EJhybrid-sativa
Hybrid-SativaModernTHC-Dominantafternoon

Emerald Jack

Top flavors

spicyearthycitrus
CalmingEnergizing

Emerald Jack has balanced effects.

Emerald Jack is a modern hybrid-sativa strain with undocumented lineage. It has earned a reputation for reliability in cultivation, fitting for both indoor and outdoor environments. Growers should expect a moderate difficulty level during its 67-day flowering cycle, which typically results in a high yield. This strain has also been utilized in further hybridization, serving as a parent in the development of the Emerald Jack x SCBDx variety.

The terpene profile of Emerald Jack is notably complex, anchored by a dominant concentration of caryophyllene followed by myrcene and limonene. The sensory experience further integrates pinene, humulene, and ocimene, with additional contributions from nerolidol, linalool, beta-pinene, guaiol, p-cymene, bisabolol, eucalyptol, and camphene, concluding with trace caryophyllene-oxide. This diverse chemical architecture defines the specific aromatic and flavor nuances detected in the harvested flower.

As a THC-dominant cultivar, this strain is recognized for its ability to produce creative, uplifted, and euphoric effects. These characteristics make it a functional choice for those seeking to enhance periods of creativity or maintain focus during social interactions. By balancing these primary effects with its distinct terpene profile, Emerald Jack remains a consistent option for users prioritizing productivity and mood elevation.

Terpene Profile

Synergies (+) and conflicts (−) are relative to each other within this profile.

caryophyllene ~60%myrcene ~28%limonene ~12%
TerpeneShare
caryophyllene~60%
myrcene~28%
limonene~12%

Research notes below describe isolated terpene mechanisms and early findings. They do not guarantee effects from this strain and are not medical advice.

~60%

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.

~28%

earthy

●●●○

Russo 2011: naloxone-sensitive analgesia, potentiates barbiturate sleep; dominant sedating terpenoid; blocks hepatic carcinogenesis by aflatoxin.

~12%

citrus

●●○○

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.

Genetic Profile

Sativa-dominant

■ Indica 30%■ Sativa 70%

Primarily sativa with indica grounding. Uplifting with body relaxation.

THC-Dominant

High THC, trace CBD. Psychoactive. Full CB1 agonism — euphoria, appetite, analgesia.

Genealogy

Parentage, ancestry, and genetic relatives of Emerald Jack.

Composite Traits

Use caution if

daytime-productivitymorning-useevening-wind-down

Where to buy Emerald Jack

No verified dispensaries on file — find it on Leafly.

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What would Emerald Jack × ? 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 Emerald Jack

Similar strains

Same primary terpene with overlapping effects.

Frequently Asked Questions

Is Emerald Jack indica or sativa?

Emerald Jack is modeled here as a sativa-dominant (primarily sativa with indica grounding).

What terpene is dominant in Emerald Jack?

Caryophyllene is shown as the dominant terpene at approximately ~60%. Myrcene follows as the secondary terpene.

Is Emerald Jack good for daytime use?

Emerald Jack 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.