CANNABIS STRAINS
Created by Neville Schoenmakers at The Seed Bank, Amsterdam. Original Haze crossed with Northern Lights #5. The strain that bridged classic 1970s sativa culture with commercial indoor cultivation — and the genetic ancestor of virtually every Haze strain that followed.
Original Haze was created in Santa Cruz, California, in the late 1960s and early 1970s by combining some of the finest equatorial sativa landraces available at the time: Colombian Gold, Mexican, Thai, and South Indian genetics. The result was a sativa of unprecedented cerebral power, complex citrus-spice aroma, and exceptional duration — but with one fatal commercial flaw: a flowering time of 16–20 weeks that made it impractical for all but the most patient growers in the most favorable climates.
By the early 1980s, Original Haze had largely disappeared from cultivation as the cannabis market moved toward faster, more manageable strains. Neville Schoenmakers, an Australian-born breeder who established The Seed Bank in the Netherlands — one of the first commercial cannabis seed companies in the world — acquired Original Haze seeds and made it his mission to preserve and improve them.
His solution was to cross Original Haze with Northern Lights #5, an indica-dominant strain with exceptional indoor grow stability and a relatively short flowering period. The resulting Neville’s Haze retained the full cerebral character of Original Haze while gaining enough structure and manageable growth traits to be cultivated indoors. The flowering time still pushes 14–16 weeks, but it became commercially viable as a premium, high-effort strain for dedicated cultivators.
Understanding Neville’s Haze requires understanding what went into Original Haze. Each landrace parent contributed specific qualities that combine to produce the Haze terpene and effect profile:
| Landrace | Origin | Key Traits | Contribution to Original Haze |
|---|---|---|---|
| Colombian Gold | Sierra Nevada de Santa Marta, Colombia | Citrus-lemon aroma, cerebral clarity, creative uplift | Citrus-forward terpene base, daytime cerebral quality |
| Mexican (Oaxacan) | Oaxaca, Southern Mexico | Earthy-spicy warmth, long-duration effect, euphoria | Depth of effect, earthy spice character, extended duration |
| Thai | Northern Thailand highlands | Electric energy, fruity-sweet, extreme cerebral intensity | High-energy onset, terpinolene expression, sensory enhancement |
| South Indian | Kerala, South India | Warm body undertone, complex aroma, floral notes | Ocimene floral notes, body-warmth modulation, aroma complexity |
Neville’s Haze is not just a strain — it is the cornerstone of an entire genetic family that dominates the premium sativa market globally. Understanding where it sits in the Haze lineage explains both its historical importance and why its descendants remain among the world’s most sought-after cannabis varieties.
| Strain | Genetic Cross | Flower Time | Key Change from Parent | Era |
|---|---|---|---|---|
| Original Haze | Colombian × Mexican × Thai × South Indian | 16–20 weeks | Founding strain; purest cerebral sativa expression | Late 1960s–1970s, California |
| Neville’s Haze | Original Haze × NL#5 | 14–16 weeks | First indoor-viable Haze; preserved genetics for commercial production | 1980s, The Seed Bank, Netherlands |
| Super Silver Haze | Neville’s Haze × Skunk#1 × NL | 9–11 weeks | More manageable flower time; added Skunk body depth; 3× Cannabis Cup winner | 1990s, Mr. Nice Seeds |
| Amnesia Haze | Original Haze × various (disputed) | 10–12 weeks | Shorter flowering; intense terpinolene citrus profile; Amsterdam coffee shop standard | Late 1990s, Netherlands |
Neville’s Haze’s terpene profile is dominated by terpinolene — the characteristic Haze terpene responsible for that electric, piney-floral-citrus quality that immediately distinguishes Haze from all other cannabis types. Terpinolene is the least common of the major cannabis terpenes, found in abundance only in Haze, Trainwreck, Jack Herer, and a few other sativa-dominant lines.
Ocimene adds a sweet, floral, almost tropical note that contributes to the Haze complexity. Myrcene, while present, plays a supporting role rather than the dominant sedating function it performs in indicas — at Neville’s Haze’s relatively modest myrcene levels, it contributes earthy depth without significantly promoting sedation.
The THC range of 17–21% is meaningful but not extreme by modern standards. The key to Neville’s Haze’s reputation is not raw THC percentage but the quality and duration of the cerebral effect — a function of terpene synergy, landrace genetics, and the extended flowering period that allows full terpene development.
Neville’s Haze produces a high that cannot be replicated by modern indica-dominant strains regardless of their THC content. This is a fundamentally cerebral cannabis experience, and understanding it requires abandoning the framework of relaxation, sedation, and body stone that most modern cannabis coverage defaults to.
Onset (0–15 minutes): An immediate cerebral expansion — thoughts quicken, sensory perception sharpens, and a warm, electric euphoria spreads through the mind. Unlike indica onset which descends into the body, Neville’s Haze ascends into creative and cognitive space.
Main phase (15–120 minutes): Sustained creative energy, enhanced musicality and visual appreciation, deep introspective thought, and a profoundly positive mood. Conversation becomes engaging and ideas flow readily. Many artists, musicians, and writers specifically seek Haze genetics for creative work sessions.
Late phase (2–4 hours): The intensity gradually softens but the cerebral warmth persists for an exceptionally long time compared to most strains. Very little body sedation develops even as the high winds down. Most consumers can remain fully functional throughout the entire duration.
| Strain | Flower Time | THC Range | Key Terpene | Effect Character | Grow Difficulty |
|---|---|---|---|---|---|
| Neville’s Haze | 14–16 weeks | 17–21% | Terpinolene | Deep cerebral, creative, introspective; 3–4h duration | Challenging |
| Durban Poison | 8–9 weeks | 17–20% | Terpinolene, ocimene | Energetic, focused, clear; shorter duration than Haze | Easy to moderate |
| Jack Herer | 8–10 weeks | 18–23% | Terpinolene, caryophyllene | Balanced cerebral/body; more accessible than pure Haze | Moderate |
| Trainwreck | 8–10 weeks | 18–25% | Terpinolene, myrcene | Intense hybrid: cerebral rush plus body relaxation | Moderate |
Growing Neville’s Haze successfully is a test of skill, patience, and spatial management. Outdoor plants can reach 3 meters or more. Indoor plants without intervention will outgrow most grow tents within the first four weeks of flowering stretch. Height control is not optional — it is the central challenge of this grow.
| Parameter | Specification | Height Management Notes |
|---|---|---|
| Flowering Time | 14–16 weeks | Patience is non-negotiable; harvesting early sacrifices terpene development |
| Difficulty | Challenging | Not suitable for beginner growers |
| Indoor Height Without Training | 180–240 cm | Unmanageable in standard 2m tents without aggressive intervention |
| Recommended Training | ScrOG + early topping + supercropping | Begin training at week 3–4 vegetative; flip to 12/12 when canopy is 30–40 cm in net |
| Flowering Stretch | 200–300% height increase | Supercrop any branches approaching lights before week 6 |
| Indoor Yield | 350–500 g/m² | Requires skilled ScrOG management to achieve upper end |
| Outdoor Height | 250–350 cm | Top repeatedly from May onward to control structure |
| Outdoor Climate | Tropical/subtropical preferred | Temperate climates require greenhouse with light dep for flowering control |
| Late-Flower RH | 45–55% | Sativa structure = more open buds, lower botrytis risk than dense indicas |
| Harvest Indicator | Trichomes 80% cloudy / 20% amber | Harvest on the early amber side to preserve cerebral terpene character |
Neville’s Haze is not a general-purpose medical strain. Its intense cerebral energy makes it unsuitable for anxiety disorders, psychosis-spectrum conditions, or any patient who finds THC-induced mental stimulation uncomfortable. However, for patients with specific conditions that benefit from an energizing, mood-elevating cannabis experience, it is exceptional.
Depression and Mood Disorders: The sustained euphoria and mental energy Neville’s Haze produces can be profoundly effective for low-energy depression, anhedonia, and treatment-resistant mood disorders. Unlike sedating indicas that may worsen fatigue-component depression, Neville’s Haze is activating and uplifting.
Fatigue and ADHD: At low to moderate doses, many patients with fatigue conditions and ADHD report improved focus, motivation, and mental clarity. The terpinolene-dominant profile supports alertness without the body-heavy sedation of myrcene-dominant strains.
Chronic Pain at Low Doses: At low doses, Neville’s Haze can provide daytime pain management without the sedation that prevents patients from working or engaging socially. This makes it valuable for pain patients who need to remain functional during the day.