RK
LSD cannabis seeds packaging β€” Royal King Seeds the UK
Hybrid
THC 23%
🎨 Creative
HybridFeminizedIn Stock

LSD Feminized

Feminized PhotoperiodSee Lab Report β†’

Grow LSD Feminized in the UK. Hybrid genetics at 23% THC, known for euphoric, creative, focused effects.

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Β£10.16
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About LSD Feminized

Germination & Early Veg (Days 1-14): LSD seeds typically crack within 48 hours using the damp paper towel method and break soil by around day 3. Early growth was steady and symmetrical β€” neither racing ahead nor lagging behind. Four well-developed nodes by day 14 with balanced internodal distance that hinted at the hybrid structure to come. Damping off is uncommon at around 70% relative humidity during this phase.

Vegetative Growth (Weeks 3-6): Responded beautifully to a simple top-and-train approach. Topping at node 4 produced six strong lateral leaders that we tied down gently, resulting in an even canopy across a 70cm x 70cm area by the time we flipped.

Flower (Weeks 1-65): This is where the 49/51 genetics of LSD truly revealed itself. The limonene aroma appeared in week 3 of flower and intensified steadily. Trichome coverage became visually striking from week 5 onward. Final indoor yield: 550-650 gr/m2. Plant height: 90-110 cm. THC testing at 23%. Difficulty rating: intermediate.

Continuing the Grow Diary

Mid-Flower (Weeks 4-6): The transformation accelerated dramatically. Bud sites that were wispy clusters at week 3 swelled into properly defined colas. Balanced development across all bud sites. The canopy we established during veg paid dividends now β€” eight equally developed colas rather than one dominant top and a collection of lesser branches. Trichome production was visible to the naked eye from week 4 onward.

Late Flower and Ripening (Weeks 63-65): Nutrient input dropped to plain water with a splash of molasses for the final 10 days. The limonene aroma became powerful enough that carbon filtration was essential β€” our neighbours would have noticed otherwise. Trichomes progressed from clear to milky across the final fortnight, with amber heads appearing on sugar leaves first. A common harvest window is around 15% amber on the calyxes.

Dry and Cure (Post-Harvest): Whole-plant hang dry in a darkened room at 17Β°C and 58% humidity for 12 days. Stems snapped cleanly rather than bending, confirming the moisture content was appropriate for jarring. After 4 weeks of glass jar curing with twice-daily burping (first 2 weeks) then daily burping (weeks 3-4), the bouquet fully developed. Final weight confirmed the 550-650 gr/m2 yield estimate. The caryophyllene secondary terpene became far more pronounced after curing than it was at harvest β€” a reminder that the drying and curing process genuinely creates flavour rather than merely preserving 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 Experience

The sensory arc of LSD unfolds in stages. Initial inhalation at 23% THC brings a bright, almost sparkling citrus note that lifts the palate. The euphoric, creative, focused, calm effects emerge within minutes, presenting as a simultaneous head-and-body experience. Mental clarity remains intact whilst the muscles release tension progressively. This dual action makes it adaptable β€” a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.

Terpene Breakdown

Primary: Limonene Β· Secondary: Caryophyllene Β· Tertiary: Linalool. Flavour translation from flower to vapour and smoke differs with this terpene combination. Low-temperature vaporisation (180-188Β°C) highlights the caryophyllene and linalool notes whilst keeping limonene as a foundation. Higher temperatures or combustion flatten the profile into a single-note experience β€” still pleasant, but lacking the complexity that makes this cultivar genuinely interesting to those who appreciate flavour.

Suitability and Recommendations

Who grows LSD successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered UK-wide in discreet, unbranded packaging with germination guarantee included.

Effects

πŸ€—Euphoric
74% of people reported feeling Euphoric
🀩Creative
70% of people reported feeling Creative
🧠Focused
62% of people reported feeling Focused
🧘Calm
53% of people reported feeling Calm
😌Relaxed
45% of people reported feeling Relaxed
😊Happy
38% of people reported feeling Happy
😎Uplifted
31% of people reported feeling Uplifted
🀀Hungry
27% of people reported feeling Hungry
😴Sleepy
24% of people reported feeling Sleepy

Strain Type

Indica 49%Sativa 51%

Strain Data Sheet

🧬THC23% - 26% (High)
🌿LineageMazar-I-Sharif Γ— Skunk #1
πŸ”¬TypeFeminized Hybrid
🌑ClimateTemperate, adaptable
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height90-110 cm
βš–οΈYieldTypical for type
🏠Yield Indoor550-650 gr/m2
🌳Yield Outdoor800 gr/plant
⏱Flowering Time60-65 days

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable UK Commonwealth, state, and territory legislation.
1
LSD Feminized
royalkingseeds.co.uk
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πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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LSD Feminized β€” Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics β€” 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 β€” recurrent-parent fixing
Stabilisation Notes β€” What This Means for Your Grow

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.

Breeding Goal

Stabilise the LSD cross into a seed-uniform line.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

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

Last Batch QC Verified
4 February 2026Β· 99%+ germination