OG Kush
Legendary high-THC hybrid central to modern cannabis genetics and West Coast culture.
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OG Kush is real and historically important, but it's also a brand. No single 'true' OG exists—it's a family of related clones, and anything sold under the name might be something else entirely. Its heavy, euphoric effects come from high THC and a recognizable terpene blend, not from any magical myrcene threshold or indica genetics. Grow it from clone if you can.
Overview
OG Kush emerged in the United States in the early-to-mid 1990s and became the defining cultivar of West Coast cannabis culture in the 2000s [1]. It is the parent or grandparent of an enormous share of modern North American hybrids, including many 'Cookies' family strains, Sour Diesel crosses, and Headband [1].
Despite its fame, there is no single authoritative 'OG Kush' genome. Multiple clones circulate under the name—including 'Tahoe OG,' 'SFV OG,' 'Larry OG,' and various 'Ghost OG' cuts—and genetic studies have shown that strains sharing a name often differ substantially at the DNA level [2]. When someone says 'OG Kush,' they could mean any of several related but distinct plants.
Chemistry
Cannabinoids. OG Kush samples are consistently high-THC and low-CBD Strong evidence[3]. Commercial flower typically tests between 19% and 25% THC, with negligible CBD (<0.3%) [3]. There is nothing chemically unusual about its cannabinoid profile—it is a standard Type I (THC-dominant) chemotype.
Terpenes. The 'OG' aroma—often described as fuel, pine, lemon rind, and skunk—comes primarily from a blend of β-caryophyllene, myrcene, limonene, and α- and β-pinene, sometimes with notable linalool [4]. Different OG cuts emphasize different terpenes; lab data from US testing facilities shows substantial within-name variation [2][3].
The popular claim that OG Kush's effects are explained by 'high myrcene above 0.5%' is folklore No data. The 0.5% myrcene threshold has no basis in published pharmacology. For a detailed explanation, see The Myrcene 0.5% Threshold.
Reported Effects
Users typically describe OG Kush as heavy, euphoric, and physically relaxing, with strong appetite stimulation and a tendency toward couch-lock at higher doses Anecdote. It is widely used recreationally and, in self-report surveys, for stress, pain, and insomnia [6].
Important caveat: There are no controlled clinical trials of OG Kush specifically, or of any named cannabis cultivar. Reported 'strain effects' come from user surveys (e.g., Leafly reviews, the Releaf App dataset) and are heavily confounded by dose, route, tolerance, set, setting, and the fact that 'OG Kush' refers to many different plants [2][6]. See The Indica/Sativa Myth for why the common classification framework does not reliably predict subjective effects Disputed[7].
In other words: people generally find it sedating and euphoric, but that's the consensus of self-reports, not clinical evidence.
Lineage (Disputed)
OG Kush's parentage is genuinely unknown and contested Disputed. The most commonly repeated story, attributed to grower Matt 'Bubba' Berger and associates in the 1990s, holds that OG Kush descended from a Chemdawg plant crossed with Hindu Kush, possibly with Lemon Thai involved [1]. Other accounts trace it to a bag-seed plant grown in Florida and brought west to Los Angeles. The meaning of 'OG' itself has been variously claimed to mean 'Original Gangster,' 'Ocean Grown,' or simply 'Original'—none of these is definitively documented in primary sources.
Genetic analyses by Phylos Bioscience and academic groups place OG Kush clones in a tight cluster with Chemdawg-family plants, which is consistent with—but does not prove—the Chemdawg-derived origin story [2].
Anyone who tells you they know exactly where OG Kush came from is overstating the evidence.
Cultivation Basics
OG Kush is generally grown from clone rather than seed, because seed-grown 'OG Kush' lines vary widely in phenotype. The plant has a reputation for being finicky:
- Flowering time: 8–9 weeks indoors; outdoor harvest in early-to-mid October at northern latitudes Anecdote.
- Structure: Medium height, stretchy in early flower, with long internodes and dense, gas-smelling colas Anecdote.
- Yield: Moderate. Skilled indoor growers report ~400–500 g/m²; it is not a high-yield strain by modern standards Anecdote.
- Sensitivities: Susceptible to powdery mildew, sensitive to nutrient burn, and prefers lower EC than many hybrids. Benefits from staking or trellising Anecdote.
Most cultivation guidance is grower lore rather than peer-reviewed agronomy; treat specific feed schedules and 'OG-only' techniques as starting points, not gospel.
Marketing vs. Reality
OG Kush is a real, distinctive, historically important cultivar. It is also a brand—and at this point, the brand is bigger than any single plant.
- Reality: A family of related clones with a recognizable fuel-citrus terpene signature and high THC, central to the genetic history of US cannabis [1][2].
- Marketing: Anything labeled 'OG' on a dispensary shelf. A genetic survey found that strains sold under the same name frequently were not closely related, and strains sold under different names sometimes were nearly identical [2].
- Folklore to ignore: That OG Kush is uniquely 'medical,' that its effects are predicted by indica genetics, that a specific myrcene percentage explains its couch-lock, or that there is one 'true' OG cut. None of these claims is supported by evidence No data.
If you like OG Kush, like it for what it is: a punchy, gassy, high-THC hybrid with a great backstory and a messy family tree.
Frequently Asked Questions
Is OG Kush indica or sativa? OG Kush is typically classified as a hybrid, though different cuts may lean more Indica or Sativa. See The Indica/Sativa Myth for why this classification doesn't reliably predict effects Disputed[7].
How much THC does OG Kush have? Commercial samples typically test between 19% and 25% THC, with negligible CBD (<0.3%) Strong evidence[3]. Individual plants vary, especially when grown from seed rather than clone.
How long does OG Kush take to flower? Indoor flowering is typically 8–9 weeks Anecdote. Outdoor harvest in temperate climates is usually early-to-mid October. Specific timing depends on light and temperature.
Who bred OG Kush? The true breeder is unknown. The most common origin story credits Matt 'Bubba' Berger and associates with developing it from a Chemdawg × Hindu Kush cross in the early-to-mid 1990s [1], but other lineages have been claimed and cannot be ruled out Disputed.
Sources
- Book Clarke, R. C., & Merlin, M. D. (2013). Cannabis: Evolution and Ethnobotany. University of California Press.
- Peer-reviewed Sawler, J., Stout, J. M., Gardner, K. M., Hudson, D., Vidmar, J., Butler, L., Page, J. E., & Myles, S. (2015). The Genetic Structure of Marijuana and Hemp. PLOS ONE, 10(8), e0133292.
- Peer-reviewed Smith, C. J., Vergara, D., Keegan, B., & Jikomes, N. (2022). The phytochemical diversity of commercial Cannabis in the United States. PLOS ONE, 17(5), e0267498.
- Peer-reviewed Hazekamp, A., Tejkalová, K., & Papadimitriou, S. (2016). Cannabis: From Cultivar to Chemovar II — A Metabolomics Approach to Cannabis Classification. Cannabis and Cannabinoid Research, 1(1), 202–215.
- Peer-reviewed Russo, E. B. (2011). Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. British Journal of Pharmacology, 163(7), 1344–1364.
- Peer-reviewed Stith, S. S., Li, X., Diviant, J. P., Brockelman, F. C., Keeling, K. S., Hall, B., & Vigil, J. M. (2020). The effectiveness of common cannabis products for treatment of nausea. Journal of Clinical Gastroenterology, 54(4), 351–356.
- Peer-reviewed Watts, S., McElroy, M., Migicovsky, Z., Maassen, H., van Velzen, R., & Myles, S. (2021). Cannabis labelling is associated with genetic variation in terpene synthase genes. Nature Plants, 7, 1330–1334.
How this page was made
Generation history
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