Sensi Star cannabis seeds packaging — Royal King Seeds UK
Indica
THC 24%
🌙 Sleep Aid
IndicaFeminisedIn Stock

Sensi Star Feminised

Feminised PhotoperiodSee Lab Report →

Grow Sensi Star Feminised in the UK. Indica genetics at 24% THC, known for happy, relaxed, sleepy effects.

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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 2026-09-14 on 475 seeds.

Germination rate: 97.4% (n=475)
Last QC test date: 2026-09-14
Indoor yield: 486-644 g/m² (avg across 14 verified grower reports)
Outdoor yield: 470-816 g/plant (avg across 9 verified grower reports)

About Sensi Star Feminised

Cured properly and opened cold, Sensi Star leads with caryophyllene: dry black pepper that catches at the back of the throat, clove and warm wood underneath it. Underneath it myrcene adds depth and weight low down in the profile, and it reads mid-palate rather than on the first pass. This 75/25 indica tests at 24% THC, but potency is the least interesting number here: what separates Sensi Star from the others on the same shelf is how the aroma behaves across a cure, and that is a question of storage and patience rather than genetics alone.

Growing it for the nose rather than the scales

Chasing terpene expression in Sensi Star pulls against chasing yield, and it is worth knowing which one you are doing before you start. The Caryophyllene/Myrcene/Bisabolol profile does its best work in living soil, where the microbial side produces secondary compounds a bottle cannot. That is easier here than it sounds: decent peat-free compost and worm castings are a garden centre purchase in most British towns.

Through the 55-60 days of bloom, stop foliar spraying after week two — anything landing on developing trichomes is still there at harvest and you will taste it. The final three weeks decide which terpenes dominate the cured flower: nights held at 16-18°C push caryophyllene forward, while a warmer finish protects the lighter bisabolol notes at the top.

The cure is where most of the flavour is lost in this country, and the reason is the weather. A 10-14 day hang wants 15-18°C at 55-60% relative humidity, which a British autumn will not give you in a spare room — a temperature-controlled cupboard or a wine fridge set to 16°C solves it for the price of one wasted harvest. Then into glass, burped twice a day for the first fortnight. The myrcene layer that makes this one worth growing does not appear until somewhere between weeks three and four in the jar.

Flowering: 55-60 days. Indoor yield: 400-450 g/m2. Outdoor yield: 600 g/plant. Rated intermediate difficulty.

Flavour, aroma and effect

Sensi Star arrives in stages. The first draw at 24% THC brings dry pepper that registers at the back of the throat. The happy, relaxed, sleepy character follows within minutes, starting as weight behind the eyes and working down through the shoulders and chest. By about a quarter of an hour it has become a physical stillness — not sedation so much as a strong disinclination to get up. Two to three hours at a moderate dose. The myrcene underneath adds body and depth beneath the rest.

Terpene breakdown

Primary: Caryophyllene · Secondary: Myrcene · Tertiary: Bisabolol. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the myrcene and bisabolol audible over the caryophyllene 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 Sensi Star? 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

😊Happy
72% of people reported feeling Happy
😌Relaxed
65% of people reported feeling Relaxed
😴Sleepy
65% of people reported feeling Sleepy
🤤Hungry
54% of people reported feeling Hungry
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Strain Type

Indica 75%Sativa 25%

Strain Data Sheet

🧬THC24% - 29% (High)
🌿LineageIndica-Dominant Hybrid (Undisclosed Lineage)
🔬TypeFeminised Indica
🌡ClimateCool–temperate / continental
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height90 – 120 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400-450 g/m2
🌳Yield Outdoor600 g/plant
⏱Flowering Time55-60 days

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised 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 United Kingdom legislation.
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Sensi Star Feminised
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Sensi Star Feminised — Breeder Information

Royal King Genetics

Bred 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.

Stabilisation Level
F3
Generations
3+
Breeding Programme
Filial Stabilisation (F3) — advanced refinement
Stabilisation Notes — What This Means for Your Grow

F3 stabilisation on the Sensi Star cross. Three rounds of selection have brought the population to roughly 80% trait homogeneity — a small fraction of pheno variance is still present and is being culled in the next cycle.

Breeding Goal

Stabilise Sensi Star across three rounds toward F4 production-ready stock.

Selection Focus

Chosen for trichome coverage, stout structure and consistent flowering time across the pack.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
6 September 2026· 99%+ germination