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Top 10 Strongest Cannabis Autoflowering Strains in 2023 - Highest THC Strains

16 January 2023
If you are in search of the strongest strains look no further as we present the top 10 autoflowering cultivars in 2023.
16 January 2023
27 min read
Top 10 Strongest Cannabis Autoflowering Strains in 2023 - 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!


Learn from Sebastian Good all about the most potent auto strains you can find.

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.

2. Strawberry Banana Auto - 27% 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 Strawberry Banana 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.

Strawberry Banana Auto
5 out of 5
And for me it’s the yields as I am a medical patient and consume a lot. I also appreciate that there’s not much tolerance build-up.
Verified customer
Reviewed 26 November 2022

Thanks to her Indica and Sativa lineage, Strawberry Banana can grow as tall as 150cm, it's a fast blooming cultivar that requires 10-11 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 bold ripe banana, sweet strawberry, and overall fruity tastes. 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 150cm! 
  • 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.

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'ts risk stunting growth.

4. Gelato Auto - 26% THC

Gelato 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 one of our fastest flowering strains meaning Gelato Auto can be harvested as quickly as 9 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.

Gelato Auto
4 out of 5
I didn't think I’d harvest much at first but then I was surprised by the yield. It was 87 grams from one plant. Not bad, not bad at all.
Verified customer
Reviewed 22 July 2022

The flavor is a combination of sweet cookies, citrus, and earthy-sweet resembling ice cream. The effects can be devastatingly potent leaving you firmly locked to the couch, with enough of a cerebral edge to keep you in a creative 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.

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.

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
She is an awesome strain with a sweet and woody aroma. She grow fast . She is a really smooth smoke not hard on your throat.
Verified customer
Reviewed 21 June

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.

7. Mimosa Cake Auto - 24% THC

A cross between two terpene powerhouses due to the delicious fruity cocktail-like taste combined with a lemony background and a strong earthy 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.

Mimosa Cake Auto
4 out of 5
When I grow autoflowers I prefer to harvest them after about 70 days but this one took 12 weeks. Otherwise I enjoyed growing it.
Verified customer
Reviewed 31 July 2022

This auto grows on the taller side, reaching up to 130cm and yielding up to 550gr/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 Magnesium than other cultivars. Providing your plants with organic compost or a magnesium supplement 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. 

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.

Orange Sherbet Auto
5 out of 5
My wife says it doesn’t smell like weed at all when I smoke it on the porch. All she can smell is some kind of citrus fruit.
Verified customer
Reviewed 26 January

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.

9. Gorilla Glue Auto - 24% THC

Gorilla Glue doesn't require much maintenance while delivering up to 600gr/mof extremely chunky buds in less than 9 - 10 weeks, you will clearly see her Indica heritage on her structure and fat side branches all around.

Gorilla Auto
5 out of 5
first time ever growing and got some amazing colors from this strain with low temps ran it at about 58-64 for 2 weeks and got this color
Jackin Meoff.
Verified customer
Reviewed 26 December 2017

The buds are insanely frosty, 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 for Sativa fans or smokers with a high tolerance, the effect will have you glued to the sofa for hours and leave your face like it's melting, a really strong high that comes hand-in-hand with a delicious and very refined citrusy pine taste with a mixture of gas and lemon terpenes, a must-have for kush fans.

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.
  • Gorilla Glue reacts very well to defoliation, but don't overdo it.

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.

Zkittlez Auto
5 out of 5
Just an easy to grow, solid packed buds. A heavy feeder and can be a bit prone to light burn at the end but otherwise perfection!
Verified customer
Reviewed 21 November 2020

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.

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.

THC and CBD1 aren't the only compounds that determine the effect, Cannabis can have a variety of terpenes2 which work along the cannabinoids to provide different types of highs.

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.


Strains THC Percentage CBD From Seed to Harvest 
Gorilla Cookies Auto 28.5 Very Low  10 weeks
Strawberry Banana Auto 27 Very low 10 - 11 weeks
Strawberry Gorilla Auto 27 Very Low 10 weeks
Gelato Auto 26 Low 9 weeks
Wedding Glue Auto 26 Very Low 9 - 10 weeks
Tropicana Cookies Auto 27 Very Low 8 - 9 weeks
Mimosa Cake Auto 24 Very Low 9 weeks
Gorilla Zkittlez Auto 27 Very Low 9 weeks
Gorilla Glue Auto 24 Low 9 - 10 weeks
Gorilla Punch Auto 26 Very Low 8 - 9 weeks


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 2023! 




External References:

  1. What's the point of CBD?- Hamzelou, Jessica. (2019).
  2. Terpenes/Terpenoids in Cannabis: Are They Important? - Hanuš, Lumír & Hod, Yotam. (2020).