Original Haze
A legendary 1970s California sativa polyhybrid with disputed lineage and notoriously long flowering time.
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Original Haze is more myth than product. The actual seed line from the 1970s is almost certainly not for sale anywhere. What you buy as 'Original Haze' is a modern Haze-dominant hybrid—often a cross designed to flower faster and yield more. The real plant takes 12–16 weeks indoors, grows tall and lanky, and produces modest yields. The celebrity status comes from its genetics entering European breeding in the 1980s, where it shaped countless hybrids. Most of Haze's reputation for cerebral, energetic effects is anecdote, not science.
Overview
Original Haze is a sativa-dominant polyhybrid developed in Santa Cruz County, California in the late 1960s and early 1970s by two breeders commonly referred to as the 'Haze Brothers.' Anecdote [1] It is not a single stabilized cultivar but a heterogeneous seed line built from imported equatorial sativas, with phenotypes that were notoriously variable.
Its historical importance lies in its influence on modern breeding. Through Sam 'the Skunkman' Selznij and later Neville Schoenmakers of The Seed Bank of Holland, Haze genetics entered European breeding pools in the 1980s, becoming the sativa component of numerous hybrids including Super Silver Haze, Jack Herer, and Amnesia Haze. Anecdote [1] Most contemporary 'Haze' commercial strains trace to these later hybrids rather than to the original line.
What almost no one sells today is the actual original seed stock. Surviving Haze cuts (often labeled 'Haze A' and 'Haze B') are held by a small number of breeders and collectors; the seed population that produced them is Disputed generally considered lost.
Lineage and Breeding History
The most commonly cited parentage is Colombian Gold × Mexican (Acapulco Gold or similar) × South Indian × Thai, blended over several generations. Disputed [1] This account derives primarily from interviews with Sam Selznij and Neville Schoenmakers, plus secondary reporting in cannabis journalism from the 1990s onward.
Significant uncertainty remains:
- The Haze Brothers themselves left no published breeding records. No data
- Different secondary sources report different crossing orders and ratios. Disputed
- 'Colombian,' 'Mexican,' and 'Thai' as used in 1970s California referred to imported flower of unknown actual provenance—not characterized landraces.
- The plants distributed from California to the Netherlands were already a heterogeneous seed population, not a stabilized line, so 'Original Haze' genetics diverged immediately upon distribution. [1]
Treat the lineage as broadly plausible in outline, unverifiable in specific detail. No primary documentation exists.
Cannabinoid and Terpene Chemistry
No published peer-reviewed analysis of the original 1970s Haze seed line exists. No data Any chemical profile attributed to 'Original Haze' comes from modern descendants or preserved cuts, not the source population.
Cannabinoids. Modern Haze-labeled flower typically tests 15–22% THC with negligible CBD (<1%). By contrast, older laboratory analyses of 1970s–1980s sativa imports—the genetic category Haze emerged from—showed total THC in the 5–12% range. [2] The popular notion that Haze is 'always sky-high THC' reflects modern selective breeding and laboratory testing practices, not the original material.
Terpenes. Surviving Haze A and Haze B cuts are commonly reported as terpinolene-dominant, with secondary myrcene, ocimene, and caryophyllene. Weak / limited [3][4] This profile is based on lab panels of modern cuts shared by breeders and dispensaries, not on historical samples. Common sensory descriptors include spicy, incense, and citrus notes.
Misleading claims about terpenes (such as the widely repeated 'myrcene >0.5% causes couchlock') are folklore. See: [The Myrcene 0.5% Threshold] Evidence that any single terpene threshold reliably predicts cannabis effects in humans is limited.
Reported Effects
No controlled clinical studies of Original Haze or any named cannabis cultivar exist. No data Everything below is user-reported, drawn from decades of grower and consumer accounts, and is confounded by dose, individual neurochemistry, setting, and the fact that 'Haze' now refers to many different plants.
Commonly reported effects across Haze-lineage flower include:
- Strongly cerebral, energetic, sometimes racy onset Anecdote
- Long duration relative to many indica-dominant hybrids Anecdote
- Reports of anxiety or paranoia at higher doses, more often than with some myrcene-dominant cultivars Anecdote
- Minimal sedation or 'body heaviness' Anecdote
The sativa/indica binary often used to explain these differences is not supported by chemotype data. [4][5] See: [The Indica/Sativa Myth] If Haze-lineage plants feel different from, say, Granddaddy Purple descendants, causation likely involves specific cannabinoid and terpene profiles, THC dose, and expectancy effects rather than taxonomic classification.
Cultivation
Original Haze is notoriously difficult to grow, and the reputation is warranted.
Flowering time: 12–16 weeks indoors is standard; some phenotypes may not finish in cool outdoor climates. Anecdote [1]
Structure: tall, lanky, with long internodes and thin-fingered leaves. Stretches 2–4× during flowering. Requires aggressive vegetative training (SCROG, supercropping, topping) in most indoor setups.
Yield: modest by modern standards. Approximately 300–400 g/m² indoors under good conditions. Anecdote
Environment: prefers warm, humid conditions consistent with its equatorial heritage. Tolerates heat better than many modern hybrids.
Pest and pathogen exposure: the airy bud structure offers moderate mold resistance, but the extended flowering window increases exposure to pests and pathogens over time.
Difficulty level: advanced. Not recommended for first grows.
Most commercial 'Original Haze' seeds sold today are F1 hybrids or backcrosses bred to reduce flowering time and increase yield while attempting to preserve the terpene profile. These will typically behave very differently from a true long-flowering Haze phenotype. See: [How to Grow Haze]
Marketing Claims vs. Reality
Claim: 'This is Original Haze.' Reality: Almost certainly not. The original seed line from the 1970s is Disputed generally considered unavailable commercially. What is sold as 'Original Haze' is typically a modern Haze-dominant hybrid, often a backcross or F1 cross designed to shorten flowering time and increase yield.
Claim: 'Haze is a pure sativa.' Reality: Haze is a polyhybrid of multiple equatorial sativas crossed over several generations—there is no such thing as 'pure' after open crossing. The pure-sativa label is marketing shorthand, not genetics.
Claim: 'Haze gives a clean, cerebral high because it's a sativa.' Reality: The indica/sativa distinction does not reliably predict cannabis effects in modern chemotyped plants. [4][5] Whatever effects you experience from Haze-lineage flower are driven by its specific cannabinoid and terpene composition, THC dose, your individual neurochemistry, and expectancy—not by its taxonomic label.
Claim: 'Original Haze tests at 25%+ THC.' Reality: True Haze phenotypes historically tested lower than modern hybrids. High-THC 'Haze' on dispensary shelves reflects decades of selective breeding for potency and, often, inflated or inconsistent lab reporting.
Frequently Asked Questions
Is Original Haze a sativa or indica? Haze is classified as sativa-dominant, but the sativa/indica distinction does not reliably predict effects. [4][5] Haze-lineage plants share traits associated with 'sativa' morphology (tall, long flowering) and commonly reported effects (cerebral, energetic), but these are driven by cannabinoid and terpene profiles, not by taxonomic category. See: [The Indica/Sativa Myth]
What THC level should I expect? Historical Haze (1970s–1980s imports, the genetic material the line came from) was typically 5–12% THC. [2] Modern Haze-labeled flower tests 15–22% THC, reflecting decades of selective breeding and modern testing. If you purchase 'Original Haze' seed or clone today, expect the modern range. Lab results can be unreliable, so treat posted numbers as rough estimates.
How long does it take to flower? Original Haze takes 12–16 weeks indoors, sometimes longer. Anecdote [1] This extended flowering window is one reason it is rarely grown commercially. Most 'Original Haze' seeds available today are hybrids bred to flower faster—often 8–12 weeks—so check the breeder's specification.
Who actually bred it? The 'Haze Brothers' are credited, but their identities and exact methods are not definitively documented. Anecdote [1] The lineage entered European breeding through Sam Selznij and Neville Schoenmakers in the 1980s. Beyond these names and general accounts in cannabis press, original breeding records do not survive.
Sources
- Book Clarke, R. C., & Merlin, M. D. (2013). Cannabis: Evolution and Ethnobotany. University of California Press.
- Peer-reviewed ElSohly, M. A., Mehmedic, Z., Foster, S., Gon, C., Chandra, S., & Church, J. C. (2016). Changes in cannabis potency over the last 2 decades (1995–2014). Biological Psychiatry, 79(7), 613–619.
- 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.
- Peer-reviewed Piomelli, D., & Russo, E. B. (2016). The Cannabis sativa versus Cannabis indica debate: An interview with Ethan Russo, MD. Cannabis and Cannabinoid Research, 1(1), 44–46.
- 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(1), 4519.
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