Best Autoflower Cannabis Seeds

2021 Best Sellers and Most Popular Autoflowering Cannabis Strains Reviews.

The Best Autoflower Cannabis SeedsAutoflowering seeds are a great way to get a healthy crop of cannabis without worrying about things like light cycles or removing male plants (since the vast majority of autoflower seeds are also feminized). While with regular seeds growers will need to carefully monitor the hours of light their plants get in order to force them to flower, autoflowering seeds, as the name suggests, will do it all on their own. This makes them extremely beginner friendly and a foolproof way to get started with growing your very first batch of marijuana.

With autoflowering seeds, you could be harvesting that batch in as little as ten weeks. A little bit of growing equipment, some know-how, and a Crop King Seeds mixed autoflower seed pack is all you will really need to get started, and those few things will have you well on your way to growing not just one, but a variety of different strains.

Autoflowering strains are great for anyone with limited gardening space or time to devote to growing marijuana. It does well both indoors and out, often flowering two or more times over the course of a single summer. These seeds are also particularly great for medical marijuana users who may have health conditions preventing them from devoting a lot of energy to taking diligent care of the more maintenance-heavy regular cannabis varieties. With low-maintenance autoflower seeds, the weed practically grows itself and all you have to do is sit back and enjoy the final product.

The Best Autoflower Cannabis Seeds in 2021


#15 Dwarf Low Flyer Autoflower Seeds

Crop Kings Seeds has carefully bred Dwarf Low Flyer with genetics from Early Girl, Low Rider, and Ruderalis to make it autoflower. This compact strain will stay under 2 feet tall when fully grown and flowers within about 6 weeks. The harvest is very frequent, but also quite light, at only 75 grams per square meter. The low to moderate levels of THC produces a natural high effect that is enjoyable but nothing particularly special.

Dwarf Low Flyer is a good option for growers who value a quick turnaround and need a stealthy, compact plant that doesn’t take up too much space and doesn’t need a lot of taking care of. If you have more time, space, or energy though, it may be a better option to spring for a strain with a slightly better payoff.

Not that the finished product isn’t enjoyable, but it does leave a little something to be desired if you’re used to smoking the more robust, blow your socks off strains.

Dwarf Low Flyer Auto
Dwarf Low Flyer Autoflower Cannabis Seeds
Easy / Moderate
11%
Indica-Dominant Hybrid
Natural High
75-100 g/m²
6 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#14 Trainwreck Autoflower Seeds

produces up to 250 grams per square meter in a period of 8 weeks from seed to harvest. The strain is of Spanish origin, with genetics from Original Cali Train Wreck and Ruderalis. The resinous buds of Trainwreck have a strong aroma smelling of citrus and pepper. Its flavor is similar and fruity.

This hybrid strain does hit like a train with potent mind-bending effects that will leave you feeling euphoric, happy, and creative. Anxiety, pain, stress, ADD, ADHD, PTSD, and depression can all be successfully treated with this strain. These effects come on quickly leading to almost instant relief for medical users and fast relaxation for recreational users.

Trainwreck is both easy to grow and easy to enjoy, it finishes easily and won’t leave you feeling like a wreck afterward. It’s a great strain to choose for social settings and daytime use.

Trainwreck Auto
Trainwreck Autoflower Cannabis Seeds
Easy
16.5%
Sativa-Dominant Hybrid
Uplifting & Euphoric
250 g/m²
8 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#13 Early Miss Autoflower Seeds

is a predominately Indica strain and named for its fast turnaround time. In total, it takes an average of just 50 days to grow this strain to completion – from seed to harvest. It can be grown outdoors at anytime of year so long as temperatures stay above a balmy 50 degrees Fahrenheit. It can also be grown indoors with similar results and harvests of up to 200-250 grams per square meter. It has an incredible 20% THC level that produces its signature relaxation effects that can be used as a highly effective method of medical pain relief.

Early Miss is bred with genetics from Big Bud and Original White Widow. Though it’s not quite as easy to grow as some other autoflowering varieties, it is still a solid choice for beginning growers, and the end result will be well worth the extra effort you put into it.

Early Miss Auto
Early Miss Autoflower Cannabis Seeds
Easy / Moderate
20%
Indica-Dominant Hybrid
Relaxing
200-250 g/m²
7 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#12 Amnesia Haze Autoflower

is a sativa dominant strain that was bred to be the autoflowering version of the award-winning Dutch favorite, Haze. Amnesia Haze has won itself a Cannabis Cup and Sativa Cup on its own merits as well. Its flavor notes include earthy hints of citrus and lemon which give off an uplifting, energizing buzz. This is a truly special strain that you won’t soon forget after your first try. In fact, it’s likely to become part of your regular rotation.

Users report feelings of happiness, euphoria, upliftedness, creativity, and energy. It provides a smooth, easy smoke with no coughing and a slightly sweet aftertaste. It can be used medically for the relief of excessive stress, depression, fatigue, pain, anxiety, headaches, and even loss of appetite.

Amnesia Haze can produce a great psychedelic effect without the long growing time, producing dense and resinous buds in as little as 9 weeks.

Amnesia Haze Auto
Amnesia Haze Autoflower Cannabis Seeds
Easy / Moderate
15.5%
Sativa-Dominant Hybrid
Uplifting
250 gr/m²
8-9 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#11 Super Skunk Autoflower Seeds

If you’re looking for the loudest autoflowering weed seeds for sale — look no further than Super Skunk Auto.

The Super Skunk Auto seed strain has it all — nose-curling aroma, palate-pleasing flavor, hard-hitting effects, and chunky buds that’ll make you jump for joy. Although the Super Skunk Auto seed strain is ideal for indoor or outdoor growth, we need to warn you — it’s stinky.

In other words, you must use a carbon filter indoors or plant Super Skunk Auto seeds far away from your neighbors! Aside from that, growing Super Skunk Auto seeds is a breeze.

After a short flowering period, you’ll find plump evergreen buds that are coated in sticky trichomes. The aroma and flavor is a mixture of aromatic spice and overripe tropical fruit that sticks to anything and everything.

The Super Skunk Auto seed strain is indica-dominant, which leads to deeply calming effects. From pure relaxation to zen’d-out bliss, Super Skunk Auto is perfect for those who need a chill pill.

Don’t wait; Super Skunk Auto seeds don’t last long once they go for sale. Known as one of the best autoflowering genetics in the USA, Super Skunk Auto is a real treat.

Super Skunk Auto
Super Skunk Autoflower Cannabis Seeds
Easy
14%
Indica-Dominant Hybrid
Mood Enhancing, Thought-Provoking
100-200 g/m²
8-9 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#10 Bluetooth Autoflower Seeds

Bluetooth is the best combination of sweetness with an awesomely heavy high. This autoflower cannabis variety has a distinct smoke that is very sweet and fruity. The flavor of blueberry will appeal to anyone with a sweet tooth. It will put you into couch lock mode, even if you’re a seasoned smoker. After inhaling, take the time to rest and unwind; put the TV on and turn off your brain. When you want to chill out or dull the pain, if you’re a medical marijuana user in 2021, Bluetooth Seeds and strains will appeal to you.

The name Bluetooth is a nod toward tokenology that weed connoisseurs will pick up on right away. It’s indica dominant and grows quickly from seeds (about 65 days to harvest time). The sticky buds shine with THC, which is up to 18 percent and responsible for the serious punch you get when you smoke the weed.

The plant is short and does best in small spaces, like balconies. The marijuana seeds have the potential to grow both indoors and outdoors and can produce a good yield. As Bluetooth Seeds are fairly easy to grow, they’re a good choice for a beginner.

Bluetooth Auto
Bluetooth Autoflower Cannabis Seeds
Easy
15-18%
Indica-Dominant Hybrid
Sweet, Fruity, Blueberries
200-300 g/m²
7-9 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#9 White Widow Autoflower Seeds

Get the autoflower version of White Widow, one of the best and most popular strains in 2021 around the globe! Auto White Widow Feminized seeds are a reliable choice for growers because its autoflower properties save you a lot of time – you’ll get to enjoy the cannabis even sooner! Within 6-7 weeks, to be exact.

Grow Auto White Widow seeds indoors or outdoors as it has an average height and is a hearty plant. It’s amongst the easiest cannabis seeds to grow which is another reason which it’s one of the best around.

With THC levels of up to 19%, you’ll get an effect similar to the big sister White Widow. The cerebral effects are great, with a high that is uplifting and energetic. You might feel more creative and want to be social too. For medical users, get an ease from stress and sadness. As for the taste, enjoy a fresh pine flavor upon inhale, while citrus is the aftertaste left in your mouth after you exhale. Yum!

White Widow Auto
White Widow Autoflower Cannabis Seeds
Easy
19%
Indica-Dominant Hybrid
Happy, Creative, Social
150-200 g/m²
8 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#8 Critical Thunder Autoflower Seeds

Autoflower Critical Thunder is one of the most potent cannabis strains out there. So, it’s one of the best 2021 weed varieties on our list! Critical Thunder can also deliver a huge yield under the right conditions. While the seeds aren’t the fastest to grow, allow the buds time to fully grow and they can become dense and produce huge quantities. The indica strain’s flavor is a mix of citrus fruit and earthiness. Its scent is similar; it smells musky and sweet.

You’ll understand the name Critical Thunder better once you’re on it. The name refers to the powerful high it delivers – it can knock you hard, and the high lasts up to a few hours! For medical marijuana users, enjoy an ease of pain and restful sleep too. Just don’t take too much at once or you’ll start coughing; don’t say we didn’t warn you about its high potency! Get a buzz for the mind and body that you won’t soon forget. This autoflower is one to try to enjoy its awesome effects!

Critical Thunder Auto
Critical Thunder Autoflower Cannabis Seeds
Moderate
15-18%
Indica-Dominant Hybrid
Cerebral, Body Buzz
300-400 g/m²
8-10 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#7 Lowryder Autoflower Seeds

When you need to get a little higher — take a little trip with Lowryder Auto seeds.

Once you germinate these seeds, you’ll quickly find why Lowryder Auto ranks high in our Top 15 Autoflowering strains list. Lowryder Auto plants are small but fast-growing, making them perfect for indoor growers or outdoor growers that require multiple harvests in a single season.

The Lowryder Auto seed strain is straightforward to grow and flourishes in just about any condition. After 8-9-weeks of flowering, you’ll find dense buds that are coated in mouth-watering trichomes that’ll make you wonder why you haven’t converted to feminized autoflowering strains sooner.

Come harvest time; cultivators will find abundant flowers that smell and taste like sweet citrus and savory spice. The effects are dazzling and instantly reduce depression, anxiety, and insomnia. Whether you need a medical or recreational cannabis strain, Lowryder Auto seeds are the perfect autoflowering solution for the 2021 growing season.

Lowryder Auto
Lowryder Autoflower Cannabis Seeds
Easy
14%
Indica-Dominant Hybrid
Relaxing, Mood-Enhancing
100-200 g/m²
8-9 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#6 NYC Diesel Autoflower Seeds

NYC Diesel Autoflower is an easy to grow strain both indoors and outdoors that flowers within 7 weeks, giving an average harvest of 250 grams per square meter. When grown outdoors, the plants will ideally finish in early November. It’s a compact variety that doesn’t need a lot of room to spread out in. It has a blended citrus and sweet fuel flavor with a pungent aroma.

NYC Diesel produces a relaxing, full body stone effect and is a top choice for anxiety sufferers due to its ability to provide superior relaxation without negative side effects like paranoia. It’s also a good strain for casual and social use due to its uplifting, creative, and talkative effects.

NYC Diesel is a fast growing, compact, and low maintenance strain that produces a high quality, enjoyable bud. Definitely a solid strain to add to your garden’s rotation – after all, it won’t take long.

NYC Diesel Auto
NYC Diesel Autoflower Cannabis Seeds
Easy
14.5%
Sativa-Dominant Hybrid
Energizing
250 g/m²
7 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#5 Granddaddy Purple Autoflower Seeds

If you’re looking for pure indica autoflowering cannabis seeds that offer medical potential or recreational bliss — look no further than the one and only GDP Auto.

GDP Auto, also known as Granddaddy Purple Auto, is the ultimate strain for cannabis-connoisseurs that seek potency, fast flowering times, and purple weed. As a cherry-on-top — Granddaddy Purps Auto seeds are beyond easy to grow.

The GDP Auto seed strain grows short and compact, which makes it ideal for indoor cultivation. GDP Auto’s purple buds glisten with resin, alerting its admirers of its sky-high THC level.

From grape soda to chocolate-laced hashish, Granddaddy Purple Auto flowers will send your senses to the moon and beyond. Beginners beware — the GDP Auto strain packs a potent punch and will leave you dazed and confused for hours on end. Known for its effectiveness against PTSD, insomnia, and pain, the GDP Auto seed strain is ideal for sinking into mind and body-numbing bliss.

If you’ve been looking for one of the best heavy-hitting feminized and autoflowering strains for the 2021 growing season — GDP Auto seeds hit the mark.

Granddaddy Purple Auto
Granddaddy Purple Autoflower Cannabis Seeds
Easy
Up to 23%
100% Indica
Relaxing, Euphoric, Sedating
100-200 g/m²
8 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#4 White LSD Autoflower Seeds

White LSD offers you exactly what you would expect from its name. This marijuana strain packs a punch with a psychedelic high that is hard to beat, thanks to the THC level that can go up to as much as 20 percent! You’ll get the head buzz you want, along with a nice sense of body relaxation. The cerebral effects include a euphoric feeling, and inspiration may hit you. Many users say they get a boost in creativity and feel happy while they’re on this weed too. The high can last for hours.

Now you are starting to understand why we consider White LSD one of the best autoflower weed seeds and strains of 2021! We’d better add that while it can take some work to grow, the flowering time is fast for this cannabis variety; the seeds can grow in as little eight weeks. You’ll get a big yield potential too when you choose White LSD seeds, and if you get the conditions right. It can grow indoors or outdoors. As for the taste, it’s got that typical earthiness of so many kinds of weed, as well as spicy undertones.

White LSD Auto
White LSD Autoflower Cannabis Seeds
Easy / Moderate
18%
Sativa-Dominant Hybrid
Cerebral, Relaxeing
300-400 gr/m²
8-10 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#3 Bruce Banner Autoflower Seeds

If you’re searching for one of the most potent autoflower weed seeds for sale in 2021 — look no further than Bruce Banner Auto.

Although moderately difficult to grow, the Bruce Banner Auto strain is well worth the effort. From sky-high THC levels to neck-breaking flowering speed, the Bruce Banner Auto strain is beyond recommended to any cultivator that desires the best autoflower genetics.

The Bruce Banner Auto seed strain grows tall, which makes it ideal for outdoor growth. However, Bruce Banner Auto thrives indoors as long as it has enough headspace. After roughly 8-weeks, you’ll find chunky green buds that resemble Bruce Banner’s alternate-ego — the Hulk.

From sweet diesel fumes to pine-like bitterness, the Bruce Banner Auto seed strain is ripe with delicious terpenes. The effects of Bruce Banner Auto weed are not to be missed, as it provides ample layers of relaxation, motivation, creativity, and laser-like focus.

Overall, we recommend Bruce Banner Auto to any cultivator who wishes to experience Cannabis Cup winning qualities in autoflowering form.

Bruce Banner Auto
Bruce Banner Autoflower Cannabis Seeds
Moderate
20-25%
Sativa-Dominant Hybrid
Motivating, Euphoric, Energetic
100-200 g/m²
8 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#2 OG Kush Autoflower Seeds

is an autoflowering strain that has since been used as a genetic donor in a surprisingly wide variety of strains all across the West Coast. This popularity is a testament to OG Kush’s easy, fast growth, and quality bud.

Its flowering period is 7 to 9 weeks with an average yield between 250 and 350 grams per square meter. It has a pleasantly smooth and fruity flavor with hints of lime and diesel when smoked and produces an energetic head trip effect balanced with a long lasting body stone. At full size, this plant is still relatively short in stature, making it a great choice for gardeners who are short on both time and space.

The true origins of OG Kush are a mystery, though a popular theory is that it came from Chemdawg and HinduKush genetics. Since it has been around ubiquitously since the early 90’s, though, we may never know the true origins of this strain.

OG Kush Auto
OG Kush Autoflower Cannabis Seeds
Easy
15-18%
Sativa-Dominant Hybrid
Energetic, Head Trip
250-350 g/m²
7-9 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

#1 Blue Dream Autoflower Seeds

Blue Dream is certainly a dream to growers who want easy-to-grow weed seeds. This cannabis variety grows quickly, in spite of being a sativa-dominant hybrid, and is versatile enough to grow indoors or outdoors. Plus, it tastes amazing with a sweetness and berry flavor that users compare to blueberries. No wonder then that Blue Dream is one of the most popular and best autoflower strains around!

This 2021 marijuana strain provides a gentle cerebral effect that is going to please both beginner and seasoned users. Feel relaxed from head to toe after smoking the weed, as well as a sense of euphoria and wanting to look on the brighter side of things from where you are in the cloud. So, while you’re on Autoflower Blue Dream, you’re feeling a slight high but not knocked off your feet to the point that you can’t get things done in your day. Enjoy the best of both worlds, as though you are in a wonderful dream!

Blue Dream Auto
Blue Dream Autoflower Cannabis Seeds
Easy
14%
Sativa-Dominant Hybrid
Relaxed, Euphoric, Optimistic
400 g/m²
9-10 Weeks
Autoflower
Grow Difficulty
THC Level
Indica/Sativa
Effect
Yield
Flowering Time
Versions

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If you have come this far, you are probably still looking for your favorite seeds…
Fortunately, we have reviewed dozens of other varieties of cannabis seeds of different types that can significantly suit your needs!

Best Places to Buy Marijuana Seeds Online in 2021

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