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Sativa80/20 Sativa-dominant25–28% THC

Ghost Train Haze

Also known as: GTH, Ghost Train Haze #1, GTH #1

Breeder: Rare Dankness Seeds

Ghost Train Haze is one of the most decorated and potent sativa-dominant hybrids in cannabis history. Bred by Rare Dankness Seeds in Colorado in 2011, it earned High Times' 'Most Potent Strain on Earth' title in both 2012 (25.49% THC) and 2014 (27.46% THC). A rare terpinolene-dominant cultivar, it delivers explosive citrus-pine-haze aromatics with an intensely euphoric, energizing cerebral high. Not recommended for novice consumers due to extreme potency. Ghost Train Haze carries a terpinolene-dominant terpene profile, uncommon among high-THC cultivars and a hallmark of the Haze family. Typical analytical ranges under optimized conditions show terpinolene at 0.3–1.0%, myrcene at 0.2–0.8%, limonene at 0.2–0.5%, beta-caryophyllene at 0.1–0.3%, and alpha-pinene at 0.1–0.3%, with total terpene content aggregating between 1.0% and 3.0% by weight. The Ghost OG parentage contributes beta-caryophyllene, limonene, and myrcene, while Nevil's Wreck brings the terpinolene, ocimene, and pinene that define the strain's crisp, uplifting headspace. The sativa-to-indica ratio is typically reported as 80/20 or 70/30 depending on the phenotype, with THC routinely testing between 25% and 28%. Rare Dankness founder Scott 'Moonshine' Reach has noted the strain produces a 'wide array of terpenes' and is exceptional for making extracts. The Ghost OG mother was sourced from Weedzilla of the Devils Harvest Krew (DHK) and was traded openly among breeders for over a decade.

Lineage
Ghost OG x Nevil's Wreck
THC Range
25–28%
Flower Time
9-12 weeks
Difficulty
Moderate

Lineage & Genetics

Cross: Ghost OG x Nevil's Wreck

Parent strains in encyclopedia:Ghost OGNevil's Wreck

Ghost OG is a clone-only OG Kush phenotype collected by the Devil's Harvest Krew, known for heavy resin and fuel aromatics. Nevil's Wreck is an F3 BX2 of Arcata Trainwreck (DrJays Cut) x Neville's Haze — connecting the Trainwreck and Haze lineages to produce the sativa energy and haze terpene expression.

Terpene Profile

DOMINANT

TerpinoleneRare dominant terpene providing piney, floral, herbaceous character; shared with Jack Herer and Dutch Treat. Contributes to energizing, cerebral effects.

SECONDARY

MyrceneAdds earthy depth and enhances overall cannabinoid potency

SECONDARY

LimoneneDrives the sour citrus and lemon notes; mood-elevating

SECONDARY

OcimeneContributes sweet, herbaceous complexity to the haze profile

SECONDARY

CaryophylleneProvides spicy pepper notes and anti-inflammatory balance

SECONDARY

PineneAdds sharp pine aroma and supports mental alertness

Aroma: Sour haze and citrus pine dominate with earthy undertones and a pungent, room-filling intensity

Flavor: Citrus and pine on inhale with sour lemon, spice, and earthy haze on exhale

Effects & Experience

Onset: Rapid cerebral euphoria with immediate energy surge and mental uplift

Intensely euphoric, energetic, and creative with strong cerebral focus. Uplifting and social without sedation. Can cause paranoia or anxiety in novice users or at high doses due to extreme THC content.

Duration: 2–4 hours of intense cerebral stimulation

Commonly Reported Uses

depressionstressfatiguechronic painappetite loss

Grower's Notes

Flower
9-12 weeks
Indoor Yield
400-600 g/m²
Outdoor Yield
400-800 g/plant
Difficulty
Moderate
Height / Stretch
Tall (100-200 cm)
Environment
Indoor, Outdoor

Ghost Train Haze is a vigorous sativa-dominant hybrid that demands respect from the cultivator. Bred by Rare Dankness Seeds from Ghost OG and Nevil's Wreck, GTH carries strong sativa architecture—tall, open-branching plants with long internodes that can stretch aggressively once flipped to flower, commonly doubling in height during the transition. Indoor growers should plan for this stretch and initiate training early. Topping, supercropping, low-stress training, and SCROG netting are all effective strategies; left unmanaged, plants can easily exceed five to six feet and outgrow a standard tent. One Illinois grow journal documented a Christmas-tree structure with bunched nodes in veg that opened up dramatically in flower, requiring multiple pruning passes.

Structure tends toward a classic sativa frame

sturdy central stalk with lateral branching that benefits from lollipopping the lower third to redirect energy into the canopy. Dense foliage means regular defoliation improves airflow and light penetration to interior bud sites. Despite the sativa dominance, buds develop into surprisingly dense, golf-ball-shaped clusters along the colas rather than the wispy formations typical of many hazes. Trichome production is extraordinary—buds appear frosted with crystalline white and amber-tinted resin glands, a trait that makes GTH a top-tier candidate for solventless extraction.

Flowering Time and Harvest

Flower time runs 65–85 days (9–12 weeks) from flip, with most phenotypes finishing around day 65–70. Rare Dankness lists 8–9 weeks for their feminized GTH #1; grower reports and competition entries (Green Man Cannabis flowered their Cannabis Cup winner for 80 days) suggest 9–10 weeks is more typical for full trichome maturity. Monitor trichomes closely with a 30–60x loupe—harvest when heads are predominantly milky with early amber for maximum potency.

Nutrient Management

GTH performs well in multiple media. Soil growers report success in 5-gallon fabric pots with living soil and microbial teas (Nectar for the Gods, SLF-100, Cultured Biologix). Coco-perlite blends work equally well with a balanced veg-to-bloom nutrient line; one DWC grower ran CNS17 Bloom at 10 ml/gallon through flower with excellent results. Maintain pH at 6.2–6.6 in soil or 5.8–6.0 in hydro. The plant is a moderate-to-heavy feeder—increase phosphorus and potassium through flowering to support dense bud formation, and supplement with Cal-Mag throughout. Watch leaf tips carefully; nutrient burn shows quickly in sativa-dominant genetics. Flush with plain pH-balanced water for 5–7 days before harvest.

Environment and Climate

Environment should stay at 68–80°F during veg, dropping slightly to 65–75°F during bloom. Humidity is critical: 55–65% in veg, tapering to 40–50% by mid-flower and below 45% in the final weeks. Dense bud structure and heavy resin make GTH susceptible to botrytis (bud rot) and powdery mildew if humidity climbs. Robust airflow—oscillating fans across the canopy plus inline exhaust with carbon filtration—is non-negotiable, especially given the strain's intense citrus-pine-skunk aroma during late flower. Full-spectrum LEDs at 600–800 PPFD during bloom deliver strong results; HPS at 400–600W is also proven.

Color Development

Color expression is predominantly deep forest green with lime-green undertones and vibrant orange-to-rust pistils. GTH is not bred for anthocyanin expression, so purple coloration is uncommon, though cooler late-flower temps may bring faint violet hues on sugar leaves in some phenotypes. The visual calling card is the sheer density of the trichome blanket—buds shimmer under light and are exceptionally sticky to the touch.

Pest and Disease Resistance

For pest and disease management, the dense canopy demands proactive IPM. Spider mites, aphids, and thrips are the primary arthropod threats; beneficial insects (ladybugs, predatory mites) and preventive neem oil applications during veg reduce risk. The real enemy is mold—maintain strict environmental controls through harvest. GTH is generally considered resistant to common diseases when environmental parameters are dialed in.

Wash and Extraction

Wash data from extraction-focused growers confirms GTH as elite hash plant material. Resin-heavy trichome heads in the 73–120 micron range produce excellent bubble hash yields, with user reports noting "incredible rosin yield" from fresh-frozen material. Expect 3–8% bubble hash return from fresh-frozen input, with the 73–90 micron fraction producing full-melt quality suitable for pressing into hash rosin at 70–80% conversion.

Drying and Curing

Dry the harvest slowly at 60°F and 55–60% RH in complete darkness for 10–14 days until stems snap cleanly. Cure in airtight mason jars at 58–62% humidity, burping daily for the first week and weekly thereafter for a minimum of four weeks. The terpinolene-dominant profile (supported by myrcene, limonene, beta-caryophyllene, and alpha-pinene) is volatile; patient low-temperature drying and extended curing preserve the strain's signature crisp citrus-floral-pine bouquet and prevent the hay-like off-notes that plague rushed harvests.

History & Origin

Created in 2011 by Rare Dankness Seeds (founded by Scott 'Moonshine' Reach) in Colorado. Ghost Train Haze earned High Times' inaugural 'Strongest Strain on Earth' title in 2012 with 25.49% THC tested at the Denver Cannabis Cup. It reclaimed the title in 2014 at 27.46% THC. The strain has accumulated over 100 global awards including multiple Cannabis Cup Sativa championships. It connects two legendary lineages: OG Kush (Ghost cut) and the Trainwreck/Haze family through Nevil's Wreck.

Awards & Recognition

  • #1 Strongest Strain on Earth — High Times 2012 (25.49% THC, Denver Cannabis Cup)
  • 2nd Place Medical Sativa — 2013 High Times Cannabis Cup
  • 1st Place US Sativa — 2014 High Times Cannabis Cup (Green Man Cannabis, Denver)
  • Strongest Strain on Earth — High Times 2014 (27.46% THC, OrganiBliss/Leaf Doctor)
  • 1st Place Best Colorado Sativa Flower — 2015 High Times US Cannabis Cup Denver (Greenman Cannabis)
  • 1st Place Best US Sativa Flower (GTH #13) — 2015 High Times US Cannabis Cup Denver (Greenway Las Vegas)
  • #5 Strongest Strains on Earth — High Times 2016 (25.74% THC, Greenman Cannabis)
  • 1st Place Sativa — 2018 Karma Cup (Unlicensed Producer category)

Frequently Asked Questions

6 common questions about Ghost Train Haze

What is Ghost Train Haze and what are its genetics?

Ghost Train Haze is a sativa cannabis strain (80/20 Sativa-dominant) bred by Rare Dankness Seeds. It is a cross of Ghost OG x Nevil's Wreck, testing at 25–28% THC. Ghost Train Haze is one of the most decorated and potent sativa-dominant hybrids in cannabis history. Bred by Rare Dankness Seeds in Colorado in 2011, it earned High Times' 'Most Potent Strain on Earth' title in both 2012 (25.49% THC) and 2014 (27.46% THC).

What does Ghost Train Haze smell and taste like?

Ghost Train Haze's dominant terpenes are Terpinolene. The aroma is described as sour haze and citrus pine dominate with earthy undertones and a pungent, room-filling intensity. The flavor profile features citrus and pine on inhale with sour lemon, spice, and earthy haze on exhale.

What are the effects of Ghost Train Haze?

Rapid cerebral euphoria with immediate energy surge and mental uplift Intensely euphoric, energetic, and creative with strong cerebral focus. Uplifting and social without sedation. Duration is typically 2–4 hours of intense cerebral stimulation. Commonly reported uses include depression, stress, fatigue, chronic pain.

How hard is Ghost Train Haze to grow?

Ghost Train Haze is rated moderate difficulty. It flowers in 9-12 weeks, reaches tall (100-200 cm) in height, and yields 400-600 g/m² indoors. Best suited for indoor, outdoor environments.

What are the parent strains of Ghost Train Haze?

Ghost Train Haze is a cross of Ghost OG and Nevil's Wreck. Ghost OG is a clone-only OG Kush phenotype collected by the Devil's Harvest Krew, known for heavy resin and fuel aromatics. Nevil's Wreck is an F3 BX2 of Arcata Trainwreck (DrJays Cut) x Neville's Haze — connecting the Trainwreck and Haze lineages to produce the sativa energy and haze terpene expression..

Has Ghost Train Haze won any cannabis awards?

Yes. Ghost Train Haze has received recognition including #1 Strongest Strain on Earth — High Times 2012 (25.49% THC, Denver Cannabis Cup); 2nd Place Medical Sativa — 2013 High Times Cannabis Cup; 1st Place US Sativa — 2014 High Times Cannabis Cup (Green Man Cannabis, Denver).

Sources & References (33)
  1. https://raredankness.com/ghost-train-haze-1/
  2. https://seedfinder.eu/en/strain-info/ghost-train-haze-nr1/rare-dankness-seeds
  3. https://hightimes.com/strains/analysis-earths-strongest-strains/
  4. https://hightimes.com/strains/the-strongest-strains-on-earth-2016/
  5. https://hightimes.com/business/winners-of-the-2015-high-times-u-s-cannabis-cup-denver/
  6. https://eastbayexpress.com/meet-high-times-strongest-strain-on-earth-og-ghost-train-haze-1/
  7. https://abstraxtech.com/blogs/learn/ghost-train-haze-favorite-strain
  8. https://thisiswhyimhigh.com/strains/ghost-train-haze
  9. https://cannapages.com/strains/ghost-train-haze/
  10. Grower's Notes cultivation sources:
  11. https://www.leafly.com/news/growing/how-to-grow-ghost-train-haze-marijuana
  12. https://weedmaps.com/strains/ghost-train-haze
  13. https://www.puresativa.com/ghost-train-haze-1-female-cannabis-seeds-by-rare-dankness
  14. https://www.attitudeseedbankusa.com/rare-dankness-seeds-ghost-train-haze-1/prod_57
  15. https://www.allbud.com/marijuana-strains/sativa-dominant-hybrid/ghost-train-haze
  16. https://thcdesign.com/blog/ghost-train-haze-strain/
  17. https://hightimes.com/grow/the-strongest-strains-on-earth-2017/
  18. https://www.prweb.com/releases/green_man_cannabis_wins_1st_place_in_us_for_ghost_train_haze_marijuana_at_the_recent_2114_high_times_cannabis_cup/prweb11850500.htm
  19. https://mellowfellow.fun/blogs/learn/ghost-train-haze-strain-review
  20. https://cannabistraininguniversity.com/strains/ghost-train-haze/
  21. https://buycannabisseeds.net/growing-guides/how-to-grow/how-to-grow-ghost-train-haze-a-step-by-step-guide/
  22. https://herbiesheadshop.com/cannabis-seeds/ghost-train-haze
  23. https://www.newsgram.com/health/2025/10/06/growing-ghost-train-haze-seeds
  24. https://blimburnseeds.com/blog/marijuana-crop-guide/how-to-grow-ghost-train-haze-x-pellezino-strain/
  25. https://app.jointcommerce.com/blog/category/cannabis-101/ghost-train-haze-strain-a-comprehensive-strain-guide/
  26. https://whatsmypot.com/strain/terps/Pinene
  27. https://illinoisnewsjoint.com/news-joint-grow-journal-74-ghost-train-haze-part-i/
  28. https://growdiaries.com/diaries/255411-original-sensible-seeds-ghost-train-power-grow-journal-by-solitudecorners
  29. https://www.420magazine.com/community/threads/ghost-train-haze-1-soil-hydro-grow.228401/
  30. https://hypnoseeds.com/the-blog/how-to-grow-ghost-train-haze-seeds-2025-grow-diary/
  31. https://www.ilovegrowingmarijuana.com/strains/ghost-train-haze/
  32. https://www.bakeboxxwholesale.com/tools/bubble-hash-yield-calculator
  33. https://www.lowtemp-plates.com/blogs/knowledge/bubble-hash-vs-rosin

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