RK
Rocklock cannabis seeds packaging β€” Royal King Seeds the UK
Hybrid
THC 24%
πŸ“ˆ High Yield
HybridFeminizedIn Stock

Rocklock Feminized

Feminized PhotoperiodSee Lab Report β†’

Rocklock Feminized seeds. A hybrid cultivar at 24% THC delivering relaxed, happy, euphoric. Grow figures from named sources.

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Β£10.98
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About Rocklock Feminized

Where you grow Rocklock in the UK matters, but less than when. Britain has one temperate maritime climate and a real north-south gradient: the south coast runs a season roughly a fortnight longer at each end than Scotland and upland Wales. Outdoors the limiting factor is not heat, it is the wet finish β€” September and October rain sitting on dense flower is what starts botrytis, and it is the most common reason a UK outdoor crop is lost. That makes the 8 weeks flowering window and bud structure the two figures worth checking before anything else. Indoors none of it applies: you set the daylength, the temperature and the humidity, and Rocklock can be grown anywhere in the country on its merits.

UK growers face a fairly consistent set of pressures. The damp late season is the main one: botrytis in dense flower from September onwards, which is best answered with open bud structure and steady airflow rather than treatment. Indoors, spider mite and thrips are the usual arrivals, and humidity above 60% in late bloom is what turns a small problem into a lost crop. Outdoors in a wet spring, slugs take more seedlings than any insect.

What to Expect When Using Rocklock

UK customers report relaxed, happy, euphoric as the defining characteristics, and our experience aligns with that consensus. At 24% THC, this hybrid sits in a potency bracket where versatility is the main advantage. Morning users report functional clarity at lower doses. Evening users report satisfying relaxation at higher doses. The ${indica}/${sativa} balance means the dominant effect direction shifts with consumption amount rather than being locked into a single character. The Caryophyllene/Myrcene terpene combination imparts a flavour that lingers on the palate β€” warm and spiced, drying slightly on the exhale.

Ideal settings: adaptable across occasions β€” adjust dose to match the energy level your situation calls for.

Terpene Breakdown

Primary: Caryophyllene Β· Secondary: Myrcene Β· Tertiary: Humulene. This particular terpene trio appears frequently in award-winning cultivars and produces a nose that most UK growers find immediately appealing when jars are first opened after curing. The caryophyllene dominance anchors the aroma, myrcene provides mid-range character, and humulene contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.

Suitability and Recommendations

Rocklock suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar β€” it will not hold your hand, but it will not punish minor mistakes harshly either. Photoperiod genetics give you complete control over plant size and harvest timing β€” extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The UK growing season (April through October) accommodates the 8 weeks bloom period comfortably for outdoor cultivators across the country. Shipped discreetly across the UK with our germination guarantee.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😊Happy
65% of people reported feeling Happy
πŸ€—Euphoric
60% of people reported feeling Euphoric
🀩Creative
56% of people reported feeling Creative
😎Uplifted
45% of people reported feeling Uplifted
🀀Hungry
41% of people reported feeling Hungry
😴Sleepy
38% of people reported feeling Sleepy
πŸ˜†Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Strain Type

Indica 48%Sativa 52%

Strain Data Sheet

🧬THC24% - 27% (High)
🌿LineageWarlock Γ— Rockstar
πŸ”¬TypeFeminized Hybrid
🌑ClimateTemperate, adaptable
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height100 – 160 cm (typical)
βš–οΈYieldHigh
🏠Yield Indoor500-600 g/m2
🌳Yield Outdoor400 – 600 g/plant (typical)
⏱Flowering Time8 weeks

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
Rocklock 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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Rocklock 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
F4
Generations
4+
Breeding Programme
F4 Production Line β€” modern cross stabilisation
Stabilisation Notes β€” What This Means for Your Grow

F4 stabilisation on Rocklock. Each generation we cull aggressively against off-types β€” the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Pin trichome production consistency across the Rocklock population.

Selection Focus

Chosen for balanced indica/sativa expression, terpene fidelity and pack-to-pack uniformity.

Pollen / Mother Source

Royal King Genetics select-mother programme β€” pollen drawn from an internally maintained reversed-female line.

Last Batch QC Verified
24 April 2026Β· 99%+ germination