Ghost Train Haze cannabis seeds packaging — Royal King Seeds UK
Sativa
THC 25%
⚡ High Potency
SativaFeminisedIn Stock

Ghost Train Haze Feminised

Feminised PhotoperiodSee Lab Report →

Grow Ghost Train Haze Feminised in the UK. Sativa genetics at 25% THC, known for euphoric, happy, uplifted effects.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-14 on 475 seeds.

Germination rate: 98.3% (n=475)
Last QC test date: 2026-09-14
Indoor yield: 388-536 g/m² (avg across 16 verified grower reports)
Outdoor yield: 530-834 g/plant (avg across 3 verified grower reports)

About Ghost Train Haze Feminised

Will Ghost Train Haze finish outdoors in Britain? Yes, within the April to October season. Expect height and expect it early; the long midsummer days at these latitudes suit the plant. Give it room to stretch and tie it down rather than fighting it. Flowering runs 11-12 weeks, which puts harvest in September or October for most of the country.

What yield is realistic? up to 500 g/m2 indoors is achievable with competent LED lighting and attention to feeding. Outdoors, up to 600 g/plant is realistic in 50 litre pots or in prepared ground with full sun — and "full sun" is doing a lot of work in that sentence at these latitudes, so the position you pick in the garden matters more than the pot you buy. At 25% THC with a limonene-forward profile, the return on the effort is sound.

Is it forgiving? Reasonably. Anyone comfortable with pH, a feed schedule and a light timer will get a good result. It will not hold your hand, but it will not punish one missed watering either.

Further questions we get asked about Ghost Train Haze

Which medium? For flavour, peat-free soil cut with about 30% perlite and amended slowly — fish, blood and bone, rock phosphate, seaweed meal, all of it available at any British garden centre. For weight, coco with fertigation at EC 1.4-1.8 through bloom. This sativa performs in both; the choice is about what you want out of it.

How does it handle a British summer? Better than most, because the open structure lets heat out. In a genuine heatwave you may see midday droop, with recovery by evening. Thirty per cent shade netting takes the edge off without costing you much growth. The more common British problem is the opposite one: a cold, wet July that never lets the plant dry out between waterings.

When do I switch to bloom feed? Inside the first week of visible pistils. The 20/80 balance shifts its demand quickly at the transition — phosphorus and potassium up, nitrogen down. Soil growers can top-dress with guano and sulphate of potash; coco and hydro should move to a low-nitrogen bloom formula straight away.

Indoors or outdoors? Both work, for different reasons. Indoors you own the flowering environment completely. Outdoors, across the April to October season, the plant gets a light intensity no domestic LED matches and can reach up to 600 g/plant — at the price of accepting whatever the autumn does. Flowering: 11-12 weeks. Indoor yield: up to 500 g/m2. Outdoor yield: up to 600 g/plant. Plant height: up to 150 cm. Rated intermediate difficulty.

Flavour, aroma and effect

Ghost Train Haze arrives in stages. The first draw at 25% THC brings a bright citrus edge that lifts off the palate immediately. The euphoric, happy, uplifted character follows within minutes, arriving as sharpened attention. Colour reads brighter, music reads busier, and conversation wanders further than it would otherwise. It holds for two to three hours on a plateau rather than a spike. The pinene underneath adds an alertness that keeps thinking crisp.

Terpene breakdown

Primary: Limonene · Secondary: Pinene · Tertiary: Terpinolene. These three build an aroma that keeps moving through the cure. Fresh off the dry it leads with limonene; after three or four weeks sealed in glass at 16-18°C the terpinolene underneath comes up and the whole thing gains a layer. Vaporising between 180°C and 195°C catches the widest span of them, since the lighter terpinolene molecules are the first thing heat destroys.

Who it suits

Who does well with Ghost Train Haze? Indoor growers who want the timeline under their own control. Outdoor growers who want to choose when flowering starts. Anyone with the room and the patience to veg it properly before flipping. Difficulty is rated intermediate, which means a moderate learning curve that rewards attention without demanding a laboratory.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
😊Happy
65% of people reported feeling Happy
😎Uplifted
58% of people reported feeling Uplifted
🤑Energetic
50% of people reported feeling Energetic
🤩Creative
50% of people reported feeling Creative
🧠Focused
42% of people reported feeling Focused
🗣️Talkative
30% of people reported feeling Talkative
💪Motivated
31% of people reported feeling Motivated
😆Giggly
24% of people reported feeling Giggly

Strain Type

Indica 20%Sativa 80%

Strain Data Sheet

🧬THC25% - 28% (Very High)
🌿LineageGhost OG × Nevil's Wreck
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Heightup to 150 cm
⚖️YieldMedium – High
🏠Yield Indoorup to 500 g/m2
🌳Yield Outdoorup to 600 g/plant
⏱Flowering Time11-12 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable United Kingdom legislation.
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Ghost Train Haze Feminised
royalkingseeds.co.uk
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🛡️Aluminium interior lining
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🔢Scratchable serial number

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Ghost Train Haze Feminised — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F5 IBL
Generations
5+
Breeding Programme
IBL Heritage Programme — five-generation inbred fixing
Stabilisation Notes — What This Means for Your Grow

Five generations of inbred selection on the original mid-2010s Ghost Train Haze cuts. We were not chasing a redesign — we locked the haze-character terps that earned this cultivar its reputation. Whatever the next pack throws is what the last pack threw.

Breeding Goal

Pin down the original mid-2010s terpene profile in modern seed form.

Selection Focus

Chosen for trichome density, sativa branching architecture and an energising terpene expression.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
7 September 2026· 99%+ germination