White Nightmare cannabis seeds packaging — Royal King Seeds Ireland
Sativa
THC 18%
🎨 Creative
SativaFeminisedIn Stock

White Nightmare Feminised

White Nightmare Feminised cannabis seeds for Irish growers. Sativa strain · 18% THC · happy, relaxed, uplifted. Discreet packaging, nationwide delivery, sourced grow figures.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-18 on 275 seeds at 21-24°C.

Germination rate: 99.3% (n=275)
Last QC test date: 2026-09-18
Indoor yield: 423-546 g/m² (avg across 7 verified grower reports)
Outdoor yield, Ireland: 461-632 g/plant (avg across 6 verified grower reports)

About White Nightmare Feminised

White Nightmare carries limonene as its lead note: citrus with bitterness behind it, closer to marmalade peel than to lemonade. Pinene sits beneath it and shows up second, clean and resinous, cutting through. The plant tests at 18% THC across a 20/70 split, though what decides whether any of this reaches the jar is the cure, not the seed.

Growing it for aroma

Growing White Nightmare for terpene expression and growing it for weight are not the same project, and it is worth deciding which one you are on. The Limonene/Pinene/Terpinolene profile does its best work in living soil, where the biology produces compounds a bottle does not contain. Good peat-free compost and worm castings are available in any garden centre here, which makes that approach far less specialist than it sounds.

Stop foliar spraying after the second week of bloom. Anything that lands on a developing trichome is still there at harvest and is tasted rather than seen. In the last three weeks the night temperature decides which terpenes lead: held at 16-18°C the limonene comes forward, while a warmer finish protects the lighter terpinolene notes.

Then the cure, which is where Irish growers lose most of what they built. A ten to fourteen day hang wants 17°C and something near 58% humidity, and the ambient air here will not supply either for most of the year — a closed room and a small dehumidifier will. Into glass afterwards, burped twice daily for a fortnight. The pinene layer arrives somewhere in weeks three and four, not before.

Flowering: 55-65 days. Indoor yield: 400-600 g/m2. Outdoor yield: 350g per plant. Plant height: Small (0-120 cm). Rated easy difficulty.

Flavour, aroma and effect

White Nightmare arrives in order. The first draw at 18% THC gives citrus with a bitter edge that lifts off the palate. The happy, relaxed, uplifted character follows in minutes, as attention sharpening. Colour and sound both read busier, and conversation goes further afield than it otherwise would. It holds two to three hours without a spike. Pinene underneath contributes an alertness that keeps it crisp.

Terpene breakdown

Primary: Limonene · Secondary: Pinene · Tertiary: Terpinolene. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps pinene and terpinolene audible over the limonene; run it hotter, or burn it, and all three collapse into one note that is pleasant enough and tells you nothing.

Who it suits

Who does well with White Nightmare? Indoor growers who want to choose their own timeline. Tunnel growers who want to decide when flowering starts rather than letting August decide it. Anyone with the space to veg it properly first. Rated easy, which means a moderate learning curve that rewards attention without needing specialist kit.

Effects

😊Happy
72% of people reported feeling Happy
😌Relaxed
65% of people reported feeling Relaxed
😎Uplifted
58% of people reported feeling Uplifted
🤑Energetic
50% of people reported feeling Energetic
🤩Creative
50% of people reported feeling Creative
🤗Euphoric
40% of people reported feeling Euphoric
🧠Focused
35% of people reported feeling Focused
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Best For

✦ Anytime
✦ Depression
✦ Pain
✦ Stress

Strain Type

Indica 20%Sativa 70%

Strain Data Sheet

🧬THC18% - 23% (Medium-High)
🌿LineageWhite Moonshine × Blue Dream
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestSept – Nov, S. hemisphere (typical)
📏HeightSmall (0-120 cm)
⚖️YieldHigh
🏠Yield Indoor400-600 g/m2
🌳Yield Outdoor350g per plant
⏱Flowering Time55-65 days

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 are responsible for complying with the law where they live.
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White Nightmare Feminised
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🛡️Aluminium interior lining
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🔢Scratchable serial number

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White Nightmare 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
BX2
Generations
3+
Breeding Programme
Two-Generation Backcross Programme — recurrent-parent fixing
Stabilisation Notes — What This Means for Your Grow

A modern modern hybrid hybrid carrying at least one clone-only parent. BX2 is the right stabilisation point: two rounds of backcross fix the parent-cut traits without narrowing the population too far.

Breeding Goal

Pin the high-energy terpene expression that came out of the original White Nightmare cross.

Selection Focus

Chosen for vigour, manageable stretch and the cerebral terpene profile sativa growers buy this strain for.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

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