10
Modern
TO#hybrid
The OG #18
Top flavors
earthyspicycitrus
Terpenes
CalmingEnergizing
The OG #18 effects are mostly calming.
The OG #18
The OG #18 is a modern hybrid strain with an undocumented lineage. Cultivators categorize this strain as a plant of moderate growing difficulty that thrives in both indoor and outdoor environments. With a flowering period of 60 days, The OG #18 is known for producing high yields. According to lore, its reputation is built upon its consistent output and its role as a foundational genetic tool within the community.
The sensory profile of The OG #18 is defined by a primary presence of myrcene, followed by secondary caryophyllene and tertiary limonene. This specific terpene hierarchy informs the aromatic and flavor characteristics of the plant. The combination of these chemical constituents provides a distinct profile that distinguishes this modern hybrid from other offerings within the broader genetic landscape.
As a THC-dominant cultivar, The OG #18 produces effects characterized as relaxed, happy, and uplifted. These properties make the strain a functional choice for users seeking relief from stress, pain, or difficulties with sleep. The genetic legacy of this strain is significant, as it has served as a parent to numerous notable offspring, including 18 Coffins, Berserk OG #18 bx, BT7, Cannalope Kush, Cherry 18, Cookies & Monsters, Dayton Hammer, Fire 18, Gas Candy, Holy Grail OG, Lemon 18, and Lemon Elixir.
Terpene Profile
Synergies (+) and conflicts (−) are relative to each other within this profile.
myrcene ~60%caryophyllene ~28%limonene ~12%
| Terpene | Share | Character | Likely role |
|---|---|---|---|
| myrcene | ~60% | earthy | relaxing · solo |
| caryophyllene | ~28% | spicy | relaxing · social |
| limonene | ~12% | citrus | social · creative |
Research notes below describe isolated terpene mechanisms and early findings. They do not guarantee effects from this strain and are not medical advice.
Russo 2011: naloxone-sensitive analgesia, potentiates barbiturate sleep; dominant sedating terpenoid; blocks hepatic carcinogenesis by aflatoxin.
~28%
spicy
●●○○
Russo 2011: only terpene that is a selective full CB2 agonist (100 nM); Gertsch et al. 2008: acts as dietary cannabinoid; unique anti-inflammatory and gastric cytoprotective properties.
Russo 2011: increases serotonin in prefrontal cortex + dopamine in hippocampus via 5-HT1A; Johns Hopkins 2024: significantly reduced anxiety vs THC alone.
Effects
Reported effects — derived from terpene chemistry and cannabinoid profile.
◎
relaxed
eveningPrimary endpoint of myrcene+linalool sedating combinations; GABA modulation is the dominant mechanistic driver.
◉
happy
anytime△
uplifted
morningLimonene anxiolytic/antidepressant via serotonin elevation in prefrontal cortex (Russo 2011); mood improvement without full euphoria; key for balanced-1-1 profiles.
Genetic Profile
Balanced Hybrid
■ Indica 50%■ Sativa 50%
Equal indica and sativa genetics. Balanced body and mind effects.
THC-Dominant
High THC, trace CBD. Psychoactive. Full CB1 agonism — euphoria, appetite, analgesia.
Genealogy
Parent data not yet recorded for The OG #18.
Composite Traits
Dispensary Locator
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What would The OG #18 × ? produce?
Predict the terpene profile, effects, and growing traits of a cross. Our gene weaver engine votes on dominant traits from both parents.
Build a cross with The OG #18 →Similar strains
Same primary terpene with overlapping effects.
Frequently Asked Questions
Is The OG #18 indica or sativa?
The OG #18 is modeled here as a balanced hybrid (equal indica and sativa genetics).
What terpene is dominant in The OG #18?
Myrcene is shown as the dominant terpene at approximately ~60%. Caryophyllene follows as the secondary terpene.
Is The OG #18 good for daytime use?
The OG #18 is versatile and works across different times of day depending on dose and individual response.
How accurate is this data?
See the "Data confidence" card in the sidebar. Terpene profiles and effects are chemistry-informed estimates — individual responses depend on phenotype, source, and personal chemistry.