The fastest autoflowering varieties
In this blog, we present the fastest autoflowering seeds on the market, suitable for both indoor and outdoor growing.
Discover some of the fastest autoflowering seeds you can buy from our online grow shop.
Fast Autoflowering Seeds
Autoflowering marijuana seeds are the fastest cannabis genetics on the market — but even among them, some are faster than others. In this post, we’ll show you the fastest autoflowering strains in the world.
There are some incredibly fast autoflowering varieties; some of them can be harvested as early as 6, 7, or 8 weeks after germination. When buying autoflowering seeds, it’s important to pay close attention to all the details. While it’s true that some strains are very quick, you might be in for a surprise at harvest time — some may be fast, but don’t produce much. Sometimes, it’s better to wait an extra week and get a significantly better yield.
Fastest Indoor Autoflowering Strains
Indoor growing is where we can truly grow autoflowering strains at their fastest. By providing a 20-hour light cycle, our plants will grow much faster and also produce higher yields. The more light they receive, the faster they’ll grow.
The fastest indoor autoflowering strains up until 2022 are those that can be harvested in as little as 6 weeks.
Fastest Autoflowering Strains for Outdoor Growing 2023 / 2024
Attention: Seed brands often claim that autoflowering strains take the same time to grow indoors and outdoors. However, after all these years, we’ve realized that outdoors, autoflowers take about one week longer than indoors, since they never receive as many hours of light as we can provide indoors.
Still, the fastest outdoor autoflowering strains up to 2023/2024 will be ready to harvest in as little as 7 weeks of cultivation.
Fastest Autoflowers Ready in Just 6 and 7 Weeks
In this list, we’ve selected 6 different autoflowering varieties — some ready in as little as 6 weeks, and others in 7 weeks. Below, we present the fastest autoflowering plants.
Sweet Skunk Auto
Sweet Skunk Auto by Sweet Seeds is a third-generation feminized autoflowering marijuana seed. It’s Sweet Seeds’ tribute to this classic and beloved cannabis family. The strain is a hybrid between an elite Early Skunk clone and an automatic version of Critical developed by Sweet Seeds’ R&D department. The resulting hybrid has been backcrossed twice with the elite Early Skunk clone.
Sweet Skunk Auto is one of the fastest autoflowering strains, ready in just 7 weeks. It’s a highly resinous and productive plant that produces dense buds covered in trichomes. It has an intense Skunk aroma with sweet, musky undertones and hints of spices.
Sugar Mango Ryder Auto
Sugar Mango Ryder Autoflowering by World of Seeds is a cross where the breeders introduced the gene responsible for the autoflowering trait while taming the genetics of a pure Brazilian sativa, Santa Maria, with its Cannabis Ruderalis specimen. The result is an indica-dominant autoflowering marijuana plant that will be ready in just 7 weeks.
Sugar Mango Ryder has a very fruity and sweet aroma and flavor. Being one of the fastest autoflowering strains, you won’t have to wait long to enjoy this delight.
La Diva Auto
La Diva Autoflowering by Delicious Seeds is a cross between Blueberry and Il Diavolo Autoflowering, bringing blue hues to this ultra-fast variety while maintaining the dominant autoflowering gene in these crosses. Thanks to its 7-week growth cycle, it ranks among the fastest autoflowering strains.
La Diva will surprise you by adding new aromas and colors to your indoor grow any time of the year. It has medium resistance to mold and high resistance to pests, impressing both beginners and experienced growers with its yields.
La Diva Auto has a very fruity aroma and flavor with citrus undertones. Its effect is strong and physical, with a mild and pleasant mental stimulation — some users report experiencing introspective states. Additionally, it has analgesic properties and has been shown to help relieve anxiety or nervousness.
La Bella Afrodita Auto
La Bella Afrodita Auto by Delicious Seeds is a cross between Il Diavolo Autoflowering and AK 47 Autoflowering, introducing a new generation of automatic plants — faster, bigger, and with higher yields than their predecessors. These plants can reach heights between 70 and 120 cm, developing long branches filled with dense, resin-covered buds. They have medium resistance to mold and high resistance to pests.
These autoflowering seeds will be ready in just 7 weeks, making them one of the fastest in the catalog.
The aroma of La Bella Afrodita Autoflowering carries classic Afghan notes. Let yourself be surprised by this new generation of autoflowering strains, which will bring joy to your home every three months. Its flavor is fruity citrus, and the effect of La Bella Afrodita Auto is highly medicinal.
Kalashnikova Auto
Kalashnikova Auto by Green House Seeds is one of the fastest autoflowering cannabis strains available. It’s the result of crossing Kalashnikova with Green O Matic. Under optimal conditions, whether indoors or outdoors, it can reach a height of 70 to 100 cm.
Kalashnikova Auto can complete its full cycle in just 7 weeks when grown under a light cycle of 12 to 18 hours per day.
This cannabis plant offers a spicy aroma and flavor, with a fast-hitting effect that delivers a strong physical sensation. When grown outdoors under optimal conditions, it can yield up to 100 grams per plant. Indoors, using 600W lights, it can produce up to 800 g/m².
+ Speed Auto
+ Speed Auto by Sweet Seeds belongs to the 3rd generation of autoflowering cannabis seeds. It’s a hybrid resulting from the cross between a fast-flowering Critical Mass autoflowering strain, selected by Sweet Seeds’ R&D department for its intense aroma and quick flowering, and a specially selected Speed Devil #2 strain with an extremely fast life cycle.
You can complete the entire grow cycle of + Speed Auto in just 7 weeks, making it one of the fastest autoflowering strains available.
The result of + Speed is a very fast-flowering cannabis plant that produces thick buds packed with aromatic resin. Sweet and fruity aromas with hints of yeast and cheese.
Faster Autoflowering – 8 Weeks
In the previous list, we looked at the fastest strains, but in the following one, we’ll explore varieties that can be ready in just 8 weeks — and many of them are much more productive than the 6-week ones. But if you’re looking for high yields, check out our post on productive strains.
Cream Caramel Auto
Cream Caramel Auto by Sweet Seeds are feminized autoflowering cannabis seeds, a new version of our classic Cream Caramel. The result of crossing our best autoflowering strains with Cream Caramel.
Thanks to this cross, Sweet Seeds has managed to create an autoflowering seed that will be ready to harvest in just 8 weeks, making it one of the fastest autoflowering strains.
Cream Caramel Auto is a top-quality strain, with dense buds and high resin production, an intense sweet aroma with earthy undertones, fast flowering, strong effects, and great hybrid vigor.
Green Poison XL Auto
Green Poison XL Auto from the seed bank Sweet Seeds is a feminized autoflowering cannabis strain. It is one of the fastest and most productive autoflowering seeds in our catalog. In just 8 weeks, it can produce up to 250 grams per plant outdoors, while indoors it yields between 450 and 600 grams per square meter.
Green Poison XL Auto is the result of crossing two Green Poison Auto plants, creating a larger version with a high production of flowers and resin. Its flavor and aroma are very pleasant and intense, featuring sweet and fruity tones, hints of skunk, and touches of nuts and arugula.
Northern Light Blue Auto
Northern Light Blue Auto, a cross between Northern Light Auto and Blueberry, is a medium-sized plant resistant to mold and pests. It produces a large central cola and many side buds, all packed with dense plant matter and a high amount of resin crystals. In just 8 weeks of cultivation, you’ll get splendid buds from one of the fastest autoflowering strains.
Northern Light Blue Auto by Delicious Seeds is a predominantly Indica autoflowering strain with strong medicinal effects. It is ideal for relieving chronic pain, providing a pleasant sense of well-being along with a sedative effect. Perfect for long periods of meditation and relaxation. It has a subtle fruity aroma of forest berries with spicy notes, very fruity.
Watermelon Auto
Watermelon Auto by Royal Queen Seeds is an indica-dominant autoflowering cannabis seed with a grow cycle of just 8 weeks, making it one of the fastest autoflowering strains.
It’s a compact plant that delivers very satisfying yields and can easily be grown in discreet locations. Indoors, it can produce up to 500 g/m², while outdoors it yields up to 100 g per plant.
Watermelon Auto has a tropical flavor and a glorious, sweet, and well-balanced aroma. It combines the taste of watermelon with tropical fruits and earthy undertones. Its strong, psychoactive effect makes it a special and comforting experience.
Super Critical Auto
Super Critical Auto by Green House Seeds is an autoflowering cannabis plant resulting from the cross between Big Bud x Skunk x White Widow.
This autoflowering Super Critical strain is a robust, medium-sized plant, excellent for growing in SoG (Sea of Green) setups. It can flower indoors at any time of the year under 12 to 18 hours of light per day, and outdoors it can flower year-round as long as temperatures stay above 10ºC.
With a grow cycle of just 8 weeks, it’s one of the fastest autoflowering seeds available.
The effect of this strain is physical and very fast-acting, with a narcotic touch and a deeply relaxing finish. Super Critical Auto is medically effective for pain relief. Its flavor and aroma are quite sweet and floral.
Hulkberry Auto
Hulkberry Auto by Royal Queen Seeds is an autoflowering cannabis seed. In just 8 weeks of cultivation, it will be ready for harvest, making it one of the fastest autoflowering strains.
Indoors, it can yield up to 500 g/m², while outdoors it can produce up to 150 g per plant.
It’s one of the most potent seeds on the market, with Sativa dominance, delivering an uplifting effect that boosts creativity, sharpens mental focus, and provides the energy to take on the day.
Its flavor and aroma are second to none. The buds release earthy, spicy, and strawberry-like aromas, with woody flavor notes that will awaken your palate.
The Fastest Autoflowering Strains on the Market
The fastest autoflowering strains on the market can be ready in just 6 weeks of cultivation, but only if grown under optimal conditions and parameters. To achieve this, you’ll need to use quality cannabis fertilizers, maintain a proper humidity level, and provide 20 hours of light per day.
Here are some of the fastest automatic seeds you can buy at our online grow shop. If you need help finding the variety that best suits you, don’t hesitate to contact the Themariashop team—they’ll be happy to assist you.
Dive into the world of growing autoflowering cannabis plants.
