
X-Files Feminised
X-Files Feminised — hybrid cannabis seeds suited to UK growing conditions. 22% THC with relaxed, happy, euphoric effects. Fast, discreet UK delivery.
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 2026-09-13 on 275 seeds.
About X-Files Feminised
Read X-Files backwards from the harvest: Up to 300g/m² under lights, Up to 400 gr outdoors, with resin filling out towards 22% THC. Weight goes on evenly across the 63-70 days of bloom, with a clear surge in the last two weeks that rewards leaving the plant alone. The 42/58 split gives you calyx density and an even spread of resin rather than one at the cost of the other. Outdoors, late September to mid-October is the window that misses the wettest of the finish across most of the country while still letting the myrcene arrive.
Getting the weight out of this plant
Three stretches of the 63-70 days of bloom decide whether you reach the top of this strain's range (Up to 300g/m² indoors, Up to 400 gr outdoors). The rest is maintenance.
The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. Somewhere around a third is typical. One pass of low-stress training over the tallest shoots keeps the top flat.
Weeks three to five. Myrcene production climbs through here, and it responds to a day-night temperature gap of 6-8°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26°C lights-on and 18-20°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.
The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe — cut at 10-15% amber for the middle of the range. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.
Flowering: 63-70 days. Indoor yield: Up to 300g/m². Outdoor yield: Up to 400 gr. Rated intermediate difficulty.
What X-Files is actually like
Growers report relaxed, happy, euphoric as the defining characteristics and our own notes agree. At 22% THC this hybrid sits where the balance is the selling point. Taken small it stays functional; taken larger it relaxes properly. The ${indica}/${sativa} split means the direction is set by how much you take rather than fixed by the genetics. The Myrcene/Limonene pairing leaves earth and faint sweetness on the palate, with fruit at the end.
Best suited to most occasions — the dose does the steering.
Terpene breakdown
Primary: Myrcene · Secondary: Limonene · Tertiary: Pinene. How this profile survives the journey from flower to vapour depends on temperature. Low vaporisation, 180-188°C, keeps the limonene and pinene audible over the myrcene 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
X-Files suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for bigger plants, or flip early when space is short. The April to October season accommodates a bloom of 63-70 days comfortably for outdoor growers across the country.
Effects
Strain Type
Strain Data Sheet
Packaging
Feminised Premium
Seeds
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X-Files 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.
X-Files has been progressed through four generations of phenotype hunting and selection. Vigour, trichome production and finishing time are all locked across the pack — every plant performs to the spec sheet.
Pin trichome production consistency across the X-Files population.
Chosen for terpene profile, vigour, structure and finish-time consistency.
Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.