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By Luke Sumpter

Autoflowering cannabis strains offer beginner and advanced growers a smooth and speedy harvest. These strains inherited genetics from Cannabis ruderalis, a subspecies from Europe and Central Asia. Autoflowering genetics have become prized, as they don’t require a change in the light cycle to begin flowering. What’s more, they move from seed to harvest much faster than photoperiod varieties.

Aside from the valuable autoflowering trait, ruderalis plants don’t offer much else. They are tiny and produce minuscule yields. To circumvent this issue, breeders cross ruderalis strains with well-known hybrids to endow them with the ability to produce impressive harvests and satisfying effects.

Below is a list of the top 5 autoflowering indica strains. They offer a soothing and sedating high, and are super easy to grow!


Northern Light Automatic is the autoflowering version of the legendary Northern Light, a strain that has been rocking the breeding world for decades. The original strain was bred in the US before becoming popular in Holland, but the landraces used to create it are thought to have originated in Afghanistan. Northern Light Automatic brings together the best traits of this legend along with rapid flowering times and durable genetics. This creation grants beginners access to stellar genetics they would otherwise find difficult to cultivate. This strain produces green-purple buds decorated with shiny white trichomes. A THC content of 14% makes for a chilled-out body high that is easy to control. If you value taste, then you’re in for a treat. Northern Light Automatic offers flavour notes of earth, pine, and sweetness.

Northern Light Automatic doesn’t mess around. You’ll be the proud owner of a fully bloomed plant only 10 weeks after germination. If you plan on growing NLA indoors, expect it to reach a height of 120cm and provide a yield of around 525g/m². If you want to raise it outdoors, expect it to peak at a height of 160cm and produce up to 220g/plant.

Northern Light Automatic

Northern Light Automatic

Northern Light Automatic Royal Queen Seeds

Genetic background Northern Light x Ruderalis
Yield indoor 500 - 550 g/m2
Height indoor 80 - 120 cm
Flowering time 5 - 7 weeks
THC strength THC: 14% (aprox.) / CBD: Low
Blend 0% Sativa, 80% Indica, 20% Ruderalis/td>
Yield outdoor 170 - 220 g/per plant (dried)
Height outdoor 130 - 160 cm
Harvest time 9 - 10 weeks after planting
Effect Cerebral and uplifting

Buy Northern Light Automatic


Sometimes, you can tell a lot about a strain by its name alone. This is undoubtedly true for Quick One. The idea behind this strain was to create a cultivar ready to harvest in as little time as possible. Such a trait is desirable to small-scale growers, as well as cultivators looking to keep a low profile. Breeders achieved this innovative hybrid by crossing the autoflowering Lowryder 1 with an old-school indica. This perfect match produced a fast-flowering beast that provides a stoning high. A THC level of 13% won’t send you into space, but it’s enough to relax the muscles and catalyse a euphoric state of mind. Its funky terpene profile augments these effects with citrus flavours.

Quick One was designed for stealth growers. Indoor plants grow no taller than 60cm, and put out a maximum yield of 325g/m² after only 8 weeks from germination. Outdoors, plants grow to 60–100cm in height and stay hidden among the surrounding vegetation. Here, they’ll churn out up to 150g/plant.

Quick One

Quick One

Quick One Royal Queen Seeds

Genetic background Strong Indica x Ruderalis
Yield indoor 275 - 325 g/m2
Height indoor 50 - 60 cm
Flowering time 5 - 6 weeks
THC strength THC: 13% (aprox.) / CBD: Low
Blend 10% Sativa, 60% Indica, 30% Ruderalis
Yield outdoor 100 - 150 g/per plant (dried)
Height outdoor 60 - 100 cm
Harvest time 8 - 9 weeks after germination
Effect Physical

Buy Quick One



Royal Bluematic is loaded with flavour. This is the autoflowering version of Blueberry, a legendary strain famed for its vibrant taste of forest fruits. Blueberry is a brutally potent indica-dominant strain. The fruity flavours and tranquillising high made a significant impact on the competition circuit, where it won “Best Indica” at the High Times Cannabis Cup in 2000. Its 14% THC content and medium CBD level are a superb combination to unwind with in the evening. RQS' breeders decided to transition these stellar genes into the autoflowering world. Now, its peaceful effects and unmatched tastes are much easier to obtain.

Royal Bluematic produces relatively large flowers. Its buds feature broad sugar leaves that are perfect for hash making. Indoor plants grow to a height of 60–75cm and produce a rewarding yield of up to 475g/m². Plants grown outdoors favour a mild climate, peak at a height of 100cm, and yield 70–120g/plant. You’ll be trimming these flowers only 8–9 weeks post-germination.

Royal Bluematic

Royal Bluematic

Royal Bluematic

Genetic background Blueberry x Ruderalis
Yield indoor 425 - 475 g/m2
Height indoor 60 - 75 cm
Flowering time 5 - 7 weeks
THC strength THC: 14% (aprox.) / CBD: Medium
Blend 10% Sativa, 60% Indica, 30% Ruderalis
Yield outdoor 70 - 120 g/per plant (dried)
Height outdoor 70 - 100 cm
Harvest time 8 - 9 weeks after sprouting
Effect Stoned and powerful

Buy Royal Bluematic


Growers usually have to make a tradeoff when it comes to growing autoflowering strains. It’s often a case of sacrificing THC for rapid growing times. That was until Royal Gorilla Automatic came along. This brilliant beast blew this presumption out of the water. Breeders combined Gorilla, Cookies, and a ruderalis specimen to create one of the most potent autoflowers of all time. Now, growers can experience the best of both worlds. RGA offers a thunderous indica high powered by 20% THC, in only a fraction of the time of its photoperiod predecessor. A few tokes is all it takes for the eyelids to droop, the eyes to turn red, and the appetite to surge to new heights.

As well as providing monstrous levels of THC, Royal Gorilla Automatic offers a substantial yield. Indoor plants climb to a height of 120cm and pump out around 400g/m². Plants grown outdoors reach up to 140cm and yield 170g/plant. Royal Gorilla Automatic will be ready to harvest and dry 8–10 weeks after seeds have been sown.

Royal Gorilla Automatic

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

Buy Royal Gorilla Automatic



Bubble Kush Automatic is another autoflower that comes packing heat. Its dark green, frosty nugs reach a THC value of 16%—a force to be reckoned with alongside legendary genetics. This plant is the result of combining the iconic Bubble Gum and OG Kush along with Critical Automatic. This mix of strains results in a genetic composition of 60% indica, 30% ruderalis, and 10% sativa. Bubble Kush Automatic obviously leans toward the indica side of the spectrum, and its effect reflects this. Its fast-acting high immediately grips the body and clears the head.

Bubble Kush Automatic pulls no punches when it comes to productivity. Indoor plants top out at a height of 100cm and churn out 400g/m². Plants grown outdoors reach 140cm and yield around 170g/plant. Get ready to pluck these buds only 7–8 weeks after germination.

Bubble Kush Automatic

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

Buy Bubble Kush Automatic


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