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Top 10 fastest autoflowers of 2025
Sometimes you don't want to wait months to get your hands on some cannabis. While some may have the impression that a short growing cycle correlates to a weak and meagre harvest, this couldn't be further from the truth—at least in the case of these 10 autoflowers. Delve into our fastest autoflowers, which give photoperiods a run for their money.
Time is of the essence, especially for growers looking to get the most out of each season. Fast autoflowering strains offer a winning combination of speed, simplicity, and excellent results, making them the perfect choice for new and experienced cultivators. With short life cycles and compact growth, they're ideal for discreet grows, limited spaces, and regions with unpredictable weather.
Unlike photoperiod varieties, these strains bloom automatically under almost any light schedule and require less maintenance overall. And when we say “fast”, we mean it! These strains typically go from seed to harvest in just 8–9 weeks, without sacrificing flavor, potency, or yield. Whether you're aiming for multiple harvests per year or just eager to fill your stash jars quickly, these fast autoflowers are more than up to the task.
Top 10 Fastest Autoflowering Cannabis Strains
However, the most obvious benefit of autoflowers is their speed. With that in mind, we've assembled a list of the top 10 fastest autoflowering cannabis strains. The majority of these lightning-fast strains race from seed to harvest in 8 weeks or less, but one thing's for sure; they all deliver top-quality cannabis.
1. Passion Fruitz Automatic (Zamnesia Seeds)
Tropical, tasty, and turbo fast, Passion Fruitz Automatic brings exotic appeal to the world of quick autoflowers. This vibrant hybrid blends citrus terps with legendary OG Kush genetics, resulting in a fruity, resin-coated strain with a serious punch.
Packing 20% potency, Passion Fruitz’s effect hits the sweet spot between blissful body relaxation and a bright cognitive boost. She grows to 55 inches and, just 8–9 weeks after germination, delivers impressive harvests of thick, frosty flowers in any environment.
If you're chasing fast results without compromising flavor or potency, Passion Fruitz Automatic earns its place as a top-tier pick for 2025.
2. Sensi Skunk Autoflower (Sensi Seeds)
.jpg "Sensi Skunk Autoflower (Sensi Seeds)")
This speedy offspring of Sensi Skunk and a high-performing ruderalis parent has it all. Not only does she burst from seed to harvest in just 8–9 weeks, but this indica-dominant hybrid boasts superb mold resistance and moreish flavors.
Armed with ample levels of potency and plenty of ocimene and limonene, Sensi Skunk Autoflower treats users to a relaxing physical effect of delicious notes of sweetness and citrus. Plants maintain a compact and stealthy stature in all environments and respond well to LST and other training techniques.
If you prioritize speed above all else and want to get your stash jars filled as soon as possible, you need to add Sensi Skunk Autoflower seeds to your stash.
3. AK-420 Automatic (Zamnesia Seeds)
AK-420 Automatic showcases machine-gun-like quickness when it comes to growing. Taking just 8–9 weeks from germination to harvest means that growers can get their hands on her precious buds without delay. Perfect for indoor, outdoor, and greenhouse cultivation, this is a well-rounded strain that'll appeal to newcomers and experts alike. Reaching heights of just 100cm means that AK-420 Automatic will easily slot into any growing space, giving growers plenty of options. Once ready, indoor harvests will hit around the 500g/m² mark, with outdoor yields of about 200g/plant.
Overall, AK-420 Automatic doesn't require any special treatment other than the standard level of upkeep, maintenance, and pruning, so growers are in for a relatively easy ride. The harvested buds boast earthy and skunky flavours alongside effects that are sure to soothe all those that try her.
4. Strawberry Banana Auto (Growers Choice Seeds)
.jpg "Strawberry Banana Auto (Growers Choice Seeds)")
By crossing Banana Kush, Bubble Gum, and an elite ruderalis specimen, breeders and Growers Choice Seeds created a sensationally swift and sweet indica-dominant hybrid in the form of Strawberry Banana Auto.
This strain’s immense potency of 26% and delicious fruity and sugary flavor profile guarantee an intense, long-lasting, and euphoric experience every session. Plants grow to a tall height but are easily tamed with LST. Enjoy weighty yields of up to 14.5 oz/yd² indoors and 24.5 oz/plant outdoors.
Strawberry Banana Auto doesn’t just offer one of the fastest cannabis-growing experiences out there, but she’s also one of the strongest and most flavorful autos available.
5. Blueberry Glue Auto (Expert Seeds)
This 50/50 sativa/indica cultivar takes just 8–9 weeks from start to finish, yet delivers huge hauls of bud! Indoors, harvests can reach up to 650g/m², whereas outdoors, up to 700g/plant is possible in the best conditions. Initially, this cultivar stays pretty close to the ground, until she reaches the flowering stage; then, she'll begin to stretch out a little more—something to keep in mind for those with slightly pokier growing spaces.
With an average of 21% THC to her name, Blueberry Glue Auto delivers a full-bodied stone that's sure to relax all. Coupled with a flavour that leans heavily on the namesake blueberry, but with a bit of pine for good measure, it’s a highly enjoyable experience whether smoked, vaped, or made into delicious edibles.
6. La Diva (Delicious Seeds)
When we hear the word “diva”, it often conjures up visions of a difficult or demanding person. However, with La Diva, you're only in for a smooth experience. With some awesome parentage by way of Il Diavolo crossed with Blue Berry, La Diva provides some great features in the grow-op and the stash jar. She's a robust strain, demonstrating great resistance against mould, and is easily cultivated in both indoor and outdoor settings. Taking an almost unbelievably short 6–7 weeks to reach harvest, she is still capable of delivering up to 400–450g/m² indoors and 50–100g/plant under the sun.
Complete with a sweet, fruity taste and a pungent aroma, the experience of smoking La Diva will make you feel like a star, indeed. This is only enhanced by a THC level of 15–20%, which all but banishes worry from your brain.
7. Monster Mash Auto (Exotic Seed)
There's nothing scary about this strain; just some high-performing plants that make Monster Mash Auto a must-have. She'll be ready to harvest after a period of 7 weeks on average, and the results are simply breathtaking. Monster Mash Auto is a hybrid strain derived from American Kush and Black Domina. She's certainly high-yielding, clocking in at anywhere between 450–500g/m². For a plant that stands at around 85cm, this is a huge harvest. Just be sure to keep an eye on humidity and provide some maintenance along the way, and you too can enjoy her.
And enjoy you will; upon inhaling, a blanket of relaxation will immediately be cast over your body. From here, your eyes will droop with each additional hit, and you might just end up raiding the fridge if you finish an entire joint. And, though her scent is dank and Kush-powered, her flavour is more subtly sweet.
8. Skunk 1 Autoflower (Sensi Seeds)
.jpg "Skunk 1 Autoflower (Sensi Seeds)")
What do you get when you cross the legendary Skunk 1 with a speedy ruderalis parent? Skunk 1 Autoflower, of course! If you want speed crossed with stealth and style, then look no further!
With a medium potency and high levels of ocimene, this auto offers a fast-acting body buzz perfect for motivation during daytime hours. Her short height, compact shape, and utterly rapid growing time of 6–7 weeks make for one of the most efficient cultivation experiences possible.
Overall, Skunk 1 provides skunkiness, speed, and a space-saving shape all in one easy-to-grow package. Enjoy some of the fastest genetics on Earth!
9. Original Auto Skunk (FastBuds)
Taking just 8-9 weeks to race from seed to harvest, Original Auto Skunk has fast become a favourite among true cannabis connoisseurs. Her sweet and earthy buds will soon be in your hands, thanks to a smooth and enjoyable growing experience. She's low maintenance and is geared toward both indoor and outdoor growing projects. She'll reach heights of around 80–100cm, making her ideal for those that want a little discretion with their plants, or who simply want something smaller to take care of. When she's ready to yield, you'll see returns of 400–500g/m² indoors and 50–150g/plant outdoors.
True to her name, you'll be able to tell she's skunky before you even try her. The effects she brings are definitely relaxing and soothing (you’ll certainly feel every bit of her 20% THC content), but with some strong uplifting qualities, making Skunk Auto ideal for a night in with friends.
10. Green-O-Matic (Greenhouse Seeds)
Six weeks is all it takes to get a taste of Green-O-Matic. She's an autoflowering indica-dominant powerhouse that comes from quadruple genetics. Formed from the crossing of White Dwarf x Low Rider x Moroccan x ruderalis, she impresses where it counts! She's able to be grown at any time of year, and is robust enough to deal with some of the trickiest climates with ease. After her super-short growing cycle, you can anticipate some stunning indoor returns of up to 800g/m². Just take that in for a moment.
When it comes to smoking, she provides an overall mild but long-lasting high that is deeply relaxing and speckled with euphoria. A THC content of 15% hits just the right spot for smokers looking to somewhat maintain their ability to function.
Marijuana Seeds
Click here to browse countless varieties of regular, feminized, and autoflowering cannabis seeds from the best banks in the world.
Honorable mentions
Not quite in the top 10, these fast, flavor-packed autos are still serious contenders worth checking out:
- Pineapple Express F1 Autoflower (Zamnesia Seeds): Ready in 8–9 weeks; delivers energizing effects with bold pineapple and citrus flavors.
- Atlas F1 Autoflower (Royal Queen Seeds): Finishes in just 70 days; highly resilient with sweet citrus-pine terps and a clear-headed effect.
- Gaia F1 Autoflower (Royal Queen Seeds): 6–7-week lifecycle; compact and ultra-potent with tropical fruit flavors and dense, shimmering buds.
- Grape Ape F1 Automatic (Zamnesia Seeds): Harvest-ready in 8–9 weeks; known for her rich grape flavors and deeply relaxing high.
Marijuana Seeds
Click here to browse countless varieties of regular, feminized, and autoflowering cannabis seeds from the best banks in the world.
Fast, easy, and ready when you are
With autoflowering cannabis strains, there's no need to wait months for a quality harvest. Whether you’re working with limited space, chasing multiple harvests, or just want a smooth, easy, and speedy growing project, these cultivars deliver maximum satisfaction with minimal fuss. Short life cycles, compact plants, and impressive potency: what's not to love?
Want to start your next grow with speed on your side? Browse our full collection of fast autoflowering cannabis strains and get growing today!
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