Sister Glue cannabis seeds packaging — Royal King Seeds the UK
Hybrid
THC 21%
📈 High Yield
HybridFeminizedIn Stock

Sister Glue Feminized

Feminized PhotoperiodSee Lab Report →

Sister Glue Feminized — premium hybrid cannabis seeds suited to UK growing conditions. 21% THC with happy, euphoric effects. Discreet delivery across the UK. Germination guaranteed.

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About Sister Glue Feminized

Where you grow Sister Glue 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 — 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 8-9 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 Sister Glue can be grown anywhere in the country on its merits.

UK growers face a fairly consistent set of pressures. Damp late season: botrytis in dense flower from September is the main risk — favour open bud structure and keep airflow moving. Indoors: spider mite and thrips are the usual arrivals; humidity above 60% in late bloom is what turns a small problem into a lost crop. Slugs take seedlings outdoors in a wet spring more reliably than any insect.

What to Expect When Using Sister Glue

UK customers report happy, euphoric as the defining characteristics, and our experience aligns with that consensus. At 21% 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 — warm and spiced, drying slightly on the exhale.

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

Terpene Breakdown

Primary: Caryophyllene · Secondary: Myrcene · 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

Sister Glue suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar — 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 — extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The UK growing season (October through April) accommodates the 8-9 weeks bloom period comfortably for outdoor cultivators in all states. Shipped discreetly across the UK with our germination guarantee.

Effects

😊Happy
72% of people reported feeling Happy
🤗Euphoric
67% of people reported feeling Euphoric
😌Relaxed
58% of people reported feeling Relaxed
🤩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
😆Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Strain Type

Indica 47%Sativa 53%

Strain Data Sheet

🧬THC21% - 24% (High)
🌿LineageChem's Sister × Sour Dubble × Chocolate Diesel
🔬TypeFeminized Hybrid
🌡ClimateTemperate, adaptable
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height100 – 160 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 – 500 g/m² (typical)
🌳Yield Outdoor400 – 600 g/plant (typical)
Flowering Time8-9 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.
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Sister Glue Feminized
royalkingseeds.co.uk
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Sister Glue Feminized — 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
F3
Generations
3+
Breeding Programme
F3 Refinement Programme — three-generation selection
Stabilisation Notes — What This Means for Your Grow

Sister Glue sits in advanced filial refinement (F3). Trait expression is consistent across the pack with the minor pheno-to-pheno variation that is typical at this stage. Active selection continues toward F4.

Breeding Goal

Stabilise Sister Glue across three rounds toward F4 production-ready stock.

Selection Focus

Chosen for vigour, terpene saturation and a tight finish window that allows production planning.

Pollen / Mother Source

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

Last Batch QC Verified
10 August 2026· 99%+ germination