GG4 (Gorilla Glue #4)
A high-THC American hybrid famous for its resin-coated flowers, accidental origin story, and a trademark fight that forced a rename.
GG4 is a legitimately potent, resin-heavy strain with a verifiable origin story — rare in cannabis. It earned its reputation in 2014 Cannabis Cup wins, not just hype. But everything beyond 'it's strong and sticky' gets murky fast: claimed THC numbers are often inflated by lab shopping, the 'couch-lock indica' framing is marketing shorthand, and the dozens of 'GG4' clones circulating today vary wildly. The Gorilla Glue trademark lawsuit is why you'll see it sold as 'Original Glue' or 'GG4.'
Overview
GG4 — originally Gorilla Glue #4, now legally sold as 'Original Glue' or 'GG4' — is a hybrid bred by Joesy Whales and Lone Watty of GG Strains in the United States. It rose to prominence after winning the 2014 High Times Cannabis Cup (Los Angeles) and the 2014 World Cannabis Cup (Jamaica) in hybrid categories [1][2]. The strain's calling card is dense, extremely resinous flowers — growers report trim scissors gumming up with trichome resin, which is the source of the 'glue' name. It is one of the most widely cloned American hybrids of the 2010s and a parent to dozens of newer crosses.
Lineage and origin story
GG Strains describes GG4 as an accidental cross: a Chem Sis plant that hermied pollinated nearby Sour Dubb and Chocolate Diesel plants. From that batch, the breeders selected a phenotype called #4 [1][3]. So the documented parentage is Chem Sis × Sour Dubb × Chocolate Diesel [evidence:practitioner].
A few caveats worth flagging:
- The lineage is reported by the breeders themselves and is not independently verifiable through genetic testing in the public record Weak / limited.
- 'Chem Sis' and 'Sour Dubb' are themselves loosely defined cuts with multiple versions in circulation.
- Many seed-form 'GG4' products are S1s or backcrosses, not the original clone, and can express differently Anecdote.
In 2017, the adhesives company Gorilla Glue Inc. sued GG Strains for trademark infringement. The case settled, and GG Strains agreed to drop 'Gorilla' branding by 2018 — hence 'Original Glue' and 'GG4' on shelves today [4].
Chemistry: cannabinoids and terpenes
GG4 is a THC-dominant chemotype with negligible CBD. Reported total THC in commercial flower typically falls in the 18–25% range, though dispensary labels sometimes claim higher figures — a known issue across the U.S. market driven by lab-to-lab variance and 'lab shopping' [5][6] Strong evidence.
Terpene profiles published by commercial labs and aggregated by databases commonly show β-caryophyllene as the dominant terpene, with notable limonene, humulene, and myrcene [7] Weak / limited. Profile varies substantially by grower, cure, and pheno, so any single 'GG4 terpene profile' should be read as an average rather than a fixed identity.
A note on folklore: the popular claim that 'myrcene above 0.5% makes a strain indica/couch-lock' has no peer-reviewed support and should be treated as marketing folklore, not chemistry No data.
Reported effects
There are no strain-specific clinical trials on GG4. Everything below is user-reported, drawn from review aggregators and journalism, not controlled research Anecdote.
Commonly reported effects include heavy physical relaxation, sedation at higher doses, euphoria, and a 'gluing to the couch' feeling that inspired the name [2][8]. Users frequently report dry mouth and dry eyes, which are well-established acute effects of THC generally and not strain-specific Strong evidence.
The indica-vs-sativa-vs-hybrid framework is a poor predictor of how any given person will respond to any given chemovar. Peer-reviewed work has repeatedly shown that 'indica' and 'sativa' labels do not align with chemical profiles in a consistent way [9] Strong evidence. Treat 'GG4 will lock you to the couch' as a useful rough expectation, not a guarantee.
Cultivation basics
GG4 is grown almost exclusively from clone in commercial settings because the original is a clone-only cut; seed versions (S1, BX) are sold by various breeders but vary in expression.
General grower-reported parameters Anecdote:
- Flowering time: 8–9 weeks indoor; outdoor harvest mid-October in the Northern Hemisphere.
- Yield: Moderate to high indoors, often cited around 500–600 g/m² under good conditions.
- Structure: Medium-tall, responds well to topping, SCROG, and light defoliation; can stretch significantly in early flower.
- Resin production: Exceptionally high — a defining trait and the reason it's a popular extraction strain.
- Common issues: Susceptible to bud rot in humid environments due to dense colas; appreciates good airflow and moderate feeding.
Difficulty is generally rated moderate: forgiving for an experienced grower, but the dense bud structure punishes poor environmental control.
Marketing vs. reality
What's real about GG4:
- A verifiable, documented breeder origin (rare in cannabis) [1].
- Genuinely high resin output and high THC by any reasonable measurement Strong evidence.
- Competition wins that predate its viral popularity, suggesting the reputation wasn't manufactured [2].
What's marketing:
- THC percentages above ~28% on GG4 labels should be viewed skeptically given documented industry-wide inflation [5][6].
- 'Pure indica couch-lock' framing — GG4 is a hybrid, and the indica/sativa label doesn't reliably predict effects anyway [9].
- 'The original GG4' claims on seed packs: the true original is a clone. Seeds are derivatives.
- Any specific medical claim ('GG4 treats X') — no strain-level clinical evidence exists No data.
Sources
- Practitioner GG Strains LLC. Official strain history and breeder statements. GGStrains.com. ↗
- Reported High Times. '2014 Cannabis Cup Los Angeles Winners' and '2014 World Cannabis Cup Jamaica Winners.' High Times Magazine, 2014. ↗
- Reported Leafly Staff. 'Gorilla Glue #4: The Origin Story of a Modern Classic.' Leafly, 2017. ↗
- Reported Borchardt, Debra. 'Gorilla Glue Cannabis Settles Trademark Suit With Gorilla Glue Company.' Forbes, October 4, 2017. ↗
- Peer-reviewed Jikomes, N., & Zoorob, M. (2018). The Cannabinoid Content of Legal Cannabis in Washington State Varies Systematically Across Testing Facilities and Popular Consumer Products. Scientific Reports, 8, 4519.
- Reported Schroyer, J. 'THC inflation: How cannabis potency testing got broken.' MJBizDaily, 2022. ↗
- 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.
- Reported Weedmaps Learn. 'Gorilla Glue (GG4) Strain Information.' Weedmaps Editorial. ↗
- 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.
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