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

Rocklock Feminised

Feminised PhotoperiodSee Lab Report β†’

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

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Royal King Genetics β€” 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 2026-09-04 on 225 seeds.

Germination rate: 97.7% (n=225)
Last QC test date: 2026-09-04
Indoor yield: 421-562 g/mΒ² (avg across 9 verified grower reports)
Outdoor yield: 663-984 g/plant (avg across 4 verified grower reports)

About Rocklock Feminised

Where you grow Rocklock in Britain matters less than when you start it. This is one temperate maritime climate with a real north-south gradient: the south coast opens and closes its season around a fortnight either side of the central belt or upland Wales. Heat is almost never the constraint here. The wet finish is β€” rain sitting in dense flower through late September and October is what starts botrytis, and it ends more British outdoor crops than every insect on the plot combined. That puts the 8 weeks flowering window and the bud structure ahead of everything else on this page. Under lights none of it applies: daylength, temperature and humidity are yours to set, and Rocklock can be run anywhere in the country on its merits.

The pressures on a British grow are fairly predictable. Damp is the first of them: botrytis in dense flower from September on, answered with open bud structure and moving air rather than with a spray. Indoors it is spider mite and thrips that arrive, and humidity above 60% in late bloom is what turns a contained problem into a lost room. Outdoors in a wet spring the slugs take more seedlings than every insect put together, and they do it overnight.

What Rocklock is actually like

Growers report relaxed, happy, euphoric as the defining characteristics and our own notes agree. At 24% 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 Caryophyllene/Myrcene pairing leaves warmth and spice that dries slightly on the exhale.

Best suited to most occasions β€” the dose does the steering.

Terpene breakdown

Primary: Caryophyllene Β· Secondary: Myrcene Β· Tertiary: Humulene. This combination turns up often in cultivars that win things, and it is usually the one growers comment on when a jar is opened for the first time after curing. Caryophyllene anchors the aroma, myrcene occupies the middle, and humulene sits behind both β€” which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Rocklock 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 β€” veg longer for bigger plants, or flip early when space is short. The April to October season accommodates a bloom of 8 weeks comfortably for outdoor growers across the country.

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)
🌿LineageBalanced Hybrid (Undisclosed Lineage)
πŸ”¬TypeFeminised Hybrid
🌑ClimateTemperate, adaptable
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height100 – 160 cm (typical)
βš–οΈYieldHigh
🏠Yield Indoor500-600 g/m2
🌳Yield Outdoor450–650 g/plant
⏱Flowering Time8 weeks

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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Rocklock Feminised
royalkingseeds.co.uk
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πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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Rocklock Feminised 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
10 September 2026Β· 99%+ germination