Here are the top 5 autoflowering strains available, that contain the most THC. Autoflowering plants are a very popular choice among pro growers and breeders. They are also popular among those growing on a small scale for nothing more than personal use, due to several genetic characteristics, that make them popular for doing so.

Autoflowering strains are created by introducing the genetics of a Cannabis ruderalis plants to a grow space occupied by either sativa or indica strains. Cannabis ruderalis adapted to colder northern climate in comparison to its cousins indica and sativa. This meant less sunlight, so it had to make the most out of the little it had in order to photosynthesis and survive. For this reason, when growing an autoflowering strain, the grower does not have to alter the light cycle, like they would have to do if the strains they are growing did not have the autoflowering trait. Autoflowering plants usually flower within a small timeframe. Plus, Cannabis ruderalis is quite small and compact, which it contributes via its genetic makeup.

Thinking about growing a strain super high in THC? Why not try one of these hard-hitting autoflowering plants for an easier growing experience? Here are the top 5 cannabis strains, that share both of these properties.

AMNESIA HAZE AUTOMATIC

Amnesia Haze Automatic brings autoflowering properties to this classical sativa variety. It contains around 50% sativa, 20% indica and 30% ruderalis genes. However, some may point out, that this may even be somewhat of an improvement. Every smoker loves a packed bowl or joint of sativa weed when a task needs doing, or when they feel their creative side emerging to write some music or paint something. The downside of some sativa varieties is the length of time it takes them to grow and eventually flower. Although some might have the meditative patience and may be void of the pressure of living in a region, that prohibits marijuana cultivation, others might be living in other conditions. For these people, they will be pleased to realise, that Amnesia Haze Automatic explodes from seed to harvest in as little as a 10 week period!

Amnesia Haze Auto

So aside from not needing to alter the light cycle, and a lightening-fast growing speed, what else can Amnesia Haze Automatic bring to smoker and grower? Well, when harvest time hastily arrives, you will be greeted by buds, that contain 18% or higher THC content, that is some strong bud. And not only this, but Amnesia Haze Automatic flowers also contain decent amounts of the cannabinoid CBD, meaning that it has some potent medicinal qualities derived from both THC and CBD, as well as promising recreational smoking potential from high THC content. If you grow your plants indoors, you can expect your Amnesia Haze Automatic crop to reach a height of 100cm and to produce a yield of around 350-400g/m². If you live in a warm and bright climate and decide to plant your green babies outdoors, you can expect them to reach heights of 120cm and to kick out yields of approximately 180g per plant when dried.

When smoking your Amnesia Haze Automatic harvest, you will experience a mixture of sweet and spicy taste sensations, accompanied by the classical taste of Amnesia strains. This will be complemented by a cerebral, uplifting and motivating psychoactive high.

Amnesia Haze Automatic

AMNESIA HAZE AUTOMATIC Royal Queen Seeds

Genetic background Amnesia x Ruderalis
Yield indoor 350 - 400 g/m2
Height indoor 50 - 100 cm
Flowering time 5 - 7 weeks
THC strength THC: 20% (aprox.) / CBD: Low
Blend 50% Sativa, 20% Indica, 30% Ruderalis
Yield outdoor 130 - 180 g/per plant (dried)
Height outdoor 100 - 120 cm
Harvest time 10 - 12 weeks after germination
Effect Cerebral and uplifting
 

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ROYAL JACK AUTO

Royal Jack Auto is the offspring of ruderalis and the legendary Jack Herer. Jack Herer is named after the greatly respected and revered author and cannabis activist, who spread the good word of hemp and its many industrial and medicinal functions, that society could reap if only it were embraced and utilised. He also attempted to expose the shady individuals, who played large parts in its damaging prohibition and suppression. The Jack Herer strain is just as potent as the individual it is named after, it is a strong sativa-dominant strain, and ruderalis genes graced it with autoflowering characteristic. Royal Jack Auto’s genetic makeup consists of 40% sativa, 30% indica and 30% ruderalis. Once again, this mix allows this strain to bless the grower with a shorter growing time frame, which can be extremely useful to individuals requiring it.

Royal Jack Auto

If you choose to cultivate Royal Jack Auto indoors then you can expect to receive a bountiful yield of up to 400g/m², with plant height peaking at only 80cm. This plant is highly functional and fruitful, small and stealthy. If choosing to grow in the great outdoors, growers can expect to see yields of up to 120g per plant when dried. With such a short time between planting and harvesting, this is an impressive yield indeed. These buds will contain 16% or more THC content, offering quite a powerful and impressive high for the smoker. Additional CBD content adds a medicinal touch. When smoking these beautiful buds, the first things you might notice is the beautiful smell, a fresh and peppery sensation. This will be accompanied by a sativa-dominant high, that will enhance creative expression and tantalising thoughts.

Royal Jack Automatic

Royal Jack Automatic Royal Queen Seeds

Genetic background Jack Herer x Ruderalis
Yield indoor 350 - 400 g/m2
Height indoor 40 - 80 cm
Flowering time 6 - 7 weeks
THC strength THC: 16% (aprox.) / CBD: Low
Blend 40% Sativa, 30% Indica, 30% Ruderalis
Yield outdoor 70 - 120 g/per plant (dried)
Height outdoor 60 - 80 cm
Harvest time 9 - 10 weeks after planting
Effect A motivating and inspiring feeling
 

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BUBBLE KUSH AUTOMATIC

Bubble Kush Automatic is the mind-blowing combination of three fantastic cannabis strains. It is the union between Bubble Gum, OG Kush and the autoflowering Royal Critical Automatic. These attributes bring together the best qualities of indica and sativa strains, all wrapped up in the beneficial and fast growing genetics of Cannabis ruderalis.

Those grows with the ambition to grow this magnificent strain can expect to see nice yields of 400g/m² when choosing to cultivate it indoors. Within such conditions this strain can reach the functional and stealthy height of about 80cm. Those growing outdoors will see yields equal to 170g per plant when the material is dried. Outdoor heights will be higher, the strain will top out at about 100cm. Buds will contain 16% or more THC.

When smoking Bubble Kush Automatic your tongue will be hit by sweet and rich flavours. The high is incredibly relaxing and induces a positive high. So, when rolling up some of this weed, kick back and relax.

Bubble Kush Auto

Bubble Kush Automatic

Bubble Kush Automatic Royal Queen Seeds

Genetic background Bubble Gum x O.G. Kush x Critical Automatic
Yield indoor 350 - 400 g/m2
Height indoor 40 - 80 cm
Flowering time 5 - 7 weeks
THC strength THC: 16% (aprox.) / CBD: Low
Blend 10% Sativa, 60% Indica, 30% Ruderalis
Yield outdoor 120 - 170F g/per plant (dried)
Height outdoor 60 - 100 cm
Harvest time 7-8 weeks after sprouting
Effect Relaxing and full of flavour
 

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ROYAL GORILLA AUTOMATIC

The word "gorilla" in a strain is a mark of its potency. The pummeling power of a gorilla is certainly the only comparison that comes to mind for our Royal Gorilla Automatic. This autoflowering version of Royal Gorilla incorporates qualities of ruderalis, sativa, and indica. While skewing mostly toward indica, there will also be a cerebral head high and quick flowering time. It will flower over 5–7 weeks, but 8–10 weeks from germination is the timeframe for harvesting. This strain is also adaptable to both indoor and outdoor cultivation. The resulting bud won't disappoint with its THC content over 20%. This will bring on a wave of happy feelings, with a head high that gives way to couch-lock throughout the body. This sensational journey also comes with a rich array of flavours. The diesel edge to this plant's aroma gives way to traces of pine, citrus, and forest fruits. Royal Gorilla Automatic has to be among the most satisfying of our autoflowering cultivars.

Royal Gorilla Auto

Royal Gorilla Automatic

Royal Gorilla Automatic Royal Queen Seeds

Genetic background Gorilla x Cookies x Ruderalis
Yield indoor 325 - 400 g/m2
Height indoor 60 - 120 cm
Flowering time 5 - 7 weeks
THC strength THC: 20% (aprox.) / CBD: Low
Blend 30% Sativa, 50% Indica, 20% Ruderalis
Yield outdoor 120 - 170 g/per plant (dried)
Height outdoor 60 - 140 cm
Harvest time 8 - 10 weeks after germination
Effect Stoned, physically and mentally
 

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ROYAL COOKIES AUTOMATIC

Girl Scout Cookies is a popular strain for its rich, toasty aroma of cookies and powerful indica high. Royal Queen Seeds has bred it with ruderalis genetics for an autoflowering plant we can stand behind. Royal Cookies Automatic is our signature variation, and it will mature with minimal maintenance. Within 8–10 weeks from seed, these beautiful buds will be ready to harvest much quicker than standard Cookies varieties. This particular hybrid is prized for its THC content surpassing 18%. This will deliver a euphoric high with delicious cookie flavours that leave a minty aftertaste. RCA is suitable for both indoor and outdoor cultivation, with the height of the plant often reaching beyond a metre tall in both conditions. Under the right outdoor growing conditions, it's reached as tall as 140cm. Get growing with our seeds and enjoy a top-notch Cookies strain much quicker than usual.

Royal Cookies Auto

Royal Cookies Automatic

Royal Cookies Automatic Royal Queen Seeds

Genetic background Girl Scout Cookies x Ruderalis (auto thunderfuck bx2)
Yield indoor 325 - 450 g/m2
Height indoor 60 - 120 cm
Flowering time 5 - 7 weeks
THC strength THC: 18% (aprox.) / CBD: Low
Blend 20% Sativa, 60% Indica, 20% Ruderalis
Yield outdoor 130 - 180 g/per plant (dried)
Height outdoor 60 - 140 cm
Harvest time 8 - 10 weeks after germination
Effect Relaxed and Euphoric

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