Big Bang cannabis seeds packaging — Royal King Seeds UK
Hybrid
THC 20%
🎨 Creative
HybridFeminisedIn Stock

Big Bang Feminised

Feminised PhotoperiodSee Lab Report →

Big Bang Feminised cannabis seeds for UK growers. Hybrid · 20% THC · creative, calm. Discreet UK delivery, priced in GBP.

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£12.53
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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 2026-09-08 on 150 seeds.

Germination rate: 99.2% (n=150)
Last QC test date: 2026-09-08
Indoor yield: 410-566 g/m² (avg across 6 verified grower reports)
Outdoor yield: 492-678 g/plant (avg across 9 verified grower reports)

About Big Bang Feminised

Read Big Bang backwards from the harvest: up to 800 g/m2 under lights, up to 1000 g/plant outdoors, with resin filling out towards 20% THC. Weight goes on evenly across the 8-9 weeks (9 weeks full range, commercially ready in 8) of bloom, with a clear surge in the last two weeks that rewards leaving the plant alone. The 46/54 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 limonene arrive.

Getting the weight out of this plant

Three stretches of the 8-9 weeks (9 weeks full range, commercially ready in 8) of bloom decide whether you reach the top of this strain's range (up to 800 g/m2 indoors, up to 1000 g/plant 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. Limonene 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: 8-9 weeks (9 weeks full range, commercially ready in 8). Indoor yield: up to 800 g/m2. Outdoor yield: up to 1000 g/plant. Rated intermediate difficulty.

Flavour, aroma and effect

Big Bang arrives in stages. The first draw at 20% THC brings a bright citrus edge that lifts off the palate immediately. The creative, calm character follows within minutes, as a head and body effect at once. The mind stays clear while the muscles let go by degrees, which is what makes it adaptable — a small dose carries an afternoon, a larger one turns into an evening. The caryophyllene underneath adds a warmth that keeps the whole thing anchored.

Terpene breakdown

Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. 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. Limonene anchors the aroma, caryophyllene occupies the middle, and linalool sits behind both — which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Who does well with Big Bang? 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

🤩Creative
77% of people reported feeling Creative
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😊Happy
51% of people reported feeling Happy
🤗Euphoric
47% of people reported feeling Euphoric
😎Uplifted
38% of people reported feeling Uplifted
🤤Hungry
34% of people reported feeling Hungry
😴Sleepy
31% of people reported feeling Sleepy
😆Giggly
24% of people reported feeling Giggly

Strain Type

Indica 46%Sativa 54%

Strain Data Sheet

🧬THC20% - 25% (High)
🌿LineageBalanced Hybrid (Undisclosed Lineage)
🔬TypeFeminised Hybrid
🌡ClimateTemperate, adaptable
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height100 – 160 cm (typical)
⚖️YieldHigh
🏠Yield Indoorup to 800 g/m2
🌳Yield Outdoorup to 1000 g/plant
⏱Flowering Time8-9 weeks (9 weeks full range, commercially ready in 8)

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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Big Bang Feminised
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💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
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🔢Scratchable serial number

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Big Bang 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
F4
Generations
4+
Breeding Programme
Royal King Genetics Filial Programme — four-generation pheno fixing
Stabilisation Notes — What This Means for Your Grow

Big Bang runs through our F4 programme. Four cycles of phenotype selection have removed the worst of the trait variation; what is left is a tight, predictable population for production.

Breeding Goal

Carry Big Bang from F1 cross to F4 production-ready seed stock.

Selection Focus

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

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

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