15 Best Autoflowering Seeds in 2022: Fastest Growing Marijuana Seeds Reviewed

Marijuana seeds can be classified in many different ways. One of them is based on whether they are autoflowering seeds or whether they give rise to plants that flower based on the photoperiod. Different growers have different types of needs, and autoflowering plants are always in high demand, especially when it comes to growing cannabis plants. This article is dedicated to 15 of the best autoflowering seeds that we have come across in various seed banks.

This list has been curated by us after trying out over 30 different sets of seeds, and we have come to the conclusion that these are the top 15 that need to be recommended to our readers. Our team has curated this list based on the time it takes for these seeds to grow into mature plants, the amount of yield that they produce, the kind of high that they give you, the THC and CBD levels, and the taste and flavor profile among other factors. 

There are hundreds of autoflowering strains out there in the markets – and buyers often get confused in this sea of seeds regarding which is the ideal choice. We hope that by the time you’ve gone through this entire list of seeds, you will get a much better idea about autoflowering plants and how to buy them. For your ease, we have also linked these seeds straight to their seed banks so you could buy them in just a couple of clicks. However, before we dive deeper into this and begin with our list of the best autoflower seeds, let us first understand what they actually are.

Understanding Autoflowering Seeds: When you grow a regular marijuana plant, the shift from vegetative to flowering phase happens when the photoperiod (the amount of time that the plant gets sunlight) is reduced. In nature, it happens with the changing seasons and with sunlight naturally decreasing during winters. However, when you grow the plants indoors, you have to manually adjust the lighting levels to match them to the way your plants require them to be. When light is reduced from about 18 hours to 14 hours, you reach the pre-flowering phase, and when you reduce it to 12 or 10 hours, it enters the flowering phase.

In the case of autoflowering plants, however, none of this is needed and the plants start to flower on their own without really the need for any change in lighting. There are some growers who keep the lights on for 24 hours but even that does not affect the flowering process. This is also what makes these plants relatively simpler and easier to grow for beginners since you don’t really have to care too much about changing the lighting or triggering the flowering on your own. 

When a parent strain is crossed with a Ruderalis strain of cannabis, it is then you produce autoflowering cannabis strains. That being said, let us now dive deeper into some of the best autoflowering marijuana strains which you can buy off seed banks right away:

15 Best Autoflowering Seeds in 2022

Here is the list of 15 of the best autoflower strains in 2022 that we have personally curated after going through a much longer set of seeds. The seed banks that we have chosen here are Seedsman Bank, Crop King Seeds, and I Love Growing Marijuana (ILGM). These are three of the best-known and trusted names which ensure that they deliver all over the world, and deliver on time too! Their seeds have a high rate of growth and generally tend to germinate well. Here’s the list:

Image Product Features Price
White Widow Autoflowering Seeds White Widow Autoflowering Seeds

  • Dominant Strain: 60% Indica-dominant, 30% Sativa, 10% Ruderalis lineage
  • THC Level: Up to 19% THC concentration
  • Effect: Uplifting, Social, Head-High, Relaxing

Check Price on ILGM
Jack Herer Autoflowering Marijuana Seeds Jack Herer Autoflowering Marijuana Seeds

  • Dominant Strain: 70% Sativa-dominant, 20% Indica, 10% Ruderalis lineage
  • THC Level: Up to 16.25% THC content
  • Effect: Upbeat, Cheerful, Relaxing

Check Price on CropKingSeeds
Strawberry Banana Autoflowering Seeds Strawberry Banana Autoflowering Seeds

  • Dominant Strain: Balanced split between Indica and Sativa strains
  • THC Level: Up to 27% THC concentration
  • Effect: Uplifting, Creative, Relaxed, Euphoric

Check Price on Seedsman
Northern Lights Autoflowering Seeds Northern Lights Autoflowering Seeds

  • Dominant Strain: 70% Indica-dominant, 20% Sativa, 10% Ruderalis genetics
  • THC Level: Up to 15% THC content
  • Effect: Relaxing, Refreshing, Comforting

Check Price on CropKingSeeds
GG4 Gorilla Glue Autoflowering Seeds GG4 Gorilla Glue Autoflowering Seeds

  • Dominant Strain: Equal split – 50% Sativa, 50% Indica lineage
  • THC Level: Up to 26% THC content
  • Effect: Relaxing, Uplifting, Happy High

Check Price on ILGM
Candy Cane Autoflowering Marijuana Seeds Candy Cane Autoflowering Marijuana Seeds

  • Dominant Strain: 60% Indica-dominant, 30% Sativa genetics, 10% Ruderalis
  • THC Level: Up to 17% THC content
  • Effect: Relaxing, Refreshing

Check Price on CropKingSeeds
Blueberry Autoflowering Marijuana Seeds Blueberry Autoflowering Marijuana Seeds

  • Dominant Strain: 80% Indica dominant, 20% Sativa lineage
  • THC Level: Up to 14% THC content
  • Effect: Relaxing, Uplifting, Comforting

Check Price on ILGM
Pineapple Cookies Autoflowering Seeds Pineapple Cookies Autoflowering Seeds

  • Dominant Strain: 50-50 split between Sativa and Indica strains
  • THC Level: Around 20% THC content
  • Effect: Relaxing, Sleepy, Euphoric

Check Price on Seedsman
Girl Scout Cookies Extreme Autoflowering Seeds Girl Scout Cookies Extreme Autoflowering Seeds

  • Dominant Strain: 80% Indica dominant, 20% Sativa genetics
  • THC Level: Up to 21% THC concentration
  • Effect: Relaxing, Comforting, Soothing, Happy

Check Price on ILGM
Bruce Banner Autoflowering Feminized Marijuana Seeds Bruce Banner Autoflowering Feminized Marijuana Seeds

  • Dominant Strain: Sativa-dominant strain, traces of Indica too
  • THC Level: Up to 25% THC concentration
  • Effect: Euphoria, Socializing, Happy High

Check Price on Seedsman
Train Wreck Autoflowering Marijuana Seeds Train Wreck Autoflowering Marijuana Seeds

  • Dominant Strain: 60% Sativa-dominant, 30% Indica, 10% Ruderalis genetics
  • THC Level: Up to 18% THC content
  • Effect: Creative, Relaxing, Happy, Comforting, Sleepy

Check Price on CropKingSeeds
Gelato Autoflowering Seeds Gelato Autoflowering Seeds

  • Dominant Strain: Near equal split – 55% Indica, 45% Sativa 
  • THC Level: Up to 26% THC content
  • Effect: Uplifting, Euphoric, Creative, Relaxing, Comforting 

Check Price on ILGM
Lamb’s Breath Autoflowering Marijuana Seeds Lamb’s Breath Autoflowering Marijuana Seeds

  • Dominant Strain: 85% Sativa-dominant strain, 5% Indica, 10% Ruderalis
  • THC Level: Up to 25% THC content
  • Effect: Head Rush, Creative, Euphoric, Happy High

Check Price on CropKingSeeds
Purple Punch Autoflowering Feminized Marijuana Seeds Purple Punch Autoflowering Feminized Marijuana Seeds

  • Dominant Strain: Indica-dominant strain
  • THC Level: Up to 24% THC concentration
  • Effect: Relaxing, Comforting, Soothing, Calming

Check Price on Seedsman

1. White Widow Autoflowering Seeds

White Widow Autoflowering Seeds
  • Dominant Strain: 60% Indica-dominant, 30% Sativa, 10% Ruderalis lineage
  • THC Level: Up to 19% THC concentration
  • Effect: Uplifting, Social, Head-High, Relaxing
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: ILGM
  • CBD Level: Under 1%
  • Flavor Profile: Sweet, Spicy, Herbal, Earthy, Pungent
  • Flowering Time: Up to 14 weeks at the most
  • Yield: Up to 15 oz per square meter 

White Widow is among some of the most popular autoflowering strains of marijuana out there. This is one of the highest-rated autoflowering seeds on the ILGM website, and for all the right reasons too! The strain carries 60% Indica and 40% Sativa lineage. It offers some of the highest THC levels in an autoflowering plant, and even the non-autoflowering version of this plant is among the easiest cannabis plants to grow – making this one an even breezier experience. 

While this is an autoflowering strain, it does take quite some time to grow. The strain takes up to 14 weeks to reach the harvest phase. It does not need a change in the lighting schedule in order to trigger the flowering process. Once it is ready for harvest, you get up to 15 oz of usable weed per square meter. If you are an indoor grower, we’ve got good news for you. The strain doesn’t usually grow beyond 2.5 feet – making it a perfect option for indoor grow tents. 

While this is an Indica-dominant strain, a lot of the effects that you experience when you smoke it are pretty Sativa-like. The strain makes you feel euphoric and social and provides a rather uplifting sort of a feeling. Unlike a typical Indica, you won’t be put into a couch-lock, but would feel relaxed and refreshed once the effect starts to wear out. The strain has a very strong herbal and spicy sort of taste and leaves you feeling a sweet taste on your lips. The smell is rather earthy, wooden, and pungent – much like what you’d expect of ‘weed’ to smell like. The White Widow strain is an absolute favorite of a very large number of stoners – and is even the Cannabis Cup winner back in 1995. You’ve got to smoke it once to become a fan!

 

2. Jack Herer Autoflowering Marijuana Seeds

Jack Herer Autoflowering Marijuana Seeds
  • Dominant Strain: 70% Sativa-dominant, 20% Indica, 10% Ruderalis lineage
  • THC Level: Up to 16.25% THC content
  • Effect: Upbeat, Cheerful, Relaxing
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Crop King Seeds
  • CBD Level: Insignificant
  • Flavor Profile: Skunk-like, Pungent, Sweet
  • Flowering Time: Up to 9 weeks on an average
  • Yield: About 150 grams per square meter (indoors), 250 grams per plant (outdoors)

Another rather well-known name among those who smoke weed regularly, the Jack Herer strain is a fast-growing strain of marijuana, which doesn’t grow too tall and is an ideal strain for indoor growers. It carries about 70% Sativa, 20% Indica, and 10% Ruderalis lineage. Tracing its origin in Spain, Jack Herer carries a decent amount of THC content which is neither too high nor too low and allows you to relax really well. The plant can grow in pretty much every climatic condition and is an easy one to deal with. 

When you smoke the Jack Herer strain, you get an intense high, even though it carries only about 16.25% THC content on average, the kind of high that you experience here is very relaxing and one that would help you bust some stress after a tiring day. The strain helps you think clearly and focus better – and makes for a good option for people dealing with ADHD/ADD or other ailments where they have trouble concentrating. The strain, when fully mature, gives you about 150 grams per square foot of usable weed indoors, and about 250 grams per plant outdoors. Jack Herer usually grows to a height of about 3.5 to 4 feet – which makes it a good plant for growing indoors.

This is one of the most ‘authentic’ smelling marijuana plants out there, thanks to its Skunk lineage. The primary parent plant before being crossed with a Ruderalis strain comes as a mix of Shiva Skunk with Northern Lights crossed a Sativa plant from the Haze family. This lineage is among some of the best in the business and this is what makes the plant so special. While the smell it leaves behind is Skunk-like and pungent, what is really intriguing here is that it does leave behind some sweet undertones too.

 

3. Alaskan Diesel Autoflowering Marijuana Seeds

Alaskan Diesel Autoflowering Marijuana Seeds
  • Dominant Strain: Indica-dominant
  • THC Level: Usually between 15 to 20% THC content
  • Effect: Relaxing, Overpowering, Body High
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Seedsman
  • CBD Level: Insignificant
  • Flavor Profile: Sweet, Diesel
  • Flowering Time: Up to 9 weeks on an average
  • Yield: Up to 450 grams per square meter (indoors)

The Alaskan Diesel autoflowering strain comes as a cross between two autoflowering strains – the Candy Fruit Auto, and the Selected Diesel Auto strain. This is a strain that has been bred and developed by the Seedsman Seed Bank itself and is among the best quality seeds over there. It is an Indica-dominant strain that has some portions of Sativa and Ruderalis strains too. For an autoflowering plant, the Alaskan Diesel Auto actually gives you a pretty good yield as well. It grows well indoors as well as outdoors and offers a good high. Everything about this strain is perfect, making it one of the best autoflowering marijuana strains out there.

This autoflowering marijuana strain usually takes about 9 weeks to mature and carries up to 20% THC levels. While it is generally perceived that autoflowering strains usually carry a lesser amount of THC, this one isn’t one of those and the THC content in this strain is good enough to get you pretty buzzed. When we tried out this strain, we felt an intense, relaxing, high which got us buzzed in just a matter of minutes. The buds that grow here are very juicy and carry a lot of resin in them. This is a great option for those who like to press resin to make extracts.

Lastly, in terms of the taste and smell, this strain totally takes off from its parent strains. It has got that sweet taste that the Candy Fruit auto strain carries, and the diesel-like element that comes from the Selected Diesel parent. Together, this ‘sweet diesel’ combination is something very unique, and one which we haven’t really experienced in the past. This is also an easy-growing plant that provides decent yields of up to 450 grams per square meter. All in all, a good bet if you are looking for an autoflowering plant.

 

4. Strawberry Banana Autoflowering Seeds

Strawberry Banana Autoflowering Seeds
  • Dominant Strain: Balanced split between Indica and Sativa strains
  • THC Level: Up to 27% THC concentration
  • Effect: Uplifting, Creative, Relaxed, Euphoric
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Seedsman
  • CBD Level: Up to 1% CBD
  • Flavor Profile: Strawberry, Ripe Bananas, Bubblegum
  • Flowering Time: Anywhere between 9 to 11 weeks
  • Yield: Up to 600 grams per square meter indoors

Another strain from the Seedsman Seed Bank, this one is just the perfect autoflowering option for those who love a little bit of a fruity taste in their weed. The strain is a cross between the StrawNana strain with a generic autoflowering ruderalis, giving you an extremely potent offspring. This is pretty much an even split between Sativa and Indica genes and gives you a very balanced effect. The Strawberry Banana Strain is pretty much one of our favorite strains on this list.

Let us first talk about the THC content here. A jaw-dropping 27%. There are many non-auto strains which don’t carry as high a THC concentration as this one. Strawberry Banana Auto can knock you out. The high that you experience here carries elements of both – a Sativa strain, as well as an Indica strain. It starts off with a head high, giving you a very potent buzz that makes you feel light-headed and trippy, giving you a creative rush. Eventually, this high evolves into a more relaxing and refreshing sort of a feeling that allows you to ease into your bed and go to sleep. If you suffer from restlessness or insomnia, this is just the right kind of a bud for you.

The strain usually takes between 10 to 11 weeks to get ready for harvest and produces up to 600 grams per square meter when grown indoors. When grown outdoors, you get up to 500 grams per plant, both of which are pretty impressive numbers, especially considering that this is an autoflowering strain. As the name indicates, the taste that you get here is very strawberry and banana-like. However, you also feel strong notes of bubblegum when you exhale it. This is a strain that can have a strong effect even on those with a high tolerance so we suggest to go easy on this one!

 

5. Northern Lights Autoflowering Seeds

Northern Lights Autoflowering Seeds
  • Dominant Strain: 70% Indica-dominant, 20% Sativa, 10% Ruderalis genetics
  • THC Level: Up to 15% THC content
  • Effect: Relaxing, Refreshing, Comforting
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Crop King Seeds
  • CBD Level: Up to 1% CBD content
  • Flavor Profile: Earthy, Honey, Musk
  • Flowering Time: Up to 8 weeks on an average
  • Yield: Up to 250 grams per square foot (indoors)

What can we tell you about the Northern Lights strain that you don’t know already? One of the most popular marijuana strains on the planet, this is just an autoflowering variant of the strain. This is a very fast-growing strain that offers dense buds and a pretty good ‘high’ when you smoke it. Developed in the Netherlands, the strain carries about 70% Indica genetics, 20% Sativa, and 10% Ruderalis lineage. This autoflowering variant of Northern Lights comes from crossing the original Northern Lights strain with a generic autoflowering Ruderalis plant. 

We called it a fast-growing bud because it takes up to 8 weeks to get ready for the harvest phase, which is one of the biggest benefits that you get here. When ready, the plant usually has up to 250 grams per square foot of usable bud which isn’t too much – but is a decent amount for an autoflowering strain. You get about 15% THC content in this strain – which doesn’t look like a lot at the first glance, but when you smoke it, it really hits you hard and gets you buzzed in a few puffs. When you grow it outdoors, you get a somewhat higher yield but the difference really isn’t much.

You get fat and dense buds here which are rich in resin. This is a major advantage for those who don’t want to smoke it but want to extract THC out of the buds by getting them pressed. The strain also smells of honey and musk, which is a unique smell – somewhat different from the parent strain. It carries an Earthy Afghani type of a smell too when you exhale it. The parent strain of this plant has won the Cannabis Cup in the past and is one that helps you get refreshed and relaxed in a way like no other!

 

6. GG4 Gorilla Glue Autoflowering Seeds

GG4 Gorilla Glue Autoflowering Seeds
  • Dominant Strain: Equal split – 50% Sativa, 50% Indica lineage
  • THC Level: Up to 26% THC content
  • Effect: Relaxing, Uplifting, Happy High
  • Type of Seeds: Autoflowering, Feminized
  • Seed Bank: ILGM
  • CBD Level: Insignificant levels of CBD content
  • Flavor Profile: Sweet and Sour, Earthy, Pine-like
  • Flowering Time: Somewhere between 10 to 14 weeks 
  • Yield: Up to 15 oz per square meter

The Gorilla Glue (GG4) autoflowering strain is another popular name in the arsenal of ILGM. The strain offers really high THC levels, which makes it a favorite among growers. The strain also offers a very balanced high, which is relaxing as well as euphoric. The strain is a perfect mix of both the genetics, as it comes with 50% Indica and 50% Sativa lineage. This is also a low-maintenance strain and is great for beginners as well as indoor growers. This strain is sometimes also known as the Original Glue autoflower strain.

Let us first talk about ‘the big deal’ about these plants – they carry, in them, a jaw-dropping 26% THC levels. This is the amount of THC that is quite high even for a regular plant, let alone an autoflowering variant. This is absolutely what makes it an instant favorite! Smoking this strain would get you high really quickly. Thanks to its balanced genetic heritage, the strain offers a mixed kind of a buzz – first, you will feel a euphoric and social high which makes you talkative and gives you that feel-good factor. However, that eventually eases out into a more mellow and relaxed sort of a feeling. This is great for those who want a happening evening but want a restful sleep after that. For anyone wondering, the strain carries insignificant levels of CBD.

GG4 is a strain that is rather easy to grow as well, and does not grow too tall. This makes it a perfect bet for anyone planning on growing marijuana plants indoors – in grow tents. These are autoflowering strains so you don’t really have to worry about adjusting the lights or changing their patterns to get the flowering triggered. However, keep an eye on them and when flowers start appearing make sure you are reducing the lighting hours to at least a pattern of 18/6 for best results. These strains are ready for harvest in a maximum of 14 weeks, and provide a yield of about 15 oz per square meter.

 

7. Candy Cane Autoflowering Marijuana Seeds

Candy Cane Autoflowering Marijuana Seeds
  • Dominant Strain: 60% Indica-dominant, 30% Sativa genetics, 10% Ruderalis
  • THC Level: Up to 17% THC content
  • Effect: Relaxing, Refreshing
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Crop King Seeds (CKS)
  • CBD Level: Quite low
  • Flavor Profile: Sweet, Candy, Sugary
  • Flowering Time: Up to 7 weeks on an average
  • Yield: Up to 200 grams per square meter

One of the fastest-growing and sweetest tasting strains in the collection of Crop King Seeds. This one is an absolute delight for those looking for autoflowering plants that grow up quickly. There are some autoflowering strains that take up to 14 weeks to grow while there are others that are ready in half that time. This one falls in the category of the latter. The strain is rather simple and easy to grow, and much of it grows without attention from the growers. This carries an exotic taste and delivers a euphoric high that is bound to make you happy!

The candy cane strain of marijuana carries up to 60% Indica genetics, and about 30% Sativa Genetics. The other 10% is the Ruderalis strain, which is responsible for the autoflowering nature of the plant. The Candy Cane autoflowering strain carries about 17.81% THC content while the amount of CBD stands unusually low, around 0.1% on most occasions. As we pointed out earlier, this is one of the quickest growing autoflowering strains, and it is ready to harvest in about 7 weeks. This means that you can grow more plants in the same time period.

The kind of high that this strain gives you is euphoric at first, but that feeling soon turns into a very strong body high, which is often quite long-lasting. Even after you wake up, you will feel rather light and refreshed. Another thing about the Candy Cane strain is that it is rather sweet-tasting and fruity in nature. The strain offers a very different sort of taste than regular weed and is quite an exotic tasting variant that most stoners tend to enjoy. Also one last thing that you need to know about this strain is that this was created by crossing three legendary parent strains together – the AK47, Mango, and White Widow.

 

8. Blueberry Autoflowering Marijuana Seeds

Blueberry Autoflowering Marijuana Seeds
  • Dominant Strain: 80% Indica dominant, 20% Sativa lineage
  • THC Level: Up to 14% THC content
  • Effect: Relaxing, Uplifting, Comforting
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: ILGM
  • CBD Level: Insignificant
  • Flavor Profile: Berry-like, Sweet, Pine, Vanilla
  • Flowering Time: Up to 10 to 14 weeks on an average
  • Yield: About 15 oz per square meter

Another of the most popular and among the highest-selling strains on the ILGM platform, the Blueberry autoflowering marijuana plant is a good option for both, indoors as well as outdoor growers. The primary parent strain, which is the Blueberry strain has been around since the 1970s and has been an all-time classic. This autoflowering variant of the Blueberry strain gets ready in about 10 to 14 weeks, and produces one of the most distinct tastes and smells that you can find in the marijuana markets. It carries up to 14% THC content and takes about 14 weeks to fully grow. It offers a yield of about 15 oz per square meter.

The strain carries an 80% Indica and 20% Sativa lineage. It has been among the top-ranked names for a very long while, even winning the Cannabis Cup in the ‘Best Indica’ category back in 2000. The strain comes as a cross between an Afghani Indica strain and a Thai Sativa strain. This Thai Sativa strain that we are talking of is a mix between the regular Thai strain and the Purple Thai Sativa – which is primarily responsible for the strong color and taste of the bud. The Sativa presence here is minimal and you feel a calming and relaxing sort of a high after you’ve smoked this strain. The Blueberry Autoflowering strain doesn’t grow too tall and is perfect for indoor grow tents.

As the name indicates, you get a nice and berry-like flavor here. It has quite a few sweet notes to it, along with an undertone of a creamy vanilla essence that you feel when you exhale the smoke out. The smell of this strain is pine-like and it will hang around in the space for a long time after you’ve done smoking. The overall taste and smell profile of this strain is rather refreshing. While the strain can get you high, it also carries some medical properties – helping you deal with stress and anxiety. The strain works well with those dealing with chronic pain and aching muscles. It also helps boost one’s appetite.

 

9. Pineapple Cookies Autoflowering Seeds

Pineapple Cookies Autoflowering Seeds
  • Dominant Strain: 50-50 split between Sativa and Indica strains
  • THC Level: Around 20% THC content
  • Effect: Relaxing, Sleepy, Euphoric
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Seedsman
  • CBD Level: Under 1% CBD
  • Flavor Profile: Sweet, Pineapple, Cookies, Earthy
  • Flowering Time: Up to 9 weeks
  • Yield: Up to 600 grams per square meter (indoors)

‘Purple Cookies’ is a very exciting name – and the strain too, delivers on the hype that is around its name. The Purple Cookies autoflowering marijuana strain is a 50-50 split between Indica and Sativa genetics. The strain was created by crossing the Girl Scout Cookies strain with the UK Pineapple strain, and a third Ruderalis strain was also added to the mix to provide the plant with its autoflowering property. Purple Cookies is a strain that offers high THC levels and also carries quite a few medical properties. Interestingly, this is also a rather high-yielding autoflowering plant. 

Among the biggest benefits that this strain offers, something that people really appreciate is the fact that it is usually ready to be harvested in about 8 to 9 weeks. The strain also offers an indoor yield of up to 600 grams per square meter, which is pretty decent. You can grow them outdoors as well as indoors. When you grow them indoors, you can provide as many as 20 hours of light to these plants and they will grow really well as well as really fast. Greenhouse growers, too, can grow this strain with ease. 

Coming to the THC levels at offer here – the Purple Cookies strain can deliver THC potency North of 20% at times, which is pretty strong. The kind of high that you get here is a mix of Sativa-like euphoria and focused rush, which eventually progresses into a strong and smooth body high that provides you a relaxing effect, helping you de-stress. This strain also helps people deal with anxiety and depression as well as with mood swings. The strain carries the sweet cookie-like taste, and also has some citric notes that are common in the Pineapple strain. When you exhale the smoke, you leave behind an earthy sort of a smell that lingers around for a while.

 

10. Girl Scout Cookies Extreme Autoflowering Seeds

Girl Scout Cookies Extreme Autoflowering Seeds
  • Dominant Strain: 80% Indica dominant, 20% Sativa genetics
  • THC Level: Up to 21% THC concentration
  • Effect: Relaxing, Comforting, Soothing, Happy
  • Type of Seeds: Autoflowering, Feminized
  • Seed Bank: ILGM
  • CBD Level: Under 1% CBD Content
  • Flavor Profile: Sweet, Diesel, Earthy, Lemony, Pungent
  • Flowering Time: Up to 14 weeks
  • Yield: Up to 15 oz per square meter (indoors)

The Girl Scout Cookies strain is already a very popular name. This is their autoflowering variant, and it is one of the highest-rated autoflowering strains on the ILGM Seed bank, with a rating of a perfect five stars. The strain carries about 80% Indica genetics and 20% Sativa lineage. It offers a high amount of THC concentration and is great for growers who plan on growing it indoors as well as outdoors. It is also a decent candidate for those planning on growing weed in a greenhouse. The strain comes as a cross between the Durban Poison strain and the OG Kush strain crossed with a Ruderalis plant which gives it the autoflowering characteristics. 

Notice the ‘Extreme’ in the name – that is the kind of effect it has on you when you smoke it! The Girl Scouts Cookies Extreme strain gives you a strong body high, which locks you to your couch. It is a strain that helps you relax and sleep better. This is just the right kind of strain for people who have had a long and tiring day and are in desperate need of a good night’s rest. 

This strain will help you reset your body after you wake up, and you’ll feel very refreshed. It gives a happy high, which helps you relax. It also induces positive thoughts and boosts confidence. Do note that this is a very strong strain and if you smoke too much of it you might feel paranoia and nausea. We suggest you go easy on this one. This is a pretty good strain for dealing with chronic pain, as well as with mental health challenges such as anxiety, depression, and stress.

You will start seeing the flowers in about four to six weeks, and the strain will be ready to harvest anywhere between 10 to 14 weeks. This is a fast-flowering strain that gives you up to 15 ounces per square meter when you grow it indoors. The buds tend to have a unique purple color which makes them quite attractive as well. All in all, definitely one of our favorites when it comes to autoflowering marijuana seeds.

 

11. Bruce Banner Autoflowering Feminized Marijuana Seeds

Bruce Banner Autoflowering Feminized Marijuana Seeds
  • Dominant Strain: Sativa-dominant strain, traces of Indica too
  • THC Level: Up to 25% THC concentration
  • Effect: Euphoria, Socializing, Happy High
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Seedsman
  • CBD Level: Under 1% CBD content
  • Flavor Profile: Berry, Sweet, Diesel
  • Flowering Time: Up to 11 weeks on an average
  • Yield: Up to 600 grams per square meter indoors

The Bruce Banner Autoflowering strain is, as the name suggests, the autoflowering version of the massively popular Bruce Banner strain. This is a plant that is rich in resins and gives you juicy buds that can be used for making extracts. Developed by FastBuds and sold at the Seedsman Seed Bank, this autoflowering marijuana strain gives you a very high THC concentration, along with a very high yield too. There are also some medical properties associated with the plant – all of which put together make it a very special strain for many stoners!

The strain grows a little taller than what you’d expect an autoflowering plant to be. However, it still isn’t tall enough to cause problems to indoor growers. The plants usually go to heights up to 150 cm which is approximately 5ft. The height comes from the Sativa genetics of this plant. Sativa is the dominant strain here, though there is some Indica lineage too. The plant tends to branch a lot so keep an eye out for them while growing it. It takes up to 11 weeks to be ready for harvest and provides a bumper yield of about 600 grams per square meter. When you grow it outdoors, you get up to 200 grams per plant, which is quite something! The buds are absolutely loaded with resin here.

The Bruce Banner autoflowering strain carries up to 25% THC concentration, which is pretty massive for an autoflowering plant. It gives an uplifting and euphoric high which gets the stoners all giggly and excited. This is a great strain for those with social anxiety before an event. The strain carries a berry-like sweet taste with hints of diesel underneath, giving a unique smoking experience. While the CBD content isn’t too high here, this strain has shown quite a lot of benefits when it comes to managing and dealing with pain.

 

12. Train Wreck Autoflowering Marijuana Seeds

Train Wreck Autoflowering Marijuana Seeds
  • Dominant Strain: 60% Sativa-dominant, 30% Indica, 10% Ruderalis genetics
  • THC Level: Up to 18% THC content
  • Effect: Creative, Relaxing, Happy, Comforting, Sleepy
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Crop King Seeds
  • CBD Level: Nearly 0% CBD
  • Flavor Profile: Sweet, Lemon, Spices, Pine 
  • Flowering Time: Up to 10 weeks on an average
  • Yield: Up to 450 grams per square meter (indoors)

The autoflowering train wreck strain comes as a cross between some popular and potent names – including an Afghani Indica, a Thai Sativa and a Mexican Sativa crossed with a Ruderalis plant. The strain has an overall 60% concentration of Sativa genes, 30% Indica, and 10% Ruderalis lineage. The strain originated in Spain and offers a decent amount of THC level, as well as a rather fast flowering period compared to some other autoflowering plants these days. It provides a decent amount of yield too. This is another of the highest-rated strains on Crop King Seeds and one that you must check out. 

The train wreck autoflowering strain loves a warm and dry weather. Make sure you are keeping the humidity levels low while growing this strain. Also when we say warm, we don’t mean hot. Make sure the temperature remains pleasant and suitable for the plant to grow, and doesn’t get so hot that portions of it start burning off. Topping is a good technique to maintain the height of the plant if you start falling short of space. Usually, it takes the Train Wreck strain somewhere about 10 weeks to peak, and the maximum yield that it can provide you is somewhere around 450 grams per square meter. If you grow it outdoors, you’ve got to harvest it around early to mid-October.

The strain carries about 18% THC levels and has nearly 0% CBD in it. Despite having nearly no CBD content, it can still give you a very relaxing and almost sedative-like feeling which helps one sleep better. The strain also carries properties of pain relief and relief from muscle spasms. People dealing with depression, PTSD, and anxiety can also benefit from Train Wreck. Lastly, coming to the kind of high you get out of it, it is a very mellow and relaxing sort of a high which opens up your creative processes. However, if you smoke a little too much of it you’re going to put yourself in a couch-lock, so be careful.

 

13. Gelato Autoflowering Seeds

Gelato Autoflowering Seeds
  • Dominant Strain: Near equal split – 55% Indica, 45% Sativa 
  • THC Level: Up to 26% THC content
  • Effect: Uplifting, Euphoric, Creative, Relaxing, Comforting 
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: ILGM
  • CBD Level: Under 1% CBD content
  • Flavor Profile: Sweet, Sugary, Creamy, Pine, Floral, Mint, Spices
  • Flowering Time: Between 10 to 14 weeks on an average
  • Yield: Up to 15 oz per square meter (indoors)

A strain that is almost evenly balanced, but pipped slightly towards the Indica strain, Gelato Autoflower offers high THC levels and a very relaxing head high as well as a strong body high. The strain takes about 10 to 14 weeks to fully mature and offers a decent yield of about 15 oz per square meter, which is considered average when you look at autoflowering strains. The Gelato strain comes from a cross between the Thin Mint Girl Scout Cookies strain and the Sunset Sherbert strain. Some people also call this strain the “Larry Bird” strain, in honor of the legendary basketballer. This is totally one of the best strains for those people who love a little bit of flavor in the weed they are smoking.

Seeds of the Gelato autoflower strain are rather easy to grow and don’t really pose a lot of challenges to growers. These strains don’t grow too tall but tend to be quite bushy and have a lot of branches so make sure you’re keeping some space between your seeds. These strains prefer humid conditions so crank up your humidifier levels while growing them, especially during their early phase of growth. Gelato autoflowering strain offers some really high THC levels – going as far as 26% in some cases, so better be careful while smoking them. 

The strain gets its taste from its parent strains – a sweet taste that is a little too similar to what you might experience when you smoke the Girl Scout Cookies. There are notes of sugar, vanilla, pine and flowers in this strain. When you smoke it out, you get a creamy feel too – and the smoke is quite dense. Lastly, if you’re lucky, there might be some notes of mint that pop up from time to time. If flavor is your deal, this is totally one of the best strains of marijuana out there for you! You start feeling the effects of this strain on you in a matter of minutes as it tends to be a really strong strain. There’s initial euphoria and eventual relaxation that this strain offers you.

 

14. Lamb’s Breath Autoflowering Marijuana Seeds

Lamb’s Breath Autoflowering Marijuana Seeds
  • Dominant Strain: 85% Sativa-dominant strain, 5% Indica, 10% Ruderalis
  • THC Level: Up to 25% THC content
  • Effect: Head Rush, Creative, Euphoric, Happy High
  • Type of Seeds: Autoflowering, Feminized
  • Seed Bank: Crop King Seeds
  • CBD Level: Insignificant (<1%) CBD content
  • Flavor Profile: Cheese, Woody, Tobacco, Skunk
  • Flowering Time: Between 7 to 9 weeks
  • Yield: Up to 250 grams per square meter

While the strain might not carry the most enticing of names, it does offer a very ‘authentic’ marijuana experience. This is a strain that is perfect for those stoners who love to have a strong tasting and a strong-smelling kind of weed. Lamb’s Breath grows well indoors as well as outdoors. This is a strain that adapts to all kinds of environments and is rather easy to grow. The strain traces its origin in Jamaica and has been around for a while now. It carries a relatively high THC content and very little CBD. The strain doesn’t take too long to grow either and offers a modest yield. 

When you look at the genetic makeup of Lamb’s Breath, you’ll notice it is 85% Sativa-dominant, features about 5% Indica strains, and about 10% Ruderalis strains. The strain grows in the nature in Jamaica. The strain carries Up to 25% THC content and gives you a head high which hits really fast. In just a few drags, you’ll be feeling the effects of this strain in its entirety. You get a very strong head high here and one that can totally knock you out if you’re not careful enough with it.

When you look at this strain, it has quite fat and juicy buds that are full of resin. One can use them to extract THC by pressing the buds. The Lamb’s Breath strain has a strong flavor to it. There’s the classic skunk-like smell that we typically associate weed with. Then there’s a strong and cheesy smell that comes off from the strain. There’s also a tobacco-like smell that comes off the strain. You also feel some sweet notes, along with a cloud of very dense and creamy smoke. The smell that it leaves behind is also rather strong and long-lasting.

 

15. Purple Punch Autoflowering Feminized Marijuana Seeds

Purple Punch Autoflowering Feminized Marijuana Seeds
  • Dominant Strain: Indica-dominant strain
  • THC Level: Up to 24% THC concentration
  • Effect: Relaxing, Comforting, Soothing, Calming
  • Type of Seeds: Feminized, Autoflowering
  • Seed Bank: Seedsman
  • CBD Level: Under 1% CBD level
  • Flavor Profile: Blueberry, Cherry, Cake, Spicy, and Herbal
  • Flowering Time: Up to 9 weeks on an average
  • Yield: Up to 600 grams per square meter (indoors)

Here comes the final name on this list – the Purple Punch autoflowering strain. Don’t consider this the last and least sort of a thing, because this strain can (as it states in its name) deliver quite a punch! The Purple Punch strain is an Indica-dominant plant that offers a very high THC content. It is also a strain that tastes really well and does not take too long to flower as well. You also get some resin-covered buds here, which can be pressed with ease to take out extracts. Another thing that we love about this strain is that it is pretty resistant and can grow indoors as well as outdoors without much of a problem. 

The strain comes by crossing the Purple Punch strain with an autoflowering Ruderalis strain and has been developed by the breeders at FastBuds. The strain offers a strong THC content of over 24%. The CBD concentration here is pretty low, usually remaining well under 1%. The kind of high you get from this strain is also quite unique. It provides a strong body high and helps you relax physically without falling into what is typically seen as ‘couch lock’. Purple Punch is a dream come true for people who want extracts or concentrates made out of cannabis plants because it is extremely rich in resins.

This strain takes between 8 to 9 weeks to grow to its full potential and carries a strong yield of about 600 grams per square meter when grown indoors. Thankfully it doesn’t grow too tall either and attains a maximum height of 5ft which is quite manageable by indoor growers. You get a taste of Blueberries and Cherries when you smoke this cannabis strain. Smoking this strain is like digging your teeth in a slice of cake. It leaves behind a spicy and herbal kind of a smell after you’ve exhaled it.

Editor’s Pick: Which Autoflowering Strain to Buy From The List?

Autoflowering strains are among some of the best options for people who are either short on time, or for people who don’t have enough experience growing marijuana seeds. These strains might offer a somewhat lesser yield than a regular plant, but the quality is exactly the same. If you are looking for some high-THC auto flowering strains, we strongly recommend trying out the GG4 Strain and the Bruce Banner strain

For those who want a little bit of taste along with their weed, you can totally check out the Gelato Strain and the Candy Cane strains. These not only give you a unique taste and flavor profile but also leave behind a strong smell that keeps you refreshed for hours. 

Lastly, if you are looking for easy-to-grow strains, you can totally check out the Alaskan Diesel strain, which is beginner-friendly and low maintenance. It does not require too much of an effort on the grower’s end, and it also produces decent yields. People looking for autoflowering strains are often looking for easy-to-grow options and this is totally one of them. 

Frequently Asked Questions (FAQs) About Autoflowering Seeds 

We often get a lot of questions about autoflowering marijuana plants. A lot of misinformation has also been making rounds about these strains of late. Hence we decided to collate these questions and answers together under this section to provide you with a better idea about autoflower weed seeds and what to expect from them.

1. Do autoflowering seeds produce a lesser yield compared to regular seeds?

Yes, this is not a myth – autoflowering plants do produce a lesser yield compared to regular strains. This is because they tend to grow faster and do not produce as much foliage as regular plants do. Hence, the number of buds and flowers growing on them is also lesser – producing a lesser yield. Nonetheless, given the speed at which they grow, if you plan on growing long-term, you are at an advantage compared to regular plants. However, it is indeed a fact that these strains are often low-yielding.

2. How long do autoflowering plants need to flower?

Different types of autoflowering plants tend to take different lengths of time to reach the flowering phase. There are some that start flowering early while others take a little longer. However, on average, a majority of autoflowering marijuana plants start flowering in about 8 to 9 weeks. There are some variants which tend to flower even in seven weeks while there are others which might take up to 12 weeks to mature. Different strains take up different amounts of time – so you’ve got to check with your seed bank for the exact number. 

3. Can I keep lights on for 24 hours while growing autoflowering marijuana plants?

While technically you can do this, and there are many growers which actually provide up to 24 hours of lighting to their plants, we would suggest that you do not do this and follow a pattern of 18/6 at the least – giving your plant 18 hours of sunlight and 6 hours of darkness, which will help them rest for a while, as well as allow for the tissues to heal and grow properly. Turning the lights on for 24 hours will also stress out your plants quite a bit and will cause tissue damage without giving them the time to regenerate. 

4. Where can I buy the best autoflowering marijuana seeds from? 

In order to get hold of good-quality marijuana seeds, we recommend that you buy them from reputed seed banks only. We have, in this article, chosen some of the best and the most popular seed banks of all time – Crop King Seeds, I Love Growing Marijuana (ILGM), and the Seedsman Seed Bank. You can also check out a local seed bank near you to get hold of these autoflowering seeds. However, these are reputed names that provide guaranteed shipping which is also safe and delivered globally. 

5. Are there any side effects of smoking the weed that comes from autoflowering cannabis plants?

All weed carries some side effects associated with it. As such there are no side effects that are specific or limited to autoflowering plants – and what applies to regular strains applies to autoflowering strains too. You get the occasional red eye, scratchy or itchy throat, a dry mouth – and if you smoke a little too much of it, you might feel dizzy, nauseating or anxious. Other than that, there is no specific side effect that you will experience when you smoke an autoflowering variant of marijuana.

Conclusion

We hope that by the time you reach this section, you have familiarized yourself with the different options there are when it comes to the best autoflowering strains available in 2022. These strains have been carefully handpicked by us, and if you have any feedback regarding them, please let us know. Besides that, we are always eager to hear from you! If you are planning on buying a strain and want us to review it, please let us know about that over the comments or drop us an email and we shall add those strains to our list as well. Till then….

…Happy Smoking! 🙂 

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