Jack Herer
Jack Herer is named after the author and cannabis activist. Leafly attributes its development to Sensi Seeds and describes a Haze hybrid combined with Northern Lights #5 and Shiva Skunk ancestry. The source acknowledges multiple phenotypes, which matters when interpreting the name as a single record. Its terpinolene-led catalog profile and pine, wood and earth flavor tags describe different evidence types, not a guarantee that every Jack Herer sample shares the same composition.
Ancestry documented · Explore family ↓Compare this strain ↗Effects & flavor notes.
Explore the words people use to describe Jack Herer.
Reported effects
Subjective feelings described by readers.
These are subjective reports, not guaranteed effects or medical conclusions. The report total covers the whole profile; individual tag frequencies are unavailable.
How to read these reportsParents, origins & family
Ancestry documented
The reported construction combines a Haze hybrid with Northern Lights #5 × Shiva Skunk. These are ancestry components, not three equally direct parents.
Reported ancestry
HazeOpen strain profileLeafly — jack herer ↗
Northern Lights #5Open strain profileLeafly — jack herer ↗
Shiva SkunkOpen strain profileLeafly — jack herer ↗Children & later selections 3
Black JackOpen strain profileSource-reported relationship; retained as attributed catalog lineage rather than genetic authentication.
Leafly — Black Jack identity and lineage ↗
Cinderella 99Open strain profileLeafly attributes the Jack Herer seed-origin account to Mr. Soul. The story does not establish a complete direct cross.
Leafly — Cinderella 99 identity and lineage ↗
Jack's CleanerOpen strain profileThe Cleaner remains a named external parent. Its own distant ancestry is not flattened into direct parents of Jack's Cleaner.
Leafly — Jack's Cleaner identity and lineage ↗How to read these relationships
Parent links describe a reported cross. Ancestry components may be several generations back. A phenotype selection comes from a named line rather than a new two-parent cross. Disputed links retain the uncertainty of their source.
Names in this catalog open a strain profile. Other names open the reference describing the relationship. The family view shows the links currently documented here, not every known descendant.
Cannabinoid profile
Leafly catalog summary values, not laboratory results for a specific sample. A displayed 0% is a rounded source value, not proof of absence. Unlisted cannabinoids remain unknown.
Leafly source ↗ · Checked 2026-09-16Concentrations vary by sample. A cultivar name alone does not establish potency.
Terpenes & aroma
Catalog-listed terpenes. Dominance is shown only where the source states it; percentages are unavailable unless separately recorded.
Similar strains
Similarity uses catalog reference chemistry, reported attributes and lineage. Missing data is excluded; this is not an effects prediction.
Jack the Ripper, or JTR, is reported as Jack’s Cleaner crossed with the Space Dude male selection of Space Queen. The catalog connects it with Subcool’s The Dank.
Reported parentage ↗
Red Congolese has competing regional and California lineage accounts in Leafly's catalog. This entry preserves the disputed background rather than presenting African, Mexican or Afghani references as one settled pedigree.
Disputed parentage ↗
Malawi is presented by Leafly as a sativa landrace associated with the Salima region of Malawi. A regional landrace identity is recorded without inventing a two-parent cross or treating every modern sample as identical.
Regional origin ↗Compare with related strains
Choose another strain to compare →References & provenance
- Leafly — jack herer
Catalog identity and lineage reference. The reported construction combines a Haze hybrid with Northern Lights #5 × Shiva Skunk. These are ancestry components, not three equally direct parents.
Accessed 2026-09-14 - Leafly — jack herer catalog parameters
Leafly catalog summary values, not laboratory results for a specific sample. A displayed 0% is a rounded source value, not proof of absence. Unlisted cannabinoids remain unknown. Terpene names and documented order come from the catalog; concentrations are not supplied. Effects, flavors and negative effects are reader-reported tags. The report count covers the profile as a whole, not individual tags.
Accessed 2026-09-16 - Leafly — Jack Herer: identity recheck
Identity check: the account names Northern Lights #5 specifically, not the entire Northern Lights family, and acknowledges phenotype variation. Still needed: a breeder-level historical source and sample-linked chemistry. Preserve the distinction between named selections and broad cultivar families.
Accessed 2026-09-23
Updated 2026-10-06 · Our editorial standards