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If there’s one thing that both rookie and expert cannabis growers love, it’s growing auto-flowering seeds.

Not only are they easy to grow, but they’re also fit for indoor and outdoor cultivation. They’re fast-blooming and very low maintenance.

That said, you and I know they can be quite expensive sometimes…

This is why we’ve made this list of the best autoflower seeds from reputable seed banks.

We’ve made sure to include autoflower strains with high THC (up to 27%), good yields (up to 650g), and most importantly, good prices and deals (as low as $4/seed).

Let’s get started.

Best Autoflower Seeds for Sale: First Look and Reviews

    – Best auto seeds overall (free US shipping) – Refreshing, potent strain (from $5/seed) – Original medical cannabis strain with 5% CBD – Whole body relaxation – Ready to harvest in only 9 weeks (from $4/seed) – Strong Indica strain for tension relief – Sit back and watch a good movie – High 27% THC auto seeds – High yields of up to 650 g/m2 – Feel on top of the world

1. White Widow (ILGM) – Best Autoflower Seeds Overall

Auto White Widow has been the favorite autoflowering strain of novice and advanced growers since the 1990s.

It’s the brainchild of Green House Seeds and exhibits the best characteristics of its parents – the South Indian Indica strain and Brazilian Sativa Landrace.

With two highly potent Indica and Sativa cannabis strains mixed into one, you can expect a nice balance starting with cerebral stimulation followed by a mellow and soothing feeling.

This Indica-dominant hybrid has about 19% THC, but you won’t experience the typical couch-look effect of other Indica varieties. Instead, you’ll get a gentle bliss of relaxation and happiness marked by a pungy and earthy aroma.

Are you feeling stressed?

Well, you should know that White Widow is almost the best auto strain to unwind and forget your worries since it generally doesn’t lead to anxiety or paranoia.

In terms of growth, this 1995 Cannabis Cup winner is suitable for indoor and outdoor growing, as well as sunny and cool climates. It’s compact and blooms automatically without light manipulation.

Finally, with only 10 weeks from seed to harvest, even beginner growers could be smoking the delicious White Widow in no time.

2. Lemon OG Haze (Seedsman) – Best Autoflower to Grow Indoors

Tracing its roots back to the Lemon OG, Haze #1, and AK-48 strains, Lemon OG Haze is one of the best autoflowering cannabis seeds.

I’ll be honest − even though it’s suitable for both outdoor and indoor growers, you’ll find it much easier to cultivate indoors.

This predominantly Sativa strain exhibits a lemon-like aroma and taste with small hints of pine. Puffing it will make you remember what it’s like to sip a refreshing glass of lemonade in the scorching heat.

What about potency?

Well, Lemon OG Haze has up to 20% THC and around 5% CBD, making its effects quite vivid. You’ll experience a racy yet clear and uplifting feeling during your first few puffs. But the Indica component of this strain also brings out relaxing effects after a while.

With roughly 20 hours of light exposure, you can get high yields reaching 425 g/m2. You’ll also see its flowers blooming between its 10th and 12th week.

3. Jack Herer (ILGM) – The Original Medicinal Autoflower

If you’re hoping to feel empowered and have plenty of happy thoughts at the same time, the Jack Herer auto-flowering seed may just be ideal for you.

This Sativa-dominant hybrid initially acted as a medical cannabis strain before becoming a popular recreational strain. It’s well-loved because of its impressive effects and easy growing conditions.

Speaking about effects…

The Jack Herer strain has superior genetics that brings euphoria to your body almost immediately. And with up to 20% THC in one bud, you can expect its effects to linger for a while without being too overpowering.

It also boosts your creativity, mood, and energy. Just be careful because this strain can cause cottonmouth and, sometimes, anxiety.

Every puff will leave your mouth filled with hints of pine and spice. Jack Herer also has an aftertaste reminiscent of lemon and orange juice. You may even catch whiffs of cake and pepper.

4. Purple Kush (Crop King Seeds) – Best Autoflower Genetics

The Purple Kush autoflower cannabis seeds exhibit qualities reminiscent of Purple Afghani, OG Kush, and Hindu Kush.

It’s predominantly Indica and grows wide plants with thick dark green buds.

Several tokes of this Indica-Sativa-Ruderalis strain will leave you with a solid high. But you should know that the first few puffs may not be as soothing as you expect them to be. In addition, you might experience light coughing because of its high acidity.

Despite this, Purple Kush has a fruity and sweet aftertaste to neutralize this discomfort. You’ll also enjoy hints of berries, pepper, and sandalwood filling your room.

Do you have a hard time falling asleep?

Since this seed has a blend of Indica-Sativa and Ruderalis strains, you’ll experience a pleasurable feeling across your body and mind. But with 70% Indica, it’s an ideal cannabis strain for a peaceful and calming sleep.

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Beginner growers beware: this strain is highly sensitive to temperature and humidity changes. But it has a high tolerance to molds and other common diseases.

5. Bubble Gum (Seedsman) – Fastest Autoflower Strain

Are you not the “patient” kind?

Well, Bubble Gum is for you. With the right amount of sunlight, the autoflowering strain takes only 9 weeks from seed to harvest.

Besides, it’s been around since 1993 and contains the top qualities most tokers want in fast buds.

For one, these feminized seeds exhibit an extremely fruity scent complemented by a sweet and lingering taste. In addition, it has palettes of strawberry, bubblegum, and cherry.

And when mixed, you’ll feel like you’ve had a refreshing fruit smoothie to start your day.

On top of its flavor and aroma profile, the Bubble Gum Autoflowering strain produces large and dense buds. That means you’ll feel your body relax with every puff.

6. Northern Lights (ILGM) – Best Indica Auto Flower Seeds

The Northern Lights autoflowering cannabis seed is a popular Indica-dominant hybrid bred from indigenous Afghani Indica and Thai Sativa strains.

It’s one of the all-time favorites and has given rise to the famous hybrid strain, Super Silver Haze.

Tokers will also enjoy puffing this strain’s buds. It exhibits a soothing feeling in your mouth, topped with a sweet and spicy scent.

You’ll be left with a euphoric high and relaxing body effects. Your stress, tension, and sleepiness should also disappear.

This Indica-dominant strain is beginner-friendly because it’s highly resistant to diseases, which makes up for the relatively longer flowering period of 10-14 weeks from seed to harvest.

For the best yields, we suggest growing it outdoors in a sunny climate.

7. Afghan (Crop King Seeds) – Best Autoflowering Seeds for Better Sleep

Do you want to sit back and relax?

If so, Afghan autoflower is perfect to watch a good movie. (or even a bad one, you’ll enjoy it anyway!)

Don’t let its relatively mild 17% THC content fool you − it is potent enough to make you feel a strong buzz followed by a soothing sensation.

A single puff of this Indica-dominant strain will bring in a wave of motivating feelings and end with a deep relaxation. It puts you in a state of trance and will cause you to laugh and smile more.

You can also expect a strong earthy aroma with slight hints of sweet and pine flavors. The Afghan autoflower cannabis seeds are also extremely resistant to molds and mildew and can be grown by inexperienced growers.

8. Gorilla Cookies (Herbies) – Most Potent Autoflower Strain (Strongest)

Do you know what strain combines the potency of Gorilla Glue and the flavor palette of Girl Scout Cookies?

Unlike the other autoflowering cannabis seeds we discussed, this strain has the highest THC content (up to a whopping 27%), so beginners should stay away from it.

Because of this THC dose, expect a wave of different emotions with an impressive aroma and flavor profile. It’s the best late-night and after-work strain if you want to get stoned.

Your first few puffs will make you taste mint chip cookies complemented by highly euphoric effects. You then get a well-balanced mix of sweet diesel, lemon, and kush on every exhale.

The Gorilla Cookies autoflower seed is compact and is ideal if your growing space isn’t too big. It can also resist most temperature, humidity changes, and pests. To get the most out of your auto seeds, outdoor cultivation is the best way to go.

9. Green Crack (Seed City) – Super Autoflowering Seeds with High Yields

The Green Crack autoflowering strain fills your body with a rush of mango-flavored adrenaline. It’s charged with immense energy, topped with an extremely fruity flavor.

As one of the most popular strains in the world, this Sativa-dominant hybrid is most suitable for daytime blazing sessions. It has up to 20% THC and low levels of CBD in every bud.

That’s enough to keep you going without ending up in a couch-lock.

Looking for high yields?

Well, you can expect this plant to grow snow-white buds with yields that reach up to 650 g/m2 after a short flowering period of 8 to 9 weeks. This is quite impressive for an autoflowering version.

10. Sour Diesel (ILGM) – Best Auto Strain for Energy

With a blend of 40% Indica and 60% Sativa, the Sour Diesel autoflowering strain reaches up to 20% THC content. It’s an ideal go-to for stoners who want to achieve a psychedelic high.

Simply put − you’ll feel like you’re on top of the world.

You’ll also have good vibes and become more willing to take on new responsibilities.

The Sour Diesel Indica-Sativa autoflower has a strong aroma of diesel fuel. It also exhibits a pungent odor with small hints of herbal notes and sour lemon.

Buying Guide − How to Pick the Best Autoflower Strains

Knowing the best autoflowering marijuana seeds in the market is not enough. Even though autoflowers are easier to grow than photoperiod seeds, there are still other things you need to look into when buying different strains.

Like photoperiod seeds and feminized seeds, auto strains all have their own potency and profile. They also have varying growing conditions to produce high yields.

Below are the most important factors to make sure you grow the right autoflowering plants:

Indica vs. Sativa Strain

Most auto seeds are either Indica- or Sativa-dominant. If your strain is Indica-dominant, expect relaxing and calming sensations. On the other hand, a Sativa-dominant strain will generally make you feel a euphoric high.

THC vs. CBD Level

The THC and CBD content of a strain can greatly impact your desired effects. Since THC is a psychoactive compound, strains with higher doses of THC will leave a solid and lasting high.

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Meanwhile, those with higher CBD, a less psychoactive compound, will make you feel more relaxed and calm.

Indoor vs. Outdoor Growing

Some autoflowering strains grow wider rather than taller. Other strains may also thrive in different climates more effectively. That’s why it’s important to check your seed’s expected height and width and your local climate.

Brand Reputation and Reviews

Only buy autoflowering strains from top seed banks. Genuine reviews from previous customers and multiple awards given by legitimate cannabis contests can be great indicators of a highly reputable seed bank.

Germination Guarantee

Although autoflowering strains grow more easily than other types of cannabis seeds, it’s still good practice to check whether your chosen autoflower seed bank offers a germination guarantee policy. With this, you can get a full refund or replacement if the auto seeds don’t grow as expected.

Stealth Packaging

Because of strict laws and regulations, some cannabis plants and seeds get seized by Customs. To minimize this type of occurrence, check if your seed bank has a stealth packaging option.

Best Autoflowering Strains and Seed Banks – FAQ

We gathered the top questions about autoflowering seeds from other rookie and professional cannabis growers.

Take a quick look through them and get higher yields during cultivation:

What Is the Highest Yielding Autoflower?

The Green Crack cannabis seeds from Seed City are the highest-yielding autoflower seeds on our list. They can yield up to 650 g/m2.

What Autoflower Seeds Grow the Fastest?

Bubble Gum autoflower seeds grow the fastest, with an average flowering time of only 9 weeks.

Who Has the Best Autoflowering Seeds?

ILGM has the best autoflowering seeds, with popular strains such as White Widow, Jack Herer, and Northern Lights.

What Is the Strongest Autoflower in the World?

Gorilla Cookies are the strongest autoflower seeds in the world, with THC levels reaching up to 27%.

What Seed Bank Has the Most Autoflowers?

Seedsman has the most autoflowers, with more than 1,000 different varieties. These include popular and rare autoflowering strains such as Pineapple Express, Alaskan Diesel, and Forbidden Runtz.

What Is the Best Way to Germinate Autoflower Seeds?

The best way to germinate autoflowering seeds is to use the paper towel method. With this simple method, the seeds will sprout within 24 to 48 hours.

What Is the Best Organic Soil Mix for Autoflowering Seeds?

The best organic soil mix for autoflowering seeds is a mix of peat moss, compost, perlite, and vermiculite since autoflowering strains only need a few nutrients and well-aerated soil.

Best Autoflower Weed Seeds − Wrapping Up

Well, you now have plenty of auto-flowering strains to choose from − from high THC to high-yielding marijuana seeds, whether you’re looking for a relaxed or uplifting high, and more.

Auto White Widow (free shipping on ILGM) is the best autoflowering strain, with a good balance between Indica and Sativa, easy to grow for beginners, a reasonable 425g yield, and 19% THC.

Lemon OG Haze (from $5/seed on Seedsman) is a strong second choice for its relaxing, potentially therapeutic benefits.

That said, don’t forget to check local laws and regulations before you buy autoflower seeds.

And while you’re waiting for your marijuana seeds to reach you, feel free to read a few guides to get off on the right foot.

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Disclaimer: This article does not encourage growing marijuana where it is not legal to do so.

The news and editorial staff of the Bay Area News Group had no role in this post’s preparation.

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The news and editorial staff were not involved in the preparation of this article sponsored by an advertiser.

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Our range of autoflowering outdoor seeds allows you to combine the benefits of ruderalis genetics with strains that simply love the great outdoors. Most varieties of cannabis simply need the outdoors to reach their potential, with the natural light and fresh soil helping them grow vigorously and naturally. The term ‘autoflowering’ indicates that the strain has a parent of the ruderalis variety, which means that the plant will have a few qualities rarely found in photoperiod strains. The main difference being that autoflowering strains can grow regardless of how much light they get. This makes them ideal starting strains for beginners and new medical growers. Autoflowers have a greater resistance to diseases and pests which is an advantage to plants that grow outdoors. They also have a far greater tolerance for lower temperatures and harvest quicker than most photoperiod strains. Small in size, autolfowers grow up to 1 metre on average, allowing for multiple grows and ability to maximise your harvests. What more could you want?

Even More Great Strains

Outdoor growing can greatly simplify your operation. If you have a safe and discreet location to grow, putting your plants outside allows nature to take care of many of the expensive, time-consuming details for you. You don’t need to purchase and pay to run a lighting set-up. The sun takes care of that. The breeze manages ventilation and the soil and rain feed and nourish your plants. Depending on your particular location, you may need to supplement your plants’ diets with compost or fertilizer, and you may need to water sometimes. It is important to keep the ground moist during the first week until the seedlings germinate. After that most strains will do fine with a good rainstorm once a week or so. For detailed information on growing outdoors check out our outdoor grow guide here. We also have a guerrilla grow guide to help you plan a stealthy outdoor grow, and a description of essential site visits to help you plan out your schedule during the growing season. Also take a look at our Best Outdoor Seeds, and our guide to choosing the right strain for your particular climate.

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Why grow Autoflowering seeds?

Autoflowering varieties have been on the receiving end of a lot of abuse since they first came out. They have the reputation of being unreliable, low yielding and producing poor quality bud. But times have changed! With great breeding from a number of reputable seed banks, Autoflowering strains are now ready to compete with their light-dependent counterparts.

A quick review of autos for those of you who are new to this:

Autoflowering seeds contain Ruderalis genetics which make them flower independently of light conditions. Normal Indica, Sativa and hybrid strains require a decrease in day length to trigger flowering. If you are growing outdoors you have to wait until the natural cycle of changing day length sparks flowering to begin in your plants, and hope that it happens soon enough that they can fully develop before the first frosts.

Ruderalis is a wild strain of marijuana which evolved in the northernmost reaches of Alaska, Europe and Siberia. By the time the day length reaches 12 hours of light/12 hours of darkness in those places, freezing temperatures are mere weeks away. Ruderalis evolved a light-independent method of flowering to give itself time to produce seeds before it was killed by frost. Strains that contain these Ruderalis genetics begin flowering after a set amount of time. Typically this is only 2 weeks or so after they germinate.

The benefits for you:

As a grower, using an Autoflowering strain frees you from lighting changes. You don’t have to set your lights to 12/12, you can leave them at one cycle for all your plants, be they vegging or flowering. For outdoor growers, you can count on a harvest by a set date without worrying about changes in light. Autos typically produce much faster than regular strains, so you get a harvest sooner. While some strains still have a lower yield than their regular counterparts, the possibility of multiple harvests with less work makes up for this lack. And let’s not forget, there are many auto strains available with huge yields which can compete with nearly any regular seeds on the market. For the full story on Autoflowering strains, check out our Best Autoflowering Seeds page.

Why grow feminized seeds?

Unless you are trying to produce a new strain or improve the plants you have by selective breeding, you do not want seeds in your bud. Producing seeds takes energy away from THC production, resulting in a lower quality, less potent final product. Typically as plants begin to pre-flower you have to carefully check each one and remove the males, a process which means you lose about 50% of your plants. Feminized seeds have been altered, usually chemically but sometimes by selective breeding, to produce almost entirely female plants. While eventually you will probably be cloning your favorite mother plant to produce future generations of your favorite strain, at some point you will find yourself eager to try a new variety that you must begin from seed. Feminized seeds can save you a lot of time sexing and give you the most for your money as 99% of your plants should be females. Be sure to use a reputable breeder when you purchase feminized seeds, as some breeders produce less reliable seeds. For a full description of feminized seeds and a guide to our favorites, check out our Best Feminized Seeds.

The whole package…

For the easiest grow possible, choose a seed that combines all the great features of outdoor, Autoflowering and feminized strains. They are out there! Due to their hardy Ruderalis genetics, many auto strains are already a little tougher than your average plant. They can withstand changes in temperature, humidity and feeding more easily than their purebred sisters. Growing an auto variety also makes the stealth aspect of outdoor growing easier. These plants typically are very small, often staying under 2 feet in height. This makes them much easier to hide in a container on your apartment balcony or tuck into your flower garden in the back yard. Pay attention to the seed descriptions however, some autos reach over 4 feet in height in the 3 months of their short life! Combining Autoflowering with feminized seeds and choosing a strain suited for outdoor growing will give you a fast harvest with little input. If you live in a climate with a long growing season, you could plan for multiple harvests by growing autos. In fact, some strains can be grown year round in places where temperatures stay high enough.

2018 Best Outdoor, Autoflowering, Feminized Seeds

#1 Paradise – Pandora Autoflowering Feminized Seeds

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