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G13 Strain: Legendary Indica-Dominant Hybrid Overview

Are you a cannabis enthusiast looking for a strain that packs a punch? Look no further than the legendary G13 strain. This potent indica-dominant hybrid has been shrouded in mystery and intrigue for decades but its reputation for delivering a powerful high is undeniable.

In this article well dive into the origins effects and growing tips for the G13 strain.

G13 Chart
Domination Chart - G13
Chris Dorcey
Inheal Editor
Post date
May 17, 2024
Time to read
4 mins 32 secs
G13 Cannabis Strain

Key Takeaways

  • G13 is a legendary indica-dominant strain known for its potent effects
  • Its origins are unclear but it was likely bred by underground growers in the 70s or 80s
  • G13 delivers a strong body high with deep relaxation and some cerebral stimulation
  • It has a pungent earthy aroma and flavor with hints of pine and spice
  • Growing G13 can be challenging and is best suited for experienced growers
  • The effects of G13 are long-lasting and can be overwhelming for newer users
  • If you try G13 start slow and make sure youre in a comfortable setting

Mysterious Origins

g13 cannabis strain closeup

The true origins of G13 are a bit hazy but the most common story goes that it was developed by the US government as part of a secret research project in the 1970s. Supposedly the 13th strain out of the experiments was deemed the most potent and thus G13 was born.

While this makes for a great story theres no actual evidence to support it. More likely G13 was bred by underground cannabis growers and the government story was fabricated to add to its mystique. Regardless of its true beginnings G13 has become a legendary strain in the cannabis community.


G13 is known for delivering a hard-hitting body high that can leave even experienced smokers couch-locked. Its effects are predominantly physical with a deep relaxation that spreads throughout the body. Many users report a heavy sensation in the limbs and a strong desire to sit or lie down.

Despite its sedating effects G13 also provides some cerebral stimulation. It can alter perception and cause visual distortions especially in higher doses. Some users also report increased creativity and euphoria.

The effects of G13 can be long-lasting with the peak high lasting for several hours. Its not uncommon to feel lingering effects even the next day particularly for less experienced users. Because of its potency G13 is best reserved for evening or nighttime use when you dont have other responsibilities.

Aroma and Flavor

G13 has a strong pungent aroma that is earthy and musky with hints of pine. Its flavor is similarly earthy with a sweet and slightly spicy undertone. The smoke can be harsh and expand in the lungs so newer users may experience coughing.


If youre considering growing your own G13 there are a few things to keep in mind. This strain can be challenging to grow and is not recommended for novice growers. It has a longer than average flowering time of 10-12 weeks and can be susceptible to mold and pests.

G13 plants tend to be short and bushy with broad leaves. They do best in a warm dry climate and prefer soil as a growing medium. Pruning and training techniques can help increase yields and control growth.

When grown successfully G13 can produce high yields of dense resinous buds. The plants have a high THC content often measuring over 20%. CBD levels are typically low around 0.1%.

Is it Right for You?

g13 cannabis effects benefits

G13 is a potent strain that is not for everyone. Its strong sedating effects can be overwhelming for newer users or those with low tolerance. It may also not be the best choice if you are prone to anxiety or paranoia as the cerebral effects can be intense.

However if youre an experienced user looking for a powerful relaxing high G13 is definitely worth trying. 

As with any cannabis strain its important to start slow and listen to your body. Take a small hit and wait at least 15 minutes before consuming more. Have some snacks and water on hand and make sure youre in a comfortable setting.

Final thoughts

G13 is a strain that has earned its place in cannabis legend. With its mysterious origins and reputation for potency its a strain that many enthusiasts want to try at least once. However its not for everyone. The strong sedating effects and long duration can be too much for some users.

If you do decide to try G13 approach it with caution. Start with a small dose and dont plan any activities that require alertness or coordination. Use it in a comfortable setting and have food and water available.

When enjoyed responsibly G13 can deliver a unique and powerful cannabis experience. Its a strain that has stood the test of time and will likely continue to be sought after by connoisseurs for years to come.

Frequently Asked Questions

While the origins of G13 are unclear it is a very real strain that has been around since at least the 1980s. Its genetics have been used to create numerous other strains.

G13 is a high THC strain often measuring over 20%. However exact THC levels can vary depending on growing conditions and phenotype.

The exact parent strains of G13 are unknown. Some speculate it may be a descendant of Afghan or Neville’s A5 Haze but this has not been confirmed.

The effects of G13 can last for several hours with the peak high lasting 2-3 hours. Some users may feel lingering effects for 24 hours or more after use.


The statements on this blog are not intended to diagnose, cure, treat or prevent any disease. FDA has not evaluated statements contained within the blog. Information on this website or in any materials or communications from Inheal is for educational/informational purposes only and is not a substitute for medical advice, diagnosis, or treatment. Please consult your healthcare provider before making any healthcare decisions, correct dosage or for guidance about a specific medical condition.

by Chris Dorcey

A connoisseur of cannabis creativity and true contemplation with more than 20 years of experience, Chris extracts deep thoughts from getting lightly baked and shares his wandering mind. He blends cuisine and cannabis culture into nutritious, delicious recipes and insights for other hemp lovers.

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