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Top 10 Strongest Cannabis Autoflowering Strains in 2024 - Highest THC Strains

05 March 2024
If you are in search of the strongest strains look no further as we present the top 10 autoflowering cultivars in 2024.
05 March 2024
26 min read
Top 10 Strongest Cannabis Autoflowering Strains in 2024 - Highest THC Strains

In a market place so heavily dominated by numbers and statistics, many people are in search of the most potent Cannabis the planet has to offer, especially if you smoke a lot.

If you're an avid cannabis consumer it's most likely you want to grow the most potent genetics available, knowing which strains to cultivate is not always straightforward, so we have created a shortlist of the 10 strongest autoflowering strains on the market created for those with the highest tolerance!

Always keep in mind that the cannabinoids found in cannabis plants work synesthetically with other chemical compounds such as terpenes and flavonoids; You might have heard of Limonene or Myrcene…these are just two of the eighty to a hundred terpenes found in cannabis plants and are also responsible for the type of effect you perceive.  For example, strains with a high Limonene content will provide a more energetic effect while strains high in Myrcene will provide a more relaxing, calm high so make sure to also take a look at the terpenes found in the specific strain as they are as important as the THC and CBD contents!

That said, take a look at our Top 10 Strongest Autroflowering Strains; All of these strains offer unique powerful effects that may be more cerebral, corporal, or a mix of both but in all cases will be extremely potent for those who want a long-lasting effect that takes you to the moon and leaves you there.

1. Gorilla Cookies Auto - 28.5% THC

Gorilla Cookies produces extremely dense and potent buds, it develops several side branches that end up completely enveloped in silver-coated chunky buds. She grows bushy and tall, reaching up to 150cm and producing around 650gr/m2  in around 10 weeks.

Gorilla Cookies Auto
5 out of 5
I got 134g off this gal growing in 3 gal pot with 24 hours of light. i'm stoked with the result! Smells like diesel. Was a great grow overall.
Verified customer
Reviewed 9 December 2022

The beautiful buds with dark and light shades of green, pack a punch with 28.5% THC and a delicious elaborate blend of earthy kush flavors with minty and citrusy undertones that result in a very delightful cerebral effect that slowly transforms into a potent body high that will leave you relaxed anywhere, perfect for clearing your mind after a hard day of work.

Grow Tips

  • Make sure you control and adjust the ph levels so you don't affect plant growth.
  • Due to the extremely dense buds, it's advised you provide support to the branches.
  • We recommend gradually increasing the nutrient dose starting on week 3 as she can take a big feed.


“ of the gorilla cookies, turned completely purple and orange, and man, if you get this pheno, you can consider yourself in luck because you will have the best taste to be found in a cannabis plant, fruity sweet and "kush'ish" flavour, brings your taste buds will be lit aswell…”

2. Papaya Cookies Auto - 29% THC

By crossing together two of the most delicious strains, the result could only be a terpene-rich, knockout strain that will keep you zoned out for hours. Not only does Papaya Cookies Auto produce some of the most complex terps you have ever encountered, but she is a massive yielder making her a must-have for true connoisseurs.

Papaya Cookies Auto
5 out of 5
Must-try on my list, for sure! What better than sweet fruity cookie dough, Looks just dope with its potency and everything, can't wait
Verified customer
Reviewed 18 March

Thanks to her Indica and Sativa lineage, Papaya Cookies Auto can grow as tall as 120cm, it's a fast blooming cultivar that requires 8-9 weeks before harvesting. A very easy-to-grow strain perfect for beginner growers and commercial growers in search of world-class genetics. An excellent strain for those who suffer from slightly hotter climates. The flavor is a sweet cookie dough taste with bold ripe papaya. The effects are deeply relaxing and motivating without being too physically heavy.

Grow Tips

  • Make sure to have enough vertical space because this strain grows up to 120cm! 
  • Pay close attention to the branches and provide support if needed.
  • Flush thoroughly during the last week before harvest to enhance the fruity terpenes even more.


“Papaya Cookies is sooooo strong - yet she is still not a Couch Lock Strain. She got me flying high for hours the first time I tried her and ever since she is the strain I turn to when I need an extra boost in THC. I love the Fruity Terpenes and how rock hard her Nuggets get. On top of that she is incredibly frosty and has an amazing bag appeal…”

3. Strawberry Gorilla Auto - 27% THC

Thanks to its Indica heritage, Strawberry Gorilla Auto grows very symmetrically branching with large and thick fan leaves that will be completely covered in trichomes near its life cycle and can grow up to 150cm while yielding around 600gr/m2.

Strawberry Gorilla Auto
5 out of 5
It’s 7th week from seed and I’m already flushing. The buds look tight and smell awesome. Two more weeks tops and it’s chop day!
Verified customer
Reviewed 9 September 2022

This one is amongst the strongest Indica-dominant strains and produces super-chunky and charming buds with purple, yellow, and pink hues that make her an extremely attractive cultivar. You can expect this cultivar to smell like a skunky strawberry candy with a complex mixture of berry, cookie dough, and creamy flavors that will relax your body while leaving you centered and with a feeling of well-being without being extremely relaxing.

Grow Tips

  • We recommend a little bit of LST due to its compact structure.
  • Be sure to flush during the last 2-3 weeks to really make her colors and flavors stand out.
  • She prefers light feeding and you should control the pH level so you don't risk stunting growth.


“I was pushing my Strawberry Gorilla to the limit with lights and nutrients and she took it all like a champ and converted it into almost 190 grams of dry bud in 10 weeks from seed. The cure’s almost finished and I’ve already tested this stuff in my my bong which I washed sqeeaky clean for the occasion. The smoke is smooth and has a delicate but strong berry-like flavor, really reminiscent of strawberries. The effects made me drop on my butt and caused a giggling fit. It was hilarious!”

4. Apple Strudel Auto - 29% THC

Apple Strudel Auto is the perfect blend of Indica and Sativa lineage, making it one of the best feminized autoflower seeds, so you can expect this lady to display ultimate hybrid vigor, rewarding growers with huge yields with extreme potency. This lady is also amongst our fastest flowering strains meaning Apple Strudel Auto Auto can be harvested as quickly as 9 - 10 weeks from seed to harvest. 

Not only is she a commercial grower's dream, but she's perfectly suited for beginner growers thanks to her easiness to grow and low maintenance. A truly majestic plant that when flowering will display a multitude of colors ranging from vibrant greens to golden orange, and totally covered in trichomes.

The flavor is a combination of sweet desserts, sour terps, and a mouth-watering apple flavors that translate to a delicious apple strudel. The effects can be devastatingly potent leaving you completely relaxed from head to toe, with enough of a cerebral edge to keep you in an active mindset.

A Cali strain bred to perfection and now in auto version for those who love potent effects and unique terpene profiles, a must-try for all cannabis consumers.

Grow Tips 

  • Due to her extremely loud terpene profile, it is well recommended to use carbon filters up to the job. Especially when drying the buds, the aroma can become seriously overwhelming. 
  • Defoliating certain Indica-shaped fan leaves will help light penetrate into the canopy. This will allow the lowest parts of the plant to grow large-sized buds. 
  • Get those trim bags or sifting screens ready, as she is unbelievably resinous. A wise choice for the connoisseur hash maker or extract artist.


“Smoke report on these is taste is super smooth with hints of a creaminess. The flowers came out with either shades of purple on them or covered in red, but both density and taste the same. Sticky would be a highly understatement as they are almost sappy. I did find multiple spots where sugers have seeped out the flowers leaving a sap. Over all definitely recommended if your an indica lover it's not to couch lock but enough to know your relaxed. All 3 plants came out to a dry weight of an astonishing 270g or a little over 9 and half ounces. So an average of 3 ounces a plant I'd put it more on the heavy yielding strains. For sure a fun one from sprout to harvest I'd recommend to any level of grower. Happy Growing”

5. Wedding Glue Auto - 26% THC

An Indica-dominant strain that grows several thick side branches, completely covered in resin and with a life cycle of 63-70 days from seed to harvest. Growers can expect a resistant plant with a tall structure that can finish at 120cm in height.

Wedding Glue Auto
5 out of 5
Easy grow and she wants to live calmag poisoned her and two others I was on to it quick she is super sticky starting week 9 time of photo
Verified customer
Reviewed 18 April 2022

A combination of two truly excellent genetics that will leave your mouth watering due to the delicious terpene profile which is a blend of fruity flavors mixed with strong vanilla hints, making this strain ideal for those who enjoy a motivating and focused head buzz that slowly turns into a more deep corporal effect that calms muscle pain and promotes a peaceful state of mind.

Grow Tips

  • It is advised to stake the side branches early on, to help this strain support the heavy side branches.  
  • Better suited for more experienced growers as she can get very tall in no time.
  • A massive yielding cultivar that performs superbly in a SCROG.


“Wedding glue has a special place in my heart so it was an honor to grow this one out! I'm very happy with the results only took 71 days seed to harvest! Very potent and a really nice high. It hits you quick and last a couple hours. I love the smell of this bud it's like a mix of fruit and a hint of diesel. Highly recommend growing this strain. It's forgiving for beginners as well”

6. Tropicana Cookies Auto - 27% THC

One of the most popular strains up to date, Tropicana Cookies genetics offer huge yields and a super tall plant; This strain can grow up to 110cm, yielding up to 500gr/m2 divided into one thick main cola and multiple shot side branches. The buds display beautiful shades of green and purple, with brown-orange hairs, and a thick layer of rosing that makes them shine from afar.

Tropicana Cookies Auto
5 out of 5
So dank sticky and fruity smell full of tricoms and smooth smoke I love the terps...I recommend this strain it was really easy to grow.
Verified customer
Reviewed 5 October 2023

You can expect a powerful effect that will relax your entire body and feel like it’s melting your muscles but won’t leave you couch-locked thanks to its Sativa side which provides a pleasant head buzz that leaves you motivated and active while you enjoy the delicious sweet sandalwood and fresh lemon juice taste after every puff.

Grow Tips

  • Being amongst our larger producers, we recommend supporting all the branches.
  • It's a really sturdy strain that reacts perfectly to LST.
  • Tropicana Cookies Auto tends to take a lot of nutrients so make sure you keep her well-fed.


“This plant is absolutely out of this world. My plant has an amazing purple colour, great scent and great hardiness. The flavour is perfectly full and delicious. The effect is beautifully calming. If someone had told me when I was fifteen years old, smoking outdoor sativas with friends and festively getting a model like White Widow, that I would one day be able to grow something as special as Tropicana Cookies, I would have thought them crazy. I recommend giving this plant a try. I think I'm becoming a fan of purple varieties and look forward to trying the next purple plant from Fast Buds.”

7. Sour Jealousy Auto - 29% THC

A cross between two terpene powerhouses due to the delicious earthy and floral taste combined with a mouth-puckering sour background and a strong diesel touch as you exhale. This unique blend comes hand-in-hand with a perfectly balanced Sativa-leaning high; You’ll feel a nice body high that leaves you focused and, the more you smoke, the more you’ll feel the Sativa effect which hits strongly and will leave you motivated and talking a lot.

Sour Jealousy Auto
4 out of 5
Dwc with floraflex nutes. Decent yield and good quality buds. Terps are floral Purple buds Overall highly recommend this one!
Verified customer
Reviewed 15 February

This auto grows on the taller side, reaching up to 150cm and yielding up to 600gr/m2 so it’s great for those who want genetics that delivers in every aspect, making it a must not only for the bud production and quality of the buds but also for the resistant and easiness to grow.

Grow Tips

  • It is advised to train the plants using L.S.T to encourage more flowering sites. She is already a big producer and training will only increase yields further. 
  • This lady can take a big feed and is known for using up more nutrients than other cultivars. Providing your plants with organic compost or enough supplements will keep their health in perfect order.
  • Due to the height and growth structure, it is advised to have enough space to allow your plant to grow properly and reach its full potential. 


“Sour Jealousy is an amazing Sativa. She keeps me going during the day and is also great to go out and Party. I love the super Sour Terps that pucker up my mouth and how huge she gets. If you are searching for a modern Sativa with great yields, effects and a unique taste: She is your girl.”

8. Gorilla Zkittlez Auto - 27% THC

An Indica-dominant strain with massive yielding capabilities, that boasts a THC level of up to 27%. Despite her Sativa influence, this variety can take as little as 63 days from seed until harvest, making this potent powerhouse an excellent choice for anyone looking for monster yields of super tasty fruity, woody and doughy terps.

Gorilla Zkittlez Auto
5 out of 5
I went on a holiday for almost two weeks and trusted them to someone else and they survived. Not in the best condition haha but alive
Verified customer
Reviewed 9 January 2023

One of our taller autos that can grow as tall as 150cm with a bushy appearance, and when flowering will produce fat, swollen calyx that stacks up with a hard density. Her flavor is superb and can be described as a mix of old-school and more modern flavors thanks to the classic woody and earthy terps mixed with super sweet and fruity tastes. The effects are powerfully uplifting, and exhilarating, and will bring out your creative and well-motivated side.

Grow Tips

  • It is a good idea to tie the side branches down and really expand the growth structure. This will increase potential yields even further.
  • Be warned she is a heavy producer, so she will need some support to stop those weighted down buds from toppling over.  
  • Another intense producer of trichomes so do not waste the sugar trim and be prepared to make some amazing hash and extracts.


“...mellow or earth-shattering strong. Equally good for day and nighttime use.”

9. Guava Auto - 28% THC

Guava Auto doesn't require much maintenance while delivering up to 550gr/mof extremely chunky buds in less than 8 - 9 weeks, you will clearly see her Indica heritage on her structure and fat side branches all around.

The buds are insanely frosty and extremely terpy, giving this strain its world-famous name, you will fall in love with the dark green pointy calyxes covered in bright orange hairs. She is super potent so we recommend it to those who enjoy balanced effects or smokers with a high tolerance, the effect will have you giggling and flowing with creativity while leaving your face like it's melting, a really strong high that comes hand-in-hand with a delicious and very refined tropical guava taste with a mixture of sweet terpenes, a must-have for terp heads.

Grow Tips

  • She likes a big feed starting on week 3 so make sure you give her good-quality nutrients.
  • She can easily develop purple hues if you grow her in lower nighttime temperatures.
  • Guava Auto reacts very well to defoliation, but don't overdo it.


“She had a earthy sweet fruity with a caramel smell. She is a fruity sweet smoke. I got 146.3 grams on 1 plant. Was a good potent, and great Smelling flower.”

10. Gorilla Punch Auto - 26% THC

One of our most recent award-winning strains, Gorilla Punch offers a perfectly compact structure while growing up to 120cm. You can expect up to 550gr/mof flowers spread throughout one large main cola and several bud sites.

Gorilla Punch Auto
5 out of 5
It’s compatible with any leisure or household chores so I smoke it from the moment I wake up and till late at night on weekends.
Verified customer
Reviewed 9 September 2022

The buds display shades of green and purple hues with beautiful dark-orange hairs scattered all over; The effect is extremely long-lasting, you can expect a 3hr-long high which will start as a pleasant head-high and gradually transform into a relaxing body stone while you experience the fruity, sweet, spicy and earthy flavors with woody undertones, making it one of the best autoflowers in the market when it comes to hashish making.  

Grow Tips

  • Being one of our larger producers, we recommend supporting all the branches.
  • It's a really sturdy strain that reacts perfectly to LST.
  • Gorilla Glue Auto tends to take a lot of nutrients so make sure you keep her well-fed.


“I smoke Gorilla Punch and stop worrying about anything at all. I imagine it would be dnagerous stuff for people who need to get their shit together because after a bowl of this nothing matters. Job, relationships, credit card debt, whatever. I don’t have major problems like this but tend to worry about nothing and this weed shows me how to stop worrying and just enjoy life. Very euphoric stuff and makes you feel good about yourself.”

11. In Conclusion

If it is a couch-locking Indica that will leave you on your knees begging for more, or you want a super Sativa high, our selection of the Top 10 strongest autoflowering strains will definitely keep you busy this year.

Based on our selection of 10 strongest autoflowers now you should be definitely ready to decide on which one suits your needs this year. Here’s a quick rundown of our top 10 strongest autoflowers, just remember that as mentioned throughout the article, it’s extremely important to not only look at the THC and CBD levels but also at the terpene profile as it will give you a better idea of what type of effect to expect.

Remember that Cannabis plants produce trichomes that contain terpenes, cannabinoids, and flavonoids that work like aromatherapy and result in Indica, Sativa-like effects or a mix of both of them.This means that yes, cannabinoids such as THC and CBD, among others, are needed but in order for consumers to experience the effects we all know and associate with cannabis, terpenes, and flavonoids are as important.

Even though cannabinoids are important, it is not all that matters.  So if you're looking for a specific effect, either medicinal or recreational, it's a good idea to look for that specific terpene profile instead of looking for THC or CBD-rich strains only. Good luck working your way through this list of the strongest strains in 2024!