Burlington-based writer covering Vermont's cannabis industry since 2023. Visits every licensed dispensary in the state, tests products, and reads the CCB rulebook so you don't have to.
Quick Answer
Purple Haze (Haze × Purple Thai, no identified commercial breeder; Terpinolene or Myrcene dominant depending on chemotype; 17–22% THC) and Amnesia Haze (Soma Seeds, Amsterdam, ~2003; multi-landrace cross of Thai, Cambodian, Laotian, Afghani Hawaiian, and Jamaican Haze genetics; Terpinolene → Limonene → Myrcene; 20–22% THC) are siblings in the Haze family — both sativa-dominant, both daytime-only, both Terpinolene-influenced. The difference is ceiling and intensity. Purple Haze comes in two chemotypes: Terpinolene-dominant (Terpinolene → Myrcene → Ocimene, classic Haze sativa energy, berry-pine aroma, accessible) and Myrcene-dominant (Myrcene → Terpinolene → Pinene, warmer and slightly more grounded, fuller berry-grape character). Both Purple Haze expressions are manageable at normal doses. Amnesia Haze is always Terpinolene-dominant, always the most intense strain in the Haze family: fastest onset in the series (2–5 minutes from inhalation), highest cerebral ceiling, longest effect arc (3–4 hours), and greatest anxiety risk for sensitive consumers. Choose Purple Haze when you want a Haze-family sativa with berry character and an accessible intensity. Choose Amnesia Haze when you are an experienced consumer who has already worked through the rest of the sativa series and wants the historical ceiling of the Amsterdam sativa tradition. Vermont law (S.278, 2026): adults 21+ may carry up to 2 oz flower; flower THC cap remains at 30%.
Both strains have "Haze" in the name and both are firmly in the daytime sativa category. That is where the easy comparison ends. Purple Haze and Amnesia Haze represent different positions in the Haze family's spectrum of intensity: one is an accessible, berry-forward sativa with two distinct expressions; the other is the Amsterdam tradition's most historically demanding sativa — faster onset, longer arc, and a ceiling that requires experience to navigate well. Knowing which end you are shopping for matters.
TL;DR
Purple Haze (Haze × Purple Thai; no identified commercial breeder; inherited from 1970s California cannabis culture; named after Jimi Hendrix's 1967 song): Two documented chemotypes. Terpinolene-dominant (Terpinolene → Myrcene → Ocimene) — classic Haze-family daytime sativa energy, berry-pine aroma, fast alert onset. Myrcene-dominant (Myrcene → Terpinolene → Pinene) — warmer arrival, fuller grape-berry character, slightly more grounded. Both expressions: daytime-only, no couch-lock, 17–22% THC Vermont retail, 2–3 hour effect arc. Accessible to intermediate daytime sativa consumers.
Amnesia Haze (Soma Seeds, Amsterdam, ~2003; multi-landrace cross: Thai × Cambodian × Laotian × Afghani Hawaiian × Jamaican Haze; High Times Cannabis Cup Sativa 2004 and 2012): Always Terpinolene-dominant — Terpinolene → Limonene → Myrcene. Tropical-citrus aroma. 20–22% THC Vermont retail. Onset 2–5 minutes from inhalation — fastest in the Haze series. Effect arc 3–4 hours — longest in the series. Highest cerebral ceiling. Highest anxiety risk. For experienced consumers who have worked through the rest of the sativa catalog.
Shared heritage: what they have in common
Both strains trace to the same Original Haze genetics — the four-way sativa landrace cross (Colombian × Mexican × Thai × South Indian) developed by breeders known as the Haze Brothers in Santa Cruz, California in the 1970s. That lineage is the genetic foundation of the modern commercial sativa market. It explains the traits that Purple Haze and Amnesia Haze share: both are Terpinolene-dominant or Terpinolene-influenced, both produce cerebral daytime energy rather than body sedation, both have complex aroma profiles rather than simple fruity sweetness, and both are appropriate for daytime-only use.
The comparison breaks here. Purple Haze crosses Original Haze genetics against Purple Thai — a Thai sativa landrace selected for its anthocyanin pigmentation and berry aroma — and the result is a two-parent hybrid with the berry warmth that the Thai parent brings. Amnesia Haze goes further back, crossing the same foundational Haze genetics against a five-contributor landrace collection: Thai, Cambodian, and Laotian sativa genetics for an intense, long-duration cerebral foundation; Afghani Hawaiian for slight physical grounding and tropical sweetness; Jamaican Haze for the Terpinolene-forward aromatic character. The multi-generational complexity of the Amnesia Haze lineage is the direct source of its effect intensity. More contributing genetics, refined over more generations for the specific qualities the Amsterdam market valued most.
Where they diverge: terpenes and chemotype
Purple Haze's dual chemotype is its most practically important characteristic for Vermont dispensary shoppers. The Terpinolene-dominant expression (Terpinolene → Myrcene → Ocimene) produces the classic Haze-family sativa experience: alert, cerebral, fast-onset, pine-floral-berry aroma, with Ocimene's fruity-floral top note adding brightness that distinguishes it from the more resinous-piney character of Jack Herer or Trainwreck. The Myrcene-dominant expression (Myrcene → Terpinolene → Pinene) is a meaningfully different experience in the jar and in effect: the berry-grape character becomes more prominent, the onset is warmer and less abrupt, the experience is more grounded. Both expressions are authentic Purple Haze. A COA telling you whether Terpinolene or Myrcene leads is telling you which sativa experience you are getting.
Amnesia Haze has no dual chemotype. It is reliably Terpinolene-dominant — Terpinolene → Limonene → Myrcene — across batches. The Limonene second position is the key distinguishing marker within the Terpinolene-dominant sativa category: Jack Herer and Super Silver Haze have Caryophyllene and Pinene in the second and third positions; Amnesia Haze's Limonene secondary contributes the bright tropical-citrus sweetness that separates it from the more resinous-earthy character of Jack Herer and gives it its citrus-mango aromatic personality. The Myrcene third grounds the profile without pulling it toward indica territory — at Amnesia Haze's expression levels, it adds a light earthy note and prevents the experience from feeling thin.
Effect comparison: onset, peak, and arc
| Trait | Purple Haze | Amnesia Haze |
|---|---|---|
| Lineage | Haze × Purple Thai | Thai × Cambodian × Laotian × Afghani Hawaiian × Jamaican Haze (Soma Seeds) |
| Sativa % | ~75–80% | ~80% |
| Terpene profile | Terpinolene → Myrcene → Ocimene or Myrcene → Terpinolene → Pinene | Terpinolene → Limonene → Myrcene |
| THC range (VT retail) | 17–22% | 20–22% |
| Aroma | Berry-grape, pine-Haze resin, fruity-floral | Tropical-citrus, lemon-mango, piney backbone, earthy warmth |
| Onset speed | 5–15 min (Terpinolene type); 10–20 min (Myrcene type) | 2–5 min — fastest in series |
| Effect arc | 2–3 hours | 3–4 hours |
| Cerebral intensity | Moderate — accessible to intermediate | High — all-consuming at peak |
| Anxiety risk | Low–moderate (Myrcene type lowest; Terpinolene type moderate) | High — highest in Haze series |
| Best for | Creative work, afternoon, social, mood lift, Haze-curious consumers | Extended creative sessions, open-ended social, experienced consumers only |
| Cup credentials | No major cup history | HT Cannabis Cup Sativa 2004 + 2012 |
Effect arcs
Purple Haze (Terpinolene-dominant):
- Onset (5–15 min): A clean, alert shift — the Haze-family cerebral lift arrives with the berry-pine aroma. Faster than Myrcene-dominant sativas, less abrupt than Durban Poison or Trainwreck. Present and focused from the first minutes, without a racing quality.
- Mid-phase (15–90 min): Elevated mood, heightened sensory engagement, creative mental energy. The Thai genetics contribute a slightly introspective, "headspace-y" quality that distinguishes Purple Haze from Jack Herer's more focused and functional character.
- Late phase (90 min–3 hrs): Gradual return. The berry warmth becomes more prominent as the Terpinolene sharpness softens. Ends cleanly, without a sedating transition.
Purple Haze (Myrcene-dominant):
- Onset (10–20 min): Warmer, berry-forward. The fuller grape-berry character arrives first in the aroma; the effect follows with a softer, more grounded lift than the Terpinolene expression.
- Mid-phase (20–90 min): Alert but warmer than the Terpinolene type. The Thai-influenced mental character is present but softer, and the physical ease that Myrcene provides at these levels keeps the experience grounded without sedation. A good option for consumers who want Haze-family creativity without the full Terpinolene sharpness.
- Late phase: Smooth return. Fuller berry note throughout; no abrupt shift.
Amnesia Haze:
- Onset (2–5 min): The fastest onset in the sativa series. A sharp, immediately intense cerebral shift — the "Amnesia" quality the name describes. Strong mood elevation, heightened sensory awareness, a present-moment quality that makes holding a thread of thought mid-sentence difficult. At moderate doses for experienced consumers, this is euphoric and freeing; at higher doses or in sensitive consumers, it crosses into racing thoughts and disorientation rapidly.
- Peak (5–90 min): All-consuming cerebral intensity. Sustained euphoria at a level that makes focused task completion impractical. The Southeast Asian landrace character shows most clearly here: an introspective, sometimes psychedelic-adjacent quality that distinguishes Amnesia Haze from the more functional, directed character of Jack Herer or Super Lemon Haze.
- Late phase (90 min–4 hrs): Gradual easing over a long arc. The full 3–4 hour window requires planning. Consumers who underestimate this and take a second dose during what they interpret as the peak are among the most common reports of difficult cannabis experiences.
Who should reach for Purple Haze
- You are curious about Haze-family sativas and want to start with a berry-forward, accessible entry point — particularly the Myrcene-dominant chemotype
- You want the creative, slightly introspective Thai-influenced character of a Haze sativa without committing to Amnesia Haze's intensity
- You found Blue Dream's warmth pleasant but want more daytime energy and cerebral engagement
- An afternoon creative session — writing, art, music — where mild mental drift is welcome
- You want the visual appeal of a purple sativa (anthocyanin expression) alongside a genuine daytime effect
- Social use where you want presence and mood elevation without being overwhelmed
Who should reach for Amnesia Haze
- You are an experienced cannabis consumer who has worked through the Haze series — Blue Dream, Purple Haze, Jack Herer, Super Silver Haze — and want to understand the historical ceiling of Amsterdam sativa culture
- You have tried Super Lemon Haze and handled it well and want to explore a more complex, longer-arc version of the Terpinolene-dominant sativa experience
- You have a clear afternoon or full day where you want an extended, immersive sativa experience without time pressure
- The Cannabis Cup history and lineage depth of a strain matters to you — Amnesia Haze's two Cup wins in 2004 and 2012 represent consistent validation by judges evaluating it blind against a wide field
Who should skip Amnesia Haze
- New or occasional cannabis consumers — start with Blue Dream or Purple Haze's Myrcene expression and work up
- Anxiety-prone consumers — the fast onset, high THC, and long arc are the highest-risk combination in the sativa catalog
- Anyone who found Trainwreck, Durban Poison, or Super Silver Haze too stimulating
- Anyone with time obligations within the next 4 hours — the effect window requires a genuinely open schedule
Vermont availability and COA verification
Purple Haze appears regularly at most Vermont adult-use dispensaries. Theory Wellness (768 Putney Rd, Brattleboro; Mon–Sat 9 AM–9 PM, Sun 10 AM–6 PM) has confirmed Purple Haze availability. Float On Dispensary (136½ Church St, Burlington) and Upstate Elevator Supply Co. (699 Pine St, Burlington) carry rotating Haze-family sativa selections. Vermont's cold autumn nights trigger the anthocyanin expression that gives Purple Haze its purple coloring; fall batches may show the deepest purple-to-indigo coloring.
Amnesia Haze is a specialty item that requires more targeted search. The multi-landrace genetic complexity and longer cultivation timeline make it less common than commercial two-parent hybrids. Upstate Elevator and Float On are the best Burlington-area sources to check; ask specifically about Amsterdam-heritage or multi-landrace sativa genetics. Theory Wellness carries rotating specialty sativas. When you find it, confirm the COA before purchasing.
COA verification — Purple Haze:
- Terpinolene in top two → Haze-expression chemotype; classic sativa energy and berry-pine aroma
- Myrcene leading, Terpinolene second → berry-forward expression; warmer, more grounded but still daytime-appropriate
- Caryophyllene dominant → flag as likely mislabeled; that is a Cookies / OG Kush family terpene signature
COA verification — Amnesia Haze:
- Terpinolene clearly leading → required for authentic profile
- Limonene second → the key Amnesia Haze marker, distinguishing it from Jack Herer (Caryophyllene second) and SSH (Caryophyllene/Pinene)
- Myrcene third → expected supporting role; earthy grounding without sedation
- Myrcene leading on an Amnesia Haze label → atypical; the terpene balance has shifted significantly from the expected profile
See also: Purple Haze strain spotlight — full origin story (Haze × Purple Thai, Jimi Hendrix naming, dual chemotype breakdown), terpene analysis, and Vermont availability; Amnesia Haze strain spotlight — full origin story (Soma Seeds, multi-landrace), Cannabis Cup 2004/2012 history, and why the Southeast Asian genetics produce a 3–4 hour effect arc; Haze strain family guide — the full family tree from Original Haze through Jack Herer, Super Silver Haze, Amnesia Haze, and Blue Dream; Super Silver Haze spotlight — the three-time Cannabis Cup winner, another Terpinolene-dominant Haze descendant with a citrus-piney rather than berry character; Jack Herer spotlight — the balanced everyday Terpinolene sativa between Blue Dream's gentleness and Amnesia Haze's intensity; Blue Dream spotlight — the gentlest Haze descendant and the recommended starting point before Purple Haze; Sour Diesel vs. Jack Herer — the other top daytime sativa comparison, for the Caryophyllene-diesel vs. Terpinolene-pine question; Green Crack vs. Durban Poison — Myrcene-grounded sativa vs. pure Terpinolene-dominant landrace; Durban Poison spotlight — the pure South African sativa landrace, Terpinolene-dominant without the Haze heritage; Vermont Strain Match for a personalized sativa recommendation; full Vermont dispensary directory.
Frequently Asked Questions
What is the main difference between Purple Haze and Amnesia Haze? +
Which is better for someone new to Haze-family sativas? +
What do Purple Haze and Amnesia Haze smell like, and how do I identify each on a COA? +
Which strain produces a longer effect? +
Which has a higher anxiety risk? +
How do Purple Haze and Amnesia Haze fit into the broader Haze family? +
Where can I find Purple Haze and Amnesia Haze at Vermont dispensaries? +
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