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Critical 47 cannabis seeds packaging β€” Royal King Seeds the UK
Hybrid
THC 20%
🎨 Creative
HybridFeminizedIn Stock

Critical 47 Feminized

Feminized PhotoperiodSee Lab Report β†’

Grow Critical 47 Feminized in the UK. Hybrid genetics at 20% THC, known for euphoric, creative, calm effects.

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Β£9.76
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About Critical 47 Feminized

Here is what Critical 47 delivers at harvest: 400g/mΒ² per square metre indoors, 500g/plant per plant outdoors in UK conditions, with resin production peaking at 20% THC. Those numbers tell a story when you work backwards through the 50-60 days window. Weight distribution across the 50-60 days cycle is pleasingly even, with a noticeable surge in the closing two weeks that rewards growers who resist harvesting prematurely. The 58/42 balance means you get both calyx stacking density and respectable trichome spread. For outdoor UK customers, the ideal harvest window lands between late September and mid-October β€” early enough to dodge the wet autumn finish in most regions, late enough to capture the full limonene terpene development.

Maximising Your Harvest

To reach the upper end of this strain's yield potential (400g/mΒ² indoors, 500g/plant outdoors), focus your efforts on three critical windows during the 50-60 days period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Moderate 30-40% stretch is typical. One round of low-stress training on the tallest shoots keeps everything level.

Window 2: Weeks 3-5 of bloom. Limonene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8Β°C to encourage terpene accumulation β€” UK autumn evenings (September-October) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26Β°C during lights-on and 18-20Β°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.

Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe β€” harvest at 10-15% amber for a balanced effect. UK outdoor growers: this window typically falls from late September through mid-October.

Flowering: 50-60 days. Indoor yield: 400g/mΒ². Outdoor yield: 500g/plant. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Critical 47 unfolds in stages. Initial inhalation at 20% THC brings a bright, almost sparkling citrus note that lifts the palate. The euphoric, creative, 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 Critical 47 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
🧘Calm
60% of people reported feeling Calm
😌Relaxed
51% of people reported feeling Relaxed
😊Happy
45% of people reported feeling Happy
😎Uplifted
38% of people reported feeling Uplifted
🀀Hungry
34% of people reported feeling Hungry
😴Sleepy
31% of people reported feeling Sleepy
πŸ˜†Giggly
24% of people reported feeling Giggly

Strain Type

Indica 58%Sativa 42%

Strain Data Sheet

🧬THC20% - 24% (High)
🌿LineageCritical Mass Γ— AK-47
πŸ”¬TypeFeminized Hybrid
🌑ClimateTemperate, adaptable
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height100 – 160 cm (typical)
βš–οΈYieldMedium – High
🏠Yield Indoor400g/m²
🌳Yield Outdoor500g/plant
⏱Flowering Time50-60 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.
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Critical 47 Feminized
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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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Critical 47 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

The Critical 47 hybrid sits in the middle of the modern dispensary lineage. Two backcross rounds layered on top of the original cross have locked terpene fidelity and finish-time uniformity across the pack.

Breeding Goal

Stabilise the Critical 47 cross into a seed-uniform line.

Selection Focus

Chosen for terpene profile, vigour, structure and finish-time consistency.

Pollen / Mother Source

Royal King Genetics in-house mother stock β€” pollen taken from a sibling male drawn from the same selected pheno population.

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