
Lethal Purple Feminised
Grow Lethal Purple Feminised in Ireland. Hybrid genetics testing at 20% THC. Known for relaxed, happy, euphoric effects. Ships discreetly nationwide with 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 2026-09-08 on 375 seeds at 21-24°C.
About Lethal Purple Feminised
Lethal Purple carries limonene as its lead note: citrus with bitterness behind it, closer to marmalade peel than to lemonade. Caryophyllene sits beneath it and shows up second, dry and peppery, holding the sweeter notes down. The plant tests at 20% THC across a 38/62 split, though what decides whether any of this reaches the jar is the cure, not the seed.
Growing it for aroma
Growing Lethal Purple 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/Caryophyllene/Linalool 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 linalool 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 caryophyllene layer arrives somewhere in weeks three and four, not before.
Flowering: 45 – 55 days. Indoor yield: up to 450 g/m2. Outdoor yield: up to 450 g/plant. Plant height: Tall. Rated intermediate difficulty.
Flavour, aroma and effect
Lethal Purple arrives in order. The first draw at 20% THC gives citrus with a bitter edge that lifts off the palate. The relaxed, happy, euphoric 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. Caryophyllene underneath contributes warmth that keeps it anchored.
Terpene breakdown
Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps caryophyllene and linalool 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 Lethal Purple? 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 intermediate, which means a moderate learning curve that rewards attention without needing specialist kit.
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Lethal Purple 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.
Lethal Purple carries clone-derived parents from the mid-2010s. We backcrossed twice to the dominant parent (BX2) to weld cut-specific traits into seed-stable form. Vigour and finish-time consistency run uniform across the population.
Pin the finish-time consistency that came out of the original Lethal Purple cross.
Chosen for balanced indica/sativa expression, terpene fidelity and pack-to-pack uniformity.
Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.