a cosmic punch with THC levels reaching a stratospheric 22-28%. Its powerful genetics deliver a cerebral journey that’s like socializing with aliens at a Milky Way gala. With just a few tokes, you’ll be the life of the Martian party, but watch out for that Indica tractor beam pulling you into a deep relaxation mode.
This space oddity also dons beautiful lime-green buds that smell like a Martian forest – a zesty blend of citrus and pine with a spicy, earthy undertone. The taste is like savoring hash at an intergalactic cookout, rich with earthy spices and pine, and a hint of ripe Martian orange.
- Growing space: Alien OG plants are compact making them well-suited to small spaces or indoor setups where height management can be an issue. Consider pruning the dense foliage to increase airflow and direct more energy towards bud production.
- Training: To maximize yield, this strain benefits from techniques like Low-Stress Training (LST) or Sea of Green (SOG). These methods encourage the plants to produce more buds, leading to a larger harvest. Be aware that growing Alien OG requires some skill and consistency for the best results.
- Climate: Although hardy, Alien OG prefers a warm, dry, and sun-drenched climate, akin to Mediterranean conditions. Outdoor growing should be limited to regions with such weather. For those in less favorable climates, indoor or greenhouse growing is advised.
18. THC Bomb
Renowned for its explosive power and a THC content exceeding 25%, THC Bomb is an impressively potent tool for tackling various conditions. It’s a balanced Indica-dominant hybrid, offering a serene body buzz without being overpoweringly strong.
This powerhouse Indica strain induces profound relaxation, even couch-lock, with an initial euphoric rush transitioning into a substantial full-body stone.
- Growing space: THC Bomb is an excellent strain for both small and large grow spaces due to its medium height. Its strong and vigorous nature makes it ideal for small spaces. Growers should keep the plants well-trimmed and pruned to ensure a generous harvest.
- Training: Techniques like Low-Stress Training (LST) and Sea of Green (SOG) methods are suitable for this strain. These techniques will encourage more buds to develop, leading to a larger harvest. Since THC Bomb has a faster finishing time, it would be beneficial to maximize this period for a higher THC content.
- Climate: THC Bomb can handle a range of climates. For best results, consider an environment that mimics Mediterranean conditions, with warm, long summers.
19. White Fire OG Auto
Rounding off our lineup of the highest THC strains, the autoflowering variety, White Fire OG, deserves a special mention. It offers an invigorating, cerebral buzz, along with a noticeable aroma that tingles your senses upon opening the container and igniting its potent smoke. Many claim that it has the power to alleviate stress and depression symptoms, paving the way for relaxation and focus.
In a similar vein to its predecessors, the White Fire OG Auto Fast Version showcases a predominantly sativa high. It initially provides an uplifting mind buzz that swiftly transitions into an ecstatic, creative rush, keeping you active.
This strain exudes a scent akin to spiced fruit with lemony earth hints. The fruity essence amplifies upon smoking, merging with a basil-like aroma. The exhale imparts a mild coffee flavor, paired with the richness of fresh soil.
- Growing space: White Fire OG can grow both indoors and outdoors. This strain can accommodate both small and large grow spaces, as long as the plant’s environmental needs are met.
- Training: Training techniques like Low-Stress Training (LST) could be advantageous for this strain to encourage a larger yield. Given its sensitivity to soil acidity, regular monitoring and adjustments might be needed to maintain optimal growth conditions, allowing the plant to channel its energy to bud production.
- Climate and other growing conditions: Due to its sensitivity to acidic soil, ensure the use of a neutral pH potting mix to optimize nutrient absorption and overall plant health. This strain thrives in sunny, warm, and dry climates, much like the Mediterranean environment. If you are in a colder or more humid climate, consider growing this strain indoors where climate control is easier.
Step right up and taste the rainbow with Zkittlez, a starlet in the cannabis scene since 2015. It made quite a splash, scooping the ‘Best Indica’ title at the 2015 High Times Cannabis Cup in Michigan. Named after everyone’s favorite fruity candy ‘Skittles’, this strain isn’t just a flavor fiesta, but it packs a potent punch with up to 25% THC. Zkittlez steals the show with its vibrant, multicolored buds, making it a visual treat as well.
While its THC content may not be as high as other in this list, Zkittlez still deserves a standing ovation. If you fancy a sweet, fruity tasting cannabis strain with a one-way ticket to dreamland, Zkittlez has got you covered!
- Growing space: with its compact and bushy growth, Zkittlez is well suited for small growing spaces and performs exceptionally in Sea of Green (SOG) setups. This strain is beginner-friendly and can be easily trained to maximize its yield.
- Training: Low-Stress Training (LST) would be beneficial for this strain. This will not only keep the plant compact but also ensure all buds get equal light exposure, leading to a higher yield.
- Climate: Its ability to adapt to different temperatures makes it suitable for a variety of climates but Zkittlez prefers a hot, humid climate. If you want to tease out its purple, Indica side, cool overnight temperatures, no lower than 50 degrees Fahrenheit, are required. However, an indoor setup might be easier for manipulating these specific temperature requirements.
Why choose highest THC strains
Why choose potent cannabis strains, you ask? Well, imagine diving into a deep sea of relaxation instead of just dipping your toes in the shallow end. More potent strains can offer a richer, more dynamic experience. Plus, they get the party started quicker and keep the good vibes rolling longer.
Given the stronger effects, you will need just a small amount of these powerful pals to reach your happy place. This can make potent strains more cost effective in the long run.
If you are a seasoned cannabis connoisseur, you will find high THC strains a real hoot! Since your body has built up a bit of a tolerance, one of these highest THC strains potent will be more effective in achieving the desired effects than other less potent candidates.
How do certain strains achieve such high THC levels?
The answer lies in innovative breeding and meticulous cultivation techniques.
You’ve just explored the 20 highest THC strains, unveiling secrets on genetics, growth, and effects. This knowledge helps you make informed decisions for your next cultivation project, ensuring thriving plants and maximum yield. Take these insights, apply them to your garden, and watch success unfold. Enjoyed this article? Found it insightful? Your fellow growers might too. So, don’t forget to like and share this article. Spread the wisdom!