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Double Bubble cannabis seeds packaging β€” Royal King Seeds UK
Hybrid
THC 22%
πŸŒ™ Sleep Aid
HybridFeminisedIn Stock

Double Bubble Feminised

Feminised PhotoperiodSee Lab Report β†’

Double Bubble Feminised seeds. A hybrid cultivar at 22% THC delivering relaxed, focused, calm. Grow figures from named sources.

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Β£9.78
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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 2026-09-21 on 125 seeds.

Germination rate: 98.2% (n=125)
Last QC test date: 2026-09-21
Indoor yield: 415-542 g/mΒ² (avg across 15 verified grower reports)
Outdoor yield: 645-940 g/plant (avg across 6 verified grower reports)

About Double Bubble Feminised

Where you grow Double Bubble 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 61 days 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 Double Bubble 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 Double Bubble is actually like

Growers report relaxed, focused, calm 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 β€” the dose does the steering.

Terpene breakdown

Primary: Myrcene Β· Secondary: Limonene Β· Tertiary: Pinene. 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. Myrcene anchors the aroma, limonene occupies the middle, and pinene sits behind both β€” which is the part that separates this strain from others sharing its primary terpene.

Who it suits

Double Bubble 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 61 days comfortably for outdoor growers across the country.

Effects

😌Relaxed
72% of people reported feeling Relaxed
🧠Focused
69% of people reported feeling Focused
🧘Calm
60% of people reported feeling Calm
😊Happy
51% of people reported feeling Happy
🀩Creative
50% of people reported feeling Creative
πŸ€—Euphoric
40% of people reported feeling Euphoric
😎Uplifted
31% of people reported feeling Uplifted
🀀Hungry
27% of people reported feeling Hungry
😴Sleepy
24% of people reported feeling Sleepy

Strain Type

Indica 45%Sativa 55%

Strain Data Sheet

🧬THC22% - 26% (High)
🌿LineageBalanced Hybrid (Undisclosed Lineage)
πŸ”¬TypeFeminised Hybrid
🌑ClimateTemperate, adaptable
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height100 – 160 cm (typical)
βš–οΈYieldTypical for type
🏠Yield Indoor30-60 g/plant
🌳Yield Outdoor350–550 g/plant
⏱Flowering Time61 days

Packaging

Resealable +
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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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Double Bubble Feminised
royalkingseeds.co.uk
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πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
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πŸ“±QR code verification
πŸ”’Scratchable serial number

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Double Bubble 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
BX2
Generations
3+
Breeding Programme
Royal King Genetics Backcross Line β€” BX2 modern hybrid stabilisation
Stabilisation Notes β€” What This Means for Your Grow

Backcrossed twice to the dominant parental line. Double Bubble now expresses structural balance consistently across the population β€” what made the original cross interesting is preserved without the pheno-roulette of an unstabilised F1.

Breeding Goal

Carry a clone-derived recent-era hybrid through to a stable seed pack.

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
4 September 2026Β· 99%+ germination