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Top 5 High-THC Autoflowering Strains (2023 Update)
Autoflowering cannabis strains are hardy, easy to grow, and super reliable. Many growers opt for these cultivars to achieve a near-effortless stash over a short period. But certain auto strains offer much more than just efficiency. These five varieties stand out with exceptional potency, rivalling many photoperiod strains in terms of THC.
Autoflowering strains are prized for their rapid growth and reliability. They also serve as the perfect stepping stone for beginner cannabis growers, as they’re generally resilient and easy to manage. While the auto varieties of days gone by were shunned for their lack of potency, breeders have put in some serious work over the years to rectify this issue. Now, many autos rival photoperiod strains when it comes to THC content. Below, you’ll get to know five of the strongest, most THC-rich autoflowering strains available. You no longer have to sacrifice potency for speed. Enjoy both!
ARE AUTOFLOWERING CANNABIS STRAINS WORTH IT?
We get this question a lot, and the answer is yes; autoflowering strains are definitely worth it. They are super easy to grow and can produce some spectacular bud, especially if you plant them in big pots under strong lights.
Plus, the fact that autoflowers don’t need to be pruned or trained makes them ideal for beginner growers. Their short stature allows them to fit into small indoor grow rooms or stealthy outdoor grows, and their short flowering time means you can typically pump out multiple harvests throughout the year.
TOP 5 HIGH-THC AUTOFLOWERS FOR YOUR 2023 GROW-OP
And now, thanks to our new line of genetics, autoflowering strains can finally stand up to their photoperiod competitors in terms of potency. The strains listed below are capable of producing up to 24% THC!
1. Green Gelato Auto
In 2018, Gelato was named "Strain of The Year". Green Gelato Automatic is our very own unique autoflowering version of this beloved hybrid. This is one of our most aromatic strains, and it produces massive levels of THC that’ll give even a top-shelf Haze a good run for its money.
Green Gelato Automatic boasts everything you love about our photoperiod Green Gelato strain in a neat autoflowering package. Like the original strain, Green Gelato Auto boasts balanced effects that combine a relaxing, physical stone with cerebral euphoria.
This strain is first on our list for a reason; Green Gelato Automatic can produce up to 24% THC, making her one of the most potent autoflowers on the market. You’ll only need a few hits to feel her powerful effects.
Many find Green Gelato Auto to be a great strain for creative exploits. Consider giving her a try while painting, writing, or composing music, or while socialising with friends at parties.
Green Gelato Auto is an absolute fiesta when it comes to flavour and aroma. On the nose, she’s fruity and citrusy, while boasting super sweet, slightly earthy flavours. Green Gelato Auto is also super easy to grow. She reaches a maximum height of 120cm and is typically ready to harvest 70 days from germination.
Green Gelato Auto
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Green Gelato x Cookies Auto |
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375 - 450 gr/m2 |
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70 - 120 cm |
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7 - 8 weeks |
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THC: 24% |
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Sativa 55% Indica 40% Ruderalis 5% |
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100 - 175 gr/plant |
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100 - 120 cm |
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9 - 10 weeks after sprouting |
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Clear, Physically Relaxing |
2. Cookies Gelato Automatic
This impressive auto doesn’t just pack high levels of THC; she also stands out from her peers with the stunning dark purple shades that decorate her colas, and the sensual aroma she emits. In other words, Cookies Gelato Automatic is a great example of just how far autoflowering cultivars have come.
These flowers are packed with a THC content of 23%. A thick, frosty layer of trichomes hints at the psychotropic power within each bud. Soon after hitting a joint or bowl packed with these buds, you’ll feel a heavy physical high wash across your body, leaving no muscle untended to.
Terpenes play a key role in both the flavours and effects of this autoflowering powerhouse. They help to focus the mind, preventing users from feeling too stoned, while providing gorgeous notes of cookies, earth, fruit, and honey.
How does Cookies Gelato Automatic perform in the grow room or garden? You can expect up to 500g/m² indoors under high-quality lights, and 90–140g/plant outdoors under the sun. Prepare to harvest just 10–12 weeks after germination.
Cookies Gelato Auto
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Cookies Gelato x Big Skunk Auto |
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450 - 500 gr/m2 |
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90 – 140 cm |
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8 - 9 weeks |
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THC: 23% |
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Sativa 20%, Indica 75%, Ruderalis 5% |
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90 - 140 gr/plant |
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80 - 140 cm |
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10 - 12 weeks after sprouting |
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Balanced, Creative |
3. Fat Banana Automatic
Fat Banana is a super aromatic RQS strain that produces big, dense, and resinous buds. Fat Banana Automatic is her autoflowering cousin. Indica-dominant, fast-flowering, and capable of producing up to 22% THC, Fat Banana Automatic has to be one of the most potent autoflowers available today.
Like the original, Fat Banana Automatic produces a hard-hitting body stone. She’s best enjoyed in the evening while watching a movie, listening to your favourite record, or just before bed. Don’t be fooled into using this strain during the day, as it’ll likely affect your ability to focus.
In terms of flavour and aroma, Fat Banana Automatic is very similar to the photoperiod original. She boasts a big, tropical fruit aroma with bold notes of banana and hints of mango. When smoked or vaped, Fat Banana Automatic is very sweet and smooth, making it hard to put her down.
Thanks to her short flowering time and short stature, Fat Banana Automatic is super easy to grow. She takes just 9–10 weeks to go from seed to harvest and reaches a height of just 100–120cm. Despite its size, this strain is still able to produce heavy harvests of up to 450g/m² indoors and 175g/plant outdoors.
Fat Banana Auto
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Fat Banana x Cookies Auto |
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375 - 450 gr/m2 |
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70 - 100 cm |
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7 - 8 weeks |
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THC: 22% |
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Sativa 20% Indica 70% Ruderalis 10% |
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90 - 175 gr/plant |
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80 - 120 cm |
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9 - 10 weeks after sprouting |
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Calming, Clear |
4. North Thunderfuck Automatic
Some strains are all name, and no game. Sure, North Thunderfuck Automatic has an attention-grabbing title, but she also lives up to the hype. This fast-growing variety stands out as one of the most potent autos available, with unique terpenes to boot.
Her attractive buds boast a THC concentration of 21% and provide a well-balanced effect; they’ll relax your body while elevating your mind with inspiring, creative thoughts.
Aside from sheer potency, Northern Thunderfuck Automatic’s standout feature is her terpene profile. These aromatic compounds produce a complex aroma redolent of earth, lime, and skunk—you won’t have an easy time finding this profile elsewhere.
On top of this, NTA produces a rewarding yield in no time at all. Expect an indoor return of 500–550g/m² and an outdoor harvest of 90–140g/plant within 10 weeks of germination—big potency, big flavour, and big yields!
North Thunderfuck Auto
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North Thunderfuck x Ruderalis |
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500 - 550 gr/m2 |
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90 – 140 cm |
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8 - 9 weeks |
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THC: 21% |
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Sativa 45%, Indica 50%, Ruderalis 5% |
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90 - 140 gr/plant |
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120 - 150 cm |
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10 - 12 weeks after sprouting |
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Physically Relaxing, Uplifting |
5. Mimosa Automatic
Have you ever had a mimosa? Nothing quite compares to the freshness of this beverage in the world of booze. The same applies to Mimosa Automatic when it comes to cannabis. Few autoflowering varieties come close to the mouth-watering flavours of this terpene-rich force of nature.
But Mimosa Automatic also delivers a highly potent hit, courtesy of a THC content of 21%. However, her terpenes really set her high apart, synergising with the THC to produce an energising and uplifting effect ideally suited to daytime smoking.
Mimosa Automatic treats users to flavours of citrus and diesel with every toke, making her a moreish delight that goes down great in a vaporizer, or when converted into concentrates or edibles.
To top it all off, this strain also shines during harvest time. She spends the late flowering stage pumping out resinous colas with purple and green hues, delivering around 350–400g/m² indoors and up to 130g/plant outdoors.
Mimosa Auto
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Mimosa Auto x Orangeade Auto |
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350 - 400 gr/m2 |
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100 - 150 cm |
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7 - 8 weeks |
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THC: 21% |
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Sativa 65% Indica 30% Ruderalis 5% |
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80 - 130 gr/plant |
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120 – 160 cm |
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9 - 10 weeks after sprouting |
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Clear, Uplifting |
