
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.
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.
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
Best For
Strain Type
Strain Data Sheet
Packaging
Feminised Premium
Seeds
authenticity
lining
number
Related Strains

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

Alpha Blue Feminised
Grow Alpha Blue Feminised in Ireland. Sativa genetics testing at 20% THC. Known for happy, energetic, creative effects. Ships discreetly nationwide with sourced grow figures.

Green Dream Feminised
Grow Green Dream Feminised in Ireland. Sativa genetics testing at 21% THC. Known for relaxed, euphoric, creative effects. Ships discreetly nationwide with sourced grow figures.

Project Blue Book Feminised
Order Project Blue Book Feminised seeds online in Ireland. A quality sativa cultivar at 20% THC delivering happy, energetic, creative. Chosen for a short season and a damp finish. Fast shipping and a germination guarantee.
White Nightmare Feminised — Breeder Information
Royal King GeneticsBred 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.
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.
Pin the high-energy terpene expression that came out of the original White Nightmare cross.
Chosen for vigour, manageable stretch and the cerebral terpene profile sativa growers buy this strain for.
Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.