Sister Glue cannabis seeds packaging — Royal King Seeds South Africa
Hybrid
THC 21%
📈 Big Harvest
HybridFeminisedIn Stock

Sister Glue Feminised

Sister Glue Feminised for South African growers — hybrid genetics at 21% THC, reported as happy, euphoric. Sourced grow figures on the page, plain packaging, delivered nationwide.

Select Pack Size
R194.63ZAR
1
🇿🇦Free South Africa Delivery
🌱Germination Cover
🔒Nothing on the Box

Royal King Genetics — Seed-Lot Testing

Figures below come from our own seed-lot testing rather than breeder marketing, taken from a single batch tested 2026-02-26 on 475 seeds.

Germination rate: 98.4% (n=475)
Last QC test date: 2026-02-26
Indoor yield: 405-554 g/m² (avg across 17 verified grower reports)
Outdoor yield: 635-928 g/plant (avg across 4 verified grower reports)

About Sister Glue Feminised

South Africa is really two growing countries, and Sister Glue does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 47/53 hybrid does its flowering while the air is still heavy; in the Western Cape the rain comes in winter, so the same plant ripens through a dry autumn instead. A 47/53 split travels better than either parent across a country running from subtropical coast to semi-desert. The canopy sits open enough to survive a humid KwaZulu-Natal autumn and dense enough to still look the part after a dry Karoo summer. At 21% THC with caryophyllene leading, what changes between a Johannesburg rooftop and a Cape smallholding is the schedule rather than the result.

Setting Up for South African Conditions

Outdoors, the province decides which problem you are actually solving.

KwaZulu-Natal and the subtropical coast. Humidity rather than heat is the limiting factor here. Whitefly and thrips peak from December through February, so introduce predatory mites (Phytoseiulus persimilis) before you see damage rather than after it. Airflow under the lower canopy matters more on this coast than anywhere else in the country.

The Highveld — Gauteng, Free State, North West. Frost closes the window at both ends. That suits a 8-9 weeks bloom, provided you start seeds under cover by early September and bank the vegetative growth before the December solstice. Above 1 400 m the ultraviolet index is high enough to push trichome production, but harden transplants off slowly or they bleach.

Western Cape. Flowering falls in the dry half of the year, which makes this the most forgiving outdoor condition in the country for Sister Glue — the mould pressure that shapes every other region never arrives. The south-easter is your problem instead: weeks of sustained summer wind through December and January will tear an unstaked plant apart.

Indoors the location stops mattering and the numbers take over. Through a summer sitting above 30°C ambient, run lights overnight on a 6pm-6am cycle and you sidestep most heat stress without paying for cooling. Hold humidity at 55-65% in veg and 40-50% once flowers set; EC 1.0-1.4 vegetative, 1.6-2.0 at peak bloom; pH between 5.8 and 6.3 depending on medium.

Difficulty: medium. In flower for 8-9 weeks. Stands Medium (150-245 cm). Indoors it returns Medium. Outdoors, Medium a plant.

What Sister Glue Is Like to Use

The effects most commonly reported for this cultivar are happy, euphoric. At 21% THC it sits in a bracket where flexibility is the point. Lower doses read clear and functional in the morning, higher doses read relaxed in the evening. Because the 47/53 split is even, direction is set by how much you take rather than fixed by the genetics. The Caryophyllene/Myrcene pairing leaves a warm spice that dries slightly on the exhale on the palate.

Where it fits: most occasions, with the dose adjusted to whatever the situation asks for.

The Aromatic Three

Leading with Caryophyllene, then Myrcene, and Humulene underneath. This trio turns up repeatedly in cultivars that win things, and it is why a jar of Sister Glue tends to get a reaction the first time it is opened after curing. Caryophyllene sets the anchor, myrcene fills the middle, and humulene sits in the background doing the work that separates this from every other strain built on the same primary terpene.

Suitability and Recommendations

Sister Glue is a reasonable fit for growers with the basics already in place. Understand pH, know roughly what nutrient ratios do, and be able to hold a light cycle — it will not carry you, but it does not punish the occasional slip either. Photoperiod genetics leave size and timing in your hands — hold it in veg for a bigger plant, or flip early when headroom is the constraint. A September-to-May outdoor season comfortably covers a 8-9 weeks bloom in the frost-free provinces. Posted discreetly anywhere in South Africa, with sourced grow figures shown on every strain page.

Effects

😊Happy
🤗Euphoric

Reach For It When

Anytime
Relaxation
Stress Relief

Strain Type

Indica 47%Sativa 53%

At a Glance

🧬Potency21% - 24% (High)
🌿ParentsChem's Sister × Sour Dubble × Chocolate Diesel
🔬Seed TypeFeminised Hybrid
🌡SuitsMost of the country
📅Cut InMarch – May outdoors, planted Sept – Nov
📏Grows ToMedium (150-245 cm)
⚖️Typical ReturnTypical for type
🏠Under LightMedium
🌳In the GroundMedium
Weeks in Bloom8-9 weeks

In the Packet

Reseals +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Inside the Packet
Sealed vial
Reseals +
Royal King Seeds sells seed as an adult collectible and for the preservation of genetics. Knowing and following the law where they live.
1
Sister Glue Feminised
royalkingseeds.co.za
IG
FB
X
🔒Factory-sealed
💧Water-resistant outer
🛡️Foil-lined inside
🏷️Tamper sticker
📱QR check
🔢Scratch-off serial

Related Strains

Sister Glue cannabis seeds packaging — Royal King Seeds South Africa
21% THC
HybridAuto
Quick Finish

Sister Glue Auto

HappyEuphoric
R194.63ZAR
Gorilla Glue cannabis seeds packaging — Royal King Seeds South Africa
21% THC
Hybrid
🔥 Well Known

Gorilla Glue Feminised

RelaxedHappyEuphoric
R228.51ZAR
Royal Gorilla cannabis seeds packaging — Royal King Seeds South Africa
27% THC
Hybrid
Strong

Royal Gorilla Feminised

EuphoricCreativeCalm
R228.51ZAR
Original Glue cannabis seeds packaging — Royal King Seeds South Africa
30% THC
Hybrid
Strong

Original Glue Feminised

EuphoricHappyRelaxed
R203.10ZAR

Sister Glue Feminised — Breeder Information

Royal King Genetics

Recreated and stabilised by Royal King Genetics , the breeding team behind this catalogue. Seed lots are germination-tested before they ship. More on the 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
19 August 2026· 95% germination guarantee