Emerald Jack
Hybrid
Lineage not recorded
No alternate names recorded
- Sourced
- Cannabinoids: Sourced
- Effects: Sourced
- Review date not recorded
Review date not recorded

At a glance
- Type
- Hybrid
- High
- Head and Body
- Genetics
- Not recorded
- Flowering
- 48–55 d
- THC Range
- 16% – 24%
- CBD Range
- 0.27% – 1.22%
- Dominant Terpenes
- Caryophyllene, Limonene
Effect Profile
Reported by the community and curated from multiple sources.
- Reported
- Reported Negatives
Frequency not recorded
Creative
Reported
Energetic
Reported
Euphoric
Reported
Focused
Reported
Happy
Reported
- Dizzy
- Dry Eyes
- Dry Mouth
- The Scaries
Plant Profile
Cannabinoid Profile (As Reported)
View methodology- THC16% – 24%
- CBD0.27% – 1.22%
- CBC0.4% – 0.7%
- CBG1%
- CBN0.09%+
- THCV0.48% – 0.84%
Ranges reflect legacy lab reports and aggregated user data, as recorded.
Dominant Terpenes (Top 5)
View all terpenes
CaryophyllenePeppery, SpicyReported- LimoneneReported
User-Reported Medical Usage New
Community- and source-reported, not medical advice.
5 reported uses
- 1DepressionReported as a reason for use.—
- 2PainReported as a reason for use.—
- 3AnxietyReported as a reason for use.—
- 4NauseaReported as a reason for use.—
- 5ADHD/ADDReported as a reason for use.—
Listed by how widely each use is reported across strains. The share of reporters is not recorded for these reports. Not a measure of whether it worked.
View all reported usesGenetics & Origin
Origin
Emerald Jack is a cross of Jack Herer and Emerald OG, from Emerald Triangle Seeds, consistent across sources though our records carry no formal lineage entry. Jack Herer lends the name, the herbal-citrus flavor and the clear head; Emerald OG the body weight and the resin. It has one descendant on file, and the Jack Herer connection is the main reason to choose it.
Bred from Emerald Jack (1)
The Grow
Best Results
Indoor and Outdoor
Preferred Climate
Warm
Grow Difficulty
- Beginner
- Easy
- Average
- Difficult
- Expert
Average
Outdoor
- Harvest
- October
- Height
- Average
- Yield
- Moderate
Indoor
- Harvest
- 8–10 wk
- Height
- Average
- Yield
- Moderate
- Flowering
- 48–55 d
- Resistance
- Standard
The difficulty to grow Emerald Jack is known for being average. For growers cultivating indoors, expect average height with a moderate yield with in about 8–10 wk. Outdoors, harvest around October.
Cultivation Notes
Emerald Jack flowers fast, in as little as six weeks, on a large plant that often tops 78 inches. Other grow details, including yield and climate, are not documented in our data. The height makes it an outdoor or tall-space plant despite the quick finish. Grower and breeder figures.
When To Try It
Best:
Afternoon
Occasions:
- before creating
About
Emerald Jack is a Jack Herer descendant bred in the heart of Humboldt County.
Emerald Triangle Seeds crossed Jack Herer with the heavier Emerald OG, keeping the herbal-citrus flavor and the clear head of the Jack Herer side while adding a little body weight. Our data points to a creative, focused daytime strain.
What to Expect
Emerald Jack is built for doing things. Leafly's breakdown leads with happy at 63 percent, then euphoric, creative, energetic and focused all clustered around 47 to 50, from a solid number of reviews, and the associated words put creativity well out front. It suits a project, a work session, anything that needs sustained attention.
At 18 percent, dry mouth leads the negatives, with dizziness close behind it and dry eyes or a paranoid note further back. The Emerald OG side can pull toward the couch at a heavy dose, so keep it moderate for daytime use.
Flavor and Aroma
Emerald Jack is orange and pine over a dry, earthy base, with a skunky sharpness underneath. It leans herbal rather than sweet, the Jack Herer influence showing clearly. The flavor is mostly earthy pine with the citrus pulled back from where the smell suggests.
Terpenes Explained
Emerald Jack has no measured terpene panel in our data, only Caryophyllene and Limonene as recurring names without amounts. The Jack Herer line is known for a distinctive pine-and-spice terpene mix, but there are no numbers here to confirm this cut carries it.
Smell the jar for that herbal sharpness. A batch that reads flat or generic is not showing the Jack Herer character.
Cannabinoids and Potency
Emerald Jack THC is reported from about 20 to 24 percent, called relatively mild for its parentage but a firmly strong level by any normal measure. CBD is a trace. The near-zero figures in our wider range are data noise.
Expect a strong strain in the low twenties and dose it for the creative lift, not the ceiling.
Awards & Recognition
Each award is bound to the exact entry that won it. Nothing is inherited by the strain as a whole.
2019 Errl Cup — entry recorded as “Emerald Jack”
Source: not recorded on this entry
0 verified recognitions. 1 unresolved entry shown but excluded from the count.
Competition historyBusinesses familiar with Emerald Jack 0
View allNo business is linked to Emerald Jack yet. Businesses record what they carry through their offerings, and none names this strain.
Listings are independently presented and scoped by location, freshness and verification. Nothing here is a sales offer.
How we verify businessesExperience Evidence & Sources
Where this record’s observations come from, and what each source covers.
Community strain database aggregation (Labster/Blaster/Grower/Writer)
Aggregated from third-party community strain databases — 3 source records.
Ascendancy Drupal preserved public extract
Carried over from the preserved Ascendancy archive — 1 source record.
Source summaries only. Evidence bodies are not published on this page.
Methodology and sourcesReader Reviews 0
Reader experiences, not verified data. Nothing here feeds the effect percentages above.
No reader reviews yet. Public reviews are not open; experiences you log stay private in your Passport.
Recipes & Edibles
No recipe is linked to Emerald Jack yet.
Browse recipesTools & Calculators
Your Passport
Private to you
Your personal field journal for this strain.
Quick Facts
- Type
- Hybrid (sativa-leaning)
- THC Range
- 16% – 24%
- CBD Range
- 0.27% – 1.22%
- Flowering Time
- 48–55 d
- Yield (Indoor)
- Moderate
- Yield (Outdoor)
- Moderate
- Difficulty
- Average
- Climate
- Warm
- Best For
- Afternoon
- Height (Outdoor)
- Average
Data Freshness
Confirmation dates are not recorded
- Cannabinoids Sourced
- Terpenes Sourced
- Effects Sourced
- Awards Unresolved
