About G13
G13 is surrounded by more mythology than almost any other cannabis strain. The story: a clone of an exceptional plant from the US government's cannabis research program at the University of Mississippi was smuggled out by an employee in the 1980s. This clone — labeled 'Government Indica #13' — found its way into the hands of breeders and became the foundation of several legendary hybrids. Whether or not the full story is true, the strain that emerged under the G13 name was undeniably potent — a heavy, sedative indica with exceptional resin production and a distinct sweet-pine-ammonia aroma. G13 was preserved by the seed collector known as 'Chemdog' (of Chemdawg fame), who obtained the cut in the mid-1990s and crossed it into several important hybrids.
Flavor Profile
History
The G13 story begins with the US government's cannabis research program at the University of Mississippi, which has grown cannabis for research purposes since the 1960s. According to legend, a janitor or employee smuggled out a clone of the #13 plant (the best in their greenhouse) in the 1980s. The clone made its way to the West Coast through a series of underground connections. Chemdog (of Chemdawg fame) received the G13 cut in the mid-90s and bred it into several notable lines. G13 was used by Sensi Seeds and other Dutch breeders to create G13 Haze (one of the most famous Cannabis Cup winners of the 1990s). The true story remains unverifiable, which only adds to G13's mystique — but the genetics themselves are undeniable.
Notable breeders: US Government (origin), Chemdog (preservation), Sensi Seeds
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Live Amsterdam Pricing
See real-time prices, availability, and shop locations for G13 at Amsterdam coffeeshops — updated daily.
View Live Menus →Genetic Background
Unknown. Believed to be a highly selected Afghani or Northern Lights phenotype from the US government cannabis supply
Phenotypes & Cultivars
G13 is available in the following phenotypes and cultivars:
Terpene Profile
G13 is dominated by Myrcene, Limonene, Caryophyllene. These compounds shape the strain's aroma, flavor, and reported effects.
Known Offspring
Strains that descend from G13:
Frequently Asked Questions
Is G13 indica or sativa?
G13 is an indica cannabis strain.
What are the genetics of G13?
G13 has a genetic lineage of Mystery government indica — possibly Afghani or Northern Lights (unknown exact lineage). Unknown. Believed to be a highly selected Afghani or Northern Lights phenotype from the US government cannabis supply
What is the lineage of G13?
G13 descends from Mystery government indica — possibly Afghani or Northern Lights (unknown exact lineage). Unknown. Believed to be a highly selected Afghani or Northern Lights phenotype from the US government cannabis supply
What is the THC content of G13?
G13 typically tests at 20-25% THC.
What does G13 smell and taste like?
G13 has a Sweet pine, ammonia, earth, pepper, spice aroma profile, with flavors described as Pine, earth, sweet, chemical spice.
What are the effects of G13?
Users report Extremely heavy body stone, powerful sedation, couch-lock, sleep-inducing, euphoric onset. As an indica-dominant strain, it is known for relaxing body effects.
What are the phenotypes of G13?
G13 is known in several phenotypes and cultivars, including G13, G13 #1. Each phenotype expresses the same genetics slightly differently — varying in aroma, bud color, growth habit, and effects.
What is the history of G13?
The G13 story begins with the US government's cannabis research program at the University of Mississippi, which has grown cannabis for research purposes since the 1960s. According to legend, a janitor or employee smuggled out a clone of the #13 plant (the best in their greenhouse) in the 1980s. The clone made its way to the West Coast through a series of underground connections. Chemdog (of Chemdawg fame) received the G13 cut in the mid-90s and bred it into several notable lines. G13 was used by Sensi Seeds and other Dutch breeders to create G13 Haze (one of the most famous Cannabis Cup winners of the 1990s). The true story remains unverifiable, which only adds to G13's mystique — but the genetics themselves are undeniable.
How long does G13 take to flower?
G13 has a flowering time of approximately 8-10 weeks. Plants grow to a medium height.
What is the yield of G13?
G13 produces a Moderate to high yield. Flowering takes approximately 8-10 weeks.
Medical Applications
G13 is commonly associated with: