
Corkscrew Feminised
Corkscrew Feminised cannabis seeds for Irish growers. Hybrid strain · 19% THC · euphoric, creative, calm. 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 2026-09-16 on 150 seeds at 21-24°C.
About Corkscrew Feminised
Corkscrew carries caryophyllene as its lead note: peppercorn and warm timber, dry rather than sweet, catching slightly at the back of the throat. Limonene sits beneath it and shows up second, sharp enough to stop the whole thing turning heavy. The plant tests at 19% THC across a 57/43 split, though what decides whether any of this reaches the jar is the cure, not the seed.
Growing it for aroma
Growing Corkscrew for terpene expression and growing it for weight are not the same project, and it is worth deciding which one you are on. The Caryophyllene/Limonene/Myrcene 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 caryophyllene comes forward, while a warmer finish protects the lighter myrcene 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 limonene layer arrives somewhere in weeks three and four, not before.
Flowering: 8–10 weeks. Indoor yield: 150–250 g/m². Outdoor yield: 250–450 g/plant. Plant height: 170–210 cm. Rated easy difficulty.
Flavour, aroma and effect
Corkscrew arrives in order. The first draw at 19% THC gives peppercorn heat that lands at the back of the throat. The euphoric, creative, calm character follows in minutes, as head and body together. Thinking stays clear while the muscles let go by degrees, which is what makes the dose, rather than the genetics, the thing that decides the evening. Limonene underneath contributes a lift that stops it going heavy.
Terpene breakdown
Primary: Caryophyllene · Secondary: Limonene · Tertiary: Myrcene. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps limonene and myrcene audible over the caryophyllene; 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 Corkscrew? 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.
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Corkscrew 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.
Corkscrew runs through our F4 programme. Four cycles of phenotype selection have removed the worst of the trait variation; what is left is a tight, predictable population for production.
Carry Corkscrew from F1 cross to F4 production-ready seed stock.
Chosen for terpene profile, vigour, structure and finish-time consistency.
Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.