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G13 Autoflower Seeds

G13 Autoflower Seeds

  • checkmarkFeminized seeds for guaranteed results
  • checkmark70% indica 30% sativa
  • checkmarkMedium THC level towards 20%
  • checkmarkEasy growing inside and outdoors
  • checkmarkA great strain for relaxation and unwinding
More product info
From $99
Pack Quantity
5 $99
10 $129
20 $199 Best buy

Your seeds usually arrive within two weekdays but they can take up to a week to arrive. We guarantee safe delivery of your order. Contact us if you have shipping issues.


We handpick premium quality seeds, but they're still a natural product. Follow our germination instructions and your seeds will sprout in no time. Contact us to replace any rogue duds.


We offer free shipping to all US states and never reference marijuana on the packaging or receipts.

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Easily pay with cash, bank, credit card, or Bitcoin. Our support staff is here to help. See FAQ

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Shipping Info

We ship to all USA states for FREE. Usually seeds arrive within a week.

Trouble with the mail? We will happily replace your seeds. See FAQ

Shop With Confidence

Robert Bergman and the ILGM team gladly share 25 years of experience!

Choosing Seeds

Feminized seeds flower and grow weed when they receive less than 12 hours of light per day. Harvest outdoors in fall, or indoors after 15-20 weeks. Professional growers use these.

Autoflower seeds grow small, easy-growing plants that you can harvest in 10-14 weeks. Great for new growers, small spaces, and multiple harvests per season!

How To Germinate

Germination is guaranteed when you soak the seeds in water up to 72 hours in darkness. When it shows a tail, put it in loose soil with fertilizer. Keep it light and damp and a seedling will appear!

how to germinate marijuana seeds

The Best Deals

Mix Packs are seed variety packs that come with discounts up to 50%. Every strain we offer is also available in a Mix Pack! See All Mix Packs

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G13 Autoflower Seeds

  • Feminized seeds for guaranteed results
  • 70% indica 30% sativa
  • Medium THC level towards 20%
  • Easy growing inside and outdoors
  • A great strain for relaxation and unwinding

This mysterious strain is both well known and completely unknown. No one knows where it comes from, exactly, and it has unique effects that are hard to replicate. It used to only be grown by cuttings and clones rather than from Cannabis seeds.

That didn't stop us from searching for seeds. We're excited to carry marijuana seeds for this epic, mysterious strain, and we're also making it easier to grow. Our G13 autoflower seeds offer the added benefits of an autoflowering strain as feminized seeds. Any G13 autoflower review will show how amazing this strain is to grow - we have the Cannabis seeds to help you grow it.

Plant type 70% indica 30% sativa
THC Up to 20%
CBD Insignificant amounts
Difficulty Moderate
Climate Indoors | Continental | Steppe
Plant size Average
Vegetative stage 3 to 4 weeks
Flowering time 7 to 10 weeks
Yields 5 to 15 oz per plant
Taste and Smell Earthy | Herbal | Pungent | Citrus
Effects Euphoric | Happy | Hungry | Relaxed | Sleepy
Terpenes Humulene | Ocimene | Carene | Myrcene | D-Limonene

G13 Autoflower Origins

G13 Autoflower is an indica dominant Cannabis strain that sometimes acts like a sativa. Autoflowering G13, like any auto strain, has ruderalis genetics. Autoflowering Cannabis is beloved by many Cannabis growers because of its simplified flowering stage and smaller plant size. The seeds behave just like any other marijuana seeds, however, they reach their harvest on schedule every time.

Autoflowering feminized seeds don't rely on light to flower. Instead, they follow their internal clock and flower when they're ready, not when the light changes. That means that when to harvest G13 is based on a schedule rather than environmental shifts.

What is G13 Autoflower?

G13 Auto, like its feminized photoperiod relative, has entire folklore behind it. This mysterious marijuana strain might be the outcome of governmental experiments in the 60s. Supposedly, one of the researchers took matters into their own hands and delivered that marijuana research into the hands of growers.

This researcher secretly took a cutting, brought it home, and went from there. With its strong indica genetics and sativa qualities, this strain immediately became popular. It was called "Government 13," but eventually shortened to the G13 name we all know. G13 Autoflower has a strong body high, with high yields and medium THC levels around 20%, but this strain will feel even stronger than that, especially when grown from seeds.

For generations, getting your hands on these potent genetics was challenging. This Cannabis strain was only found as clones, not marijuana seeds. But nowadays, this strain exists in seed form, and there is even an auto G13 for those who want this mysterious, unique strain but in autoflowering form.

Growing G13 Autoflower Seeds

Growing G13 Autoflower is safe for beginners, as the autoflowering version makes G13 easier to grow. In general, this strain does well at resisting diseases of all kinds. Plus, adding ruderalis to any indica or sativa makes it a more hearty plant. However, its autoflowering traits will shorten its lifecycle - even outdoors. Because these are autoflowering marijuana seeds, you can't keep the G13 veg time going longer than this plant wants. After a set number of weeks, flowering is automatic.

G13 autoflower enjoys nutrients, so a hydroponic setup is popular among growers. In any case, pruning is a good idea, however you must do so during the vegetative stage. These Cannabis plants tend to get dense and bushy and could be prone to mold or rot if there is not enough ventilation.

It is also important to note that, because this is an autoflowering strain, these plants will be significantly shorter and small in size when compared to regular G13 seeds. If you have ever seen G13 pics of regular photoperiod Cannabis, you should know that this strain may be an entire foot shorter than its counterparts. You can learn more information on cultivating this high THC strain in a G13 auto grow journal.

We advise also reading our germination instructions for guaranteed results.

Preferred Climate

A G13 grow setup should pay attention to moisture. Indoor setups or sunny and dry outdoor grows are best. Outdoors, maintain a temperature range of 65 degrees to 85 degrees Fahrenheit. Keep temperatures on the cooler side, as this Cannabis does better in slightly cooler environments.

Feeding G13 Autoflower

G13 Autoflower responds well to nutrients. Visit our nutrient section for the right plant food for every grow stage.

We recommend giving your plants:

Flowering and Yield

Plan on harvesting G13 Autoflower after about 9 to 11 weeks. Regardless of whether you're growing indoors or outdoors, you can expect a yield of 6 ounces per square meter of weed though experienced growers might be able to squeeze a little more out of this strain. While the G13 harvest for feminized seeds can reach as much as 40 ounces per plant in an outdoor grow, its autoflowering cousin is a smaller plant and, therefore, will have a bit less than that.

Experiencing The G13 Strain

Although G13 Autoflower is an indica-dominant strain, what you will experience is a little less clear-cut. You'll notice certain aspects that feel typical for an indica strain, such as full-body relaxation and some sleepiness. You could also get feelings of euphoria and happiness, though, which are more typical for sativas.

This is a potent strain with high THC and an interesting flavor, however, you'll likely notice how versatile its effects are. You could take it before sleep to relax after a long day, or take it with friends as you're in a more social environment. If you don't want to fall asleep, though, it's a great idea to have a caffeinated beverage on hand to combat the sleepiness.

Lots of people use G13 Autoflower before pursuing creative or artistic activities. You might even get some pain relief. All these effects combine into a complex and interesting strain that never gets old. Some people get dry mouth or dry eyes, so prepare accordingly with water and eye drops. You most likely won't get the munchies from this pleasant strain, but if it becomes too much, you could end up paranoid or dizzy. If that happens, simply go to bed.

G13 Smell and Taste

If you're looking for a subtle flavor, this won't be it. You'll get instant skunk and pungent smells and tastes when you take a drag from G13. You'll even get hints of this strong aroma when the buds are still attached to the plants during the flowering phase.

Luckily, some sweet undertones make it a bit more enjoyable for most people. You can also expect earthy notes (think pine). It's a combination you'll enjoy without quite understanding why.

Uses for G13 Autoflower

G13 Autoflower is the perfect pick-me-up that people who suffer from depression or insomnia truly love. Having some in the evening is the perfect way to relieve stress and calm your racing thoughts. Some people prefer to use it regularly to help with chronic tension in the body and mind.

Because of its high THC levels, you can expect hard-hitting effects to relax your body to the max. These effects are why people enjoy this potent strain before bed and get a better night's sleep.

Buy G13 Autoflower Seeds

You can buy G13 auto seeds per separate pack of 5, 10, or 20 seeds.

ILGM Guarantees

When you buy G13 Autoflower, we offer:

  • Discreet shipping and handling
  • Free shipping to all U.S. states
  • Guaranteed arrival of your order
  • Guaranteed germination of your seeds

Find more information in our support center.

Happy growing!

Reviews For G13 Autoflower Seeds

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