G13 Cannabis Seeds

No one knows for sure where G13 seeds came from, but for sure, this strain has an uplifting yet calming effect. Get ready for a journey of euphoric relaxation. Learn everything you need to know about the G13 strain with grow tips, strain features, and where you can buy the best G13 seeds.

G13 Feminized

G13 Fem is an enigmatic weed that delivers high-flying euphoria in an instant and takes you on a journey of profound relaxation. This Indica-dominant strain creates an exceptional recreational experience that can be harnessed for medical benefits, too. It provides an uplifting yet sedative effect that offers relief from anxiety, depression, and pain.

Some people say that this ultra-potent strain was bred in a top-secret US research facility in Mississippi. Others say it was developed as part of the CIA’s mind-control program. Indeed, its exact origins are still unknown. But, one thing is for sure – you need this marijuana in your collection.


Although no one really knows the true genetic makeup of G13 Fem, there are strong signs of an Indica lineage in its growth pattern. The plant is not overly tall, with a sturdy structure that is necessary to bear the weight of heavy buds. As it happens, this strain is incredibly prolific, capable of producing bushels of shimmering, triangular nuggets with bright orange pistils. Given this propensity for massive yields, combined with high resistance to diseases, it is suitable for all levels of marijuana growers.

When planning to grow indoors, the Sea of Green (SOG) setup is the best option. To prevent the grow room’s temperature and relative humidity (RH) from rising too much, leave enough space between each plant, and give the leaves a little bit of trimming once in a while. This will allow proper airflow and enough light to penetrate the plant’s canopy.

On the other hand, this strain will appreciate a sunny and warm climate. Having a high tolerance for heat waves and other weather fluctuations, it is easy to grow in an open environment. As mentioned, the crops will be quite heavy, so it is best to install some support before the start of the flowering period.

Flowering Time

Indoors, with proper feeding and light, the flowering period of G13 Fem will take 10 to 12 weeks. Outdoors, the bounty of buds can be harvested from the end of October until mid-November.


When cultivating this strain in a controlled environment, the plant’s height will be around 90 cm (35 inches). Maintain the temperature between 20 to 29 degrees Celsius (68 to 84 degrees Fahrenheit), and keep an eye on the humidity and the soil’s moisture level to prevent any problems. If the conditions are optimized, a quality yield of 450 to 550 grams (15 to 19 ounces) of buds per square meter can be expected.


Nevertheless, the great outdoors is the best place for these plants to grow, as long as they are positioned in full sunlight in a balmy, Mediterranean-like climate. With plenty of room, they will become slightly taller than they would in an indoor setup, reaching 110 cm (39 inches). If they receive enough nutrients, each one can generate an astounding 1000 grams (35 ounces) of usable bud.

Medical Application

G13 is noted for having a potent 21% THC concentration, making it a popular recreational strain. Concurrently, this strain also possesses extensive medical value. It elevates the mood, giving the user a happy, positive vibe. This uplifting high is effective as an anxiolytic and antidepressant, stopping negative thoughts and worries. It could offer significant relief from depression, anxiety, bipolar tendencies, and stress. As an Indica-heavy strain, it also relaxes the body. The muscle-soothing effect is similar to analgesic and anti-inflammatory medications. These painkilling properties can alleviate chronic discomforts from illnesses such as arthritis, PMS, multiple sclerosis, and fibromyalgia. And finally, the strain’s sedating effect will kick in, providing solace for patients with insomnia and other sleep disorders. G13 has an insignificant CBD level of less than 1%. Therefore, it has no known benefits for epilepsy or other seizure disorders.

Adverse Reactions

Regardless of how beneficial G13 is, it is on a par with other marijuana strains in its common downsides. Consumption of even small amounts could cause dry mouth and dry eyes, but these are easily mitigated by drinking water and using eye drops. Moreover, it is always better to take it slow so that headaches, dizziness, and paranoia can be avoided. If you experience these conditions even with a low dose, you should think about switching to a milder variety of weed.


G13 is the perfect strain if you want to put your worries and cares to one side and simply revel in intense relaxation. From the very first toke, it will put a smile on your face as your mood lifts and the world seems to fall away. However, this euphoric high will not distort reality. On the contrary, it will keep your head clear, alert, and fully functional.

The same cannot be said about your body, though. After only a few minutes, your arms and legs will feel numb and heavy. Tasks requiring mobility and manual dexterity will become less and less appealing. You will experience profound laziness, but at the same time, your mind is still actively contemplating deep mysteries.

The next stage will be extreme hunger. You’d better hope that there is some food within arm’s reach, as you will lack the energy and motivation to get up from where you are sitting. At this point, you will realize that you are hopelessly couch-locked, so what else is there to do but to enjoy the ride?

The inevitable conclusion is a deep, uninterrupted slumber. When you wake up in the morning, you will feel refreshed, well-rested, and energized. Most importantly, there won’t be any hangover. For these reasons, G13 beats any sleeping pill.

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This mysterious strain is possibly a descendant of Afghani landraces because the aroma echoes the earthiness of Afghan Kush. In addition, there are wild berry tones and a mild skunkiness. The complex fragrance is a bit pungent but still very pleasant.


In contrast, the flavor profile is not as complicated. It is predominantly sweet, but there is a captivatingly refreshing pine note at the end. A hint of mint will linger on your tongue as you exhale.

Similar Strains

If you are looking for another Indica like G13, we recommend the famous Hindu Kush Fem, a pure Indica strain from the mountain ranges of Pakistan and Afghanistan that made its way to the western hemisphere in the 1960s. This varietal has been successfully cultivated globally and is loved for its relaxing and sedating properties. The buds have a lemon and pine aroma with a tinge of mouthwatering spice. Suitable for indoor or outdoor cultivation, each plant yields around 400 grams (14 ounces) of fragrant weed.

Gorilla Glue #4 Fem? This 2014 Cannabis Cup Winner is also an excellent choice. Nicknamed GG#4 or GG, this strain will give you a euphoric high, followed by a powerful sedating effect that will glue you to the couch. You are sure to enjoy its citrus and woody bouquet mixed with a dash of fuel. The bright green flowers are unbelievably sticky and covered with silver-white trichomes, making it an exciting crop to grow.

Humboldt Fem. Its 65% Indica and 35% Sativa genes combine to produce a mental stimulation that reduces the severity of stress while simultaneously relieving body aches. This compact plant has a fairly short flowering time, letting you harvest 400 to 600 grams (14 to 21 ounces) per square meter of grow area in just 65 to 70 days.

On the far side of the spectrum from G13 are the Sativas. For an energetic buzz, give Moby Dick Fema go. This tall and leggy plant is ideal for growers who have experience setting up a Screen of Green (SCROG) that encourages it to grow more bud sites, leading to a whale of a harvest. Boasting a gargantuan THC level of 27%, this leviathan will keep you alert and motivated for hours.

Bringing up the rear are the high-CBD strains. These were developed for purely medicinal purposes because they do not produce the high typically associated with marijuana. A great example is CBD Strawberry 1 to 15 Fem. It takes the fresh flavor of juicy, ripe strawberries and binds it with comprehensive therapeutic impacts. The THC level is below 1%, so this pot is not psychoactive. To be precise, it is more suitable to treat conditions like seizures, inflammatory bowel disease, and migraines.

All of these strains are available at i49. When you are ready to make a purchase, just let us know.

Nick Names

The creator of G13 will probably take the secret of its name to the grave. It is not known by any other moniker, but do take note that these are feminized seeds. This strain is also available in an autoflowering version. Although the auto produces the same effects and has a shorter life cycle, the yields are less. So, make sure to order the right seeds to avoid disappointment.

Final Thoughts

Buying seeds online can be tough. There are so many strains, and choosing one (or more) that suits your needs can be a bewildering exercise. But ultimately, you need a legitimate cannabis seed supplier you can trust. i49 is your best bet – with discreet packaging and handling, a germination guarantee, and thousands of five-star reviews. Learn from the pros and order authentic, premium-sourced products from our seed bank today.

With over 20 years of experience in the cannabis industry, we have the grow-how from the experts!

We deliver high-quality, fast-germinating seeds with impeccable and stabilized genetics swiftly and discreetly worldwide at a competitive price.

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We ship to the USA. We offer tracked shipping from $9.99 and FREE Shipping when you buy 2 products or more. Once your order is confirmed, you will receive a tracking ID by email. Your seeds will arrive in between 10-14 days. However, it can take up to 25-30 working days in some cases.

G13 Seeds

An in-depth review on the legendary G13 strain. Discover everything about G-13, such as its mythical history, growth traits, and where to find real Feminized G-13 seeds for sale online.

Have you ever been curious what a weed strain would look like if the government produced it?

Well, according to the legend — G13 is your one and only chance.

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Whether the stories are true or not, it’s clear that G13 is an indica powerhouse that’s primed to melt faces while relaxing your body into oblivion. From mouth-watering flavors and sky-high yields, it’s a no-brainer to add G-13 seeds to your garden.

Therefore, continue to read along while we provide an in-depth review for the G13 strain. Soon, you’ll learn how to grow G13 seeds, what type of cannabinoid profile G13 offers, and where to buy Feminized G13 seeds online.

G13 Seeds – Strain ID:

Type: Indica
Cannabinoids: 24% THC
Terpenes: Myrcene, Caryophyllene, Pinene
Effects: Euphoric, Relaxing, Social
Landrace Strain: Tangie x Lemon Skunk

Grow Difficulty: Moderate
Harvest: 8-11 Weeks / 11+ Weeks
Yield: Up to 750g/㎡ / Up to 2,000g/plant
Height: 5-6 feet/ 6+ feet
(*Indoor / Outdoor)

The Best G13 Feminized Seeds in 2022:

• 24% THC
• Harvest: 10-11 Weeks
• Yield: 550g/㎡

• Shipping Worldwide
• Germination Guarantee
• Credit Cards & Bitcoin Accepted

• 5 Seeds – $65
• 10 Seeds – $120
• 25 Seeds – $240

• Up to 24% THC
• Harvest: 11 Weeks
• Yield: 600g/㎡

• Shipping to US, EU, UK, AU, NZ
• Germination Guarantee
• Credit Cards & Bitcoin Accepted

• 5 Seeds – $89
• 10 Seeds – $109
• 20 Seeds – $189

About the G13 Strain


If there’s one strain on this planet that receives a gigantic question mark about its origins — it’s none other than G13.

From secret government facilities to hippies liberating weed plants, the stories only add to the legendary quality of G-13. Although there’s a lot of doubt regarding the popular myth of G13 — we’re not going to counter it.

The story of G13 involves three different parties: the government, Neville Schoenmakers, and an anonymous government employee.

Sometime in the 1970s, Dr. Carlton Turner headed a secret government facility in Mississippi growing cannabis plants for research. At some point, an anonymous staff member “liberated” a number of cannabis seeds from the lab.

According to the story, the seeds were individually labeled as G1, G2, G3, and so forth. As it happens, the seed that was labeled G13 showed exceptional qualities to the unknown cultivator.

Soon after, G13 hit the streets of Mississippi and became an instant favorite. Around this time, Neville Schoenmakers (owner of The Seed Bank of Holland) was given a clone called G13.

The person that gave Neville the legendary G13 strain was Sandy Weinstein, who was loosely affiliated with the unknown lab assistant. Once Neville began to work on G13 — it became clear that G13 was beyond top-shelf and full of incredible qualities.

Decades later, G13 is still rated as one of the best marijuana strains ever. Luckily, cultivators can find Feminized G13 seeds through online seed banks.

Lastly, let’s get to the bottom of G13’s genetics.

Overall, G13 is indica-dominant. Whether it’s a landrace or not is an excellent question. From its growth traits, one would assume that it matches an Afghani landrace originally described in the G13 story.

In any case — it’s your choice to believe the G Thirteen story or not. What’s not up for discussion is the top-shelf quality of G13’s enormous buds!

Growing G13 Seeds

Whether you have G13 seeds or not — this section is dedicated to teaching you everything worthwhile about the G13 strain.

From optimal growing conditions to strain effects, you’ll find enlightening information that’ll assist you while growing G13.

If your indoor or outdoor garden is prepared — let’s begin!

Grow Difficulty

The G13 strain is known as a moderately challenging variety to grow.

In other words, beginners will need to step up their game if they want to harvest massive nugs of G13 weed. As for seasoned growers, the G13 strain is relatively straightforward to cultivate.

The G13 plant can grow big, making it necessary to implement training techniques. Beginners that understand how to train weed plants will have the upper hand. Therefore, cultivators must do their homework prior to germinating G13 seeds.

Last but not least is G13’s monstrous appetite. Unlike other cannabis strains — G13 will consume an obscene amount of fertilizer!

Optimal Growing Conditions and Climate

If we are to believe the story of G13, then the original G13 seeds were initially accustomed to indoor conditions.

However, G13 can be grown indoors and outdoors. In any case, outdoor growers must provide a space that receives abundant sunshine, warmth, and low humidity.

Indoors growers must provide G13 plants with an optimized climate, such as 75-85F. Furthermore, indoor growers must maintain a humidity range between 50-70%.

Flowering Time

The G13 strain flowers in 8-11-weeks.

If you grow outdoors, G13 seeds must be planted after the last instance of frost. Overall, harvest season occurs during the end of September, middle of October, or beginning of November for most outdoor growers.

Due to the large range of flowering times, you may need to reconsider growing G13 seeds outside. If you live in a region where autumn weather brings freezing nighttime temperatures — G13 plants will struggle to survive.

If you grow Feminized G13 seeds indoors, you will likely harvest by the 8-9-week mark. However, the final harvest time is dependent on the phenotype and trichome ripeness.


The yield of the G13 strain is exactly what you’d expect from government weed.

If G13 really was grown by a bunch of genius mad scientists — it’s no wonder why it yields such massive buds!

When grown indoors, G13 may produce upwards of 750g/m2. That’s right — 750-grams of crystal-covered buds swaying across your grow room!

When growing outdoors, G13 plants are capable of yielding upwards of 2,000-grams per plant. If you’re wondering — 2,000-grams is nearly 5-pounds of weed.

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Remember, your skill as a grower and phenotype plays a large role in how much weed you’ll yield from G13. Therefore, take our maximum estimates with a grain of salt if this is your first grow.


G13 plants can grow tall.

When left to their own devices, G13 plants are capable of rocketing past 6′. Therefore, you’ll need to incorporate training and pruning methods if you don’t want a G13 jungle.

From SOG to LST, you’ll have the pick of the litter in terms of training methods. Most indoor growers keep the vegetative period to a maximum of 2.5-weeks to avoid massive plants.

If you grow G13 seeds outdoors, believe us when we say you’ll be looking up a lot as your G13 plants reach maturity.

Resistance to Pests and Diseases

The G13 strain is highly resistant to pests and diseases.

However, that does not give you a blank check when it comes to your crop’s health. Instead, always remain proactive and employ a sound IPM strategy to avoid irreparable damage to your G13 plants.

The best practices to ensure the health of your G-13 plants are:

  • Remove the lowest growth (lollipop)
  • Add one oscillating fan per meter squared
  • Adequately space each plant
  • Keep your garden clean
  • Always wear clean clothes into the grow room
  • Apply organic neem oil during the vegetative stage
  • Inspect the crop daily

G13 Strain Description and Properties

The Appearance of G-13 Weed

The appearance of G-13 weed can be described in one word — dank.

The buds of G13 are rather rough due to the high amount of secondary leaves throughout the calyx. Once trimmed, however, the bud shows off its gorgeously light green color and electric orange pistils.

The potency of G13 is obvious due to the massive amount of resin scattered across the buds. Overall, you won’t need a microscope to view the trichomes as each resin gland’s head is abnormally large.

Whether G13 was created in a lab or not — the buds speak for themselves!

The appearance of G-13 weed can be described in one word — dank.

Dominant Cannabinoids Found in G13 Buds

The dominant cannabinoid found in G-13 buds is none other than THC.

If you provide G-13 plants with enough nutrients and care during the season — you’ll find buds packed with 24% THC. In other words, G13 weed is super strong and not recommended for newbies.

From long-lasting effects to bone-crushing strength, we recommend that beginners take it easy with the G13 strain.

Dominant Terpenes Found in G13 Weed

G13 was created long before the introduction of dessert strains.

However, G13 contains an incredible mixture of terpenes that produce an aroma that’s reminiscent of fermenting blueberries, fresh pine needles, and sweet herbal undertones.

The flavor is similar to a cascade of pine sap, sweet berries, and a delightful twist of thyme. In other words, your taste buds will be relieved the moment you indulge in a massive hit of G13 weed.

The three primary terpenes found in G13 weed are myrcene, caryophyllene, and pinene. Myrcene and caryophyllene are known to produce sweet herbal and spice flavors that make G13 so enjoyable.

Lastly, the pinene within G13 is responsible for the amped-up levels of pine needles and fresh pine sap.

Effects of the G13 Strain

The scientists, according to the legend, must have been sorely disappointed to lose G-13 because it offers superb effects that are one-of-a-kind.

Once you indulge in this government-manufactured weed — get ready for liftoff.

G13’s effects are immediately noticeable, and the onset brings waves of sheer euphoria and mind-blowing bliss. As if the weight is taken off your shoulder, G13 levitates the body and eases every muscle into relaxation.

Additionally, G13 provides a sensation of well-being and an urge to socialize. Furthermore, reflective thoughts are widespread with G13.

Overall, G13 lifts your mind and body above the clouds but lays you down softly after 2-4-hours.

Medical Properties of the G13 Strain

The G13 strain was bred as if intended for medical marijuana patients.

The medicinal properties are basically tailor-made for most patients that suffer from medical issues, such as anxiety. Here’s a list of the major medical attributes that G13 can assist with:

If you need ounces upon ounces of medical-grade weed — look no further than Feminized G-13 seeds.

Negative Effects of G13 Weed

With so many positive attributes, it only makes sense that there are a few adverse effects while indulging in the G13 strain.

If you consume too much G Thirteen weed — you may experience:

Additionally, if you’re new to cannabis — take it easy with G-13. The THC content is incredibly high, making the G13 strain a one-hit-quit for most.

Therefore, always gauge your tolerance and adjust your intake accordingly for an enjoyable time with G13.

Pros/Cons of Growing G-13 Seeds

  • Moderately difficult to grow
  • Challenging to find real Feminized G13 seeds
  • Grows tall

The Best G13 Feminized Seeds in 2022:

• 24% THC
• Harvest: 10-11 Weeks
• Yield: 550g/㎡

• Shipping Worldwide
• Germination Guarantee
• Credit Cards & Bitcoin Accepted

• 5 Seeds – $65
• 10 Seeds – $120
• 25 Seeds – $240

• Up to 24% THC
• Harvest: 11 Weeks
• Yield: 600g/㎡

• Shipping to US, EU, UK, AU, NZ
• Germination Guarantee
• Credit Cards & Bitcoin Accepted

• 5 Seeds – $89
• 10 Seeds – $109
• 20 Seeds – $189

Marijuana Seed Index – A curated index of the world’s best cannabis seed strains. Each review contains vital information, such as cultivation tips, strain profiles, and where to buy the best cannabis seeds.