
LSD Feminised
Grow LSD Feminised in the UK. Hybrid genetics at 23% THC, known for euphoric, creative, focused effects.
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 2026-09-20 on 150 seeds.
About LSD Feminised
Germination and early veg, days 1-14. LSD seeds generally crack inside 48 hours on damp kitchen roll and break the surface around day three. Early growth came in even and unhurried, neither racing nor sulking. Four solid nodes by day 14 with the spacing that hints at the hybrid frame to come. Damping off is rare around 70% relative humidity, which is also roughly what an unheated British room sits at in spring.
Veg, weeks 3-6. It took a simple top-and-tie approach well. Topping at node four gave six strong leaders, tied down gently, and an even canopy across a 70cm square by the flip.
Bloom, weeks 1-9. This is where the 49/51 balance in LSD showed itself. The limonene came up in week three and kept building; trichome cover was obvious to the naked eye from week five. Indoor yield: 550-650 gr/m2. Height: 90-110 cm. THC testing at 23%. Rated intermediate.
The rest of the diary
Mid-bloom, weeks 4-6. The change came quickly. Sites that were loose and wispy at week three closed into defined colas. Development stayed even across the whole canopy, which is what the veg training bought — eight comparable colas instead of one dominant top and a handful of also-rans. Resin was visible to the naked eye from week four.
Ripening, weeks 7-9. Feeding dropped to plain water for the last ten days. The limonene got strong enough that carbon filtration stopped being optional in a terraced house. Trichomes ran clear to milky across the final fortnight, amber showing on sugar leaves first. Around 15% amber on the calyxes is a common place to stop.
Drying and curing. Whole plant hung in the dark at 17°C and 58% humidity for twelve days — both numbers held by a dehumidifier, because an October room in this country will not hold either on its own. Stems snapped rather than bent, which is the test worth trusting. Four weeks in glass followed, burped twice daily for the first fortnight and once daily after. Final weight matched the 550-650 gr/m2 figure. The caryophyllene was far more present after the cure than at harvest, which is the argument for curing properly: the process makes flavour rather than merely keeping it.
Flowering: 60-65 days. Indoor yield: 550-650 gr/m2. Outdoor yield: 800 gr/plant. Plant height: 90-110 cm. Rated intermediate difficulty. Feminised seeds.
Flavour, aroma and effect
LSD arrives in stages. The first draw at 23% THC brings a bright citrus edge that lifts off the palate immediately. The euphoric, creative, focused, calm character follows within minutes, as a head and body effect at once. The mind stays clear while the muscles let go by degrees, which is what makes it adaptable — a small dose carries an afternoon, a larger one turns into an evening. The caryophyllene underneath adds a warmth that keeps the whole thing anchored.
Terpene breakdown
Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the caryophyllene and linalool audible over the limonene base. Run it hotter, or burn it, and the three collapse into one note — pleasant enough, but none of the complexity that made it worth choosing.
Who it suits
Who does well with LSD? 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
Strain Type
Strain Data Sheet
Packaging
Feminised Premium
Seeds
authenticity
lining
number
Related Strains

American Strains Pack
Grow American Strains Pack in the UK. Hybrid genetics at 22% THC, known for energizing, happy, creative effects.

Charlie Sheen Auto
Charlie Sheen Auto seeds. A hybrid cultivar at 19% THC delivering euphoric, happy, relaxed. Grow figures from named sources.

OG Chem Feminised
OG Chem Feminised — sativa cannabis seeds suited to UK growing conditions. 20% THC with euphoric, happy, uplifted effects. Fast, discreet UK delivery.

Marcosus Marshmellow Feminised
Grow Marcosus Marshmellow Feminised in the UK. Indica genetics at 14% THC, known for euphoric, creative, focused effects.
LSD 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 recent-era 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.
Stabilise the LSD cross into a seed-uniform line.
Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.
Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.