Black Widow cannabis seeds packaging — Royal King Seeds South Africa
Indica
THC 27%
Strong
IndicaFeminisedIn Stock

Black Widow Feminised

Buy Black Widow Feminised seeds in South Africa. Indica · 27% THC · euphoric, creative, calm. Every figure on this page is sourced, and every order ships unbranded.

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R194.63ZAR
1
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🌱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 2026-03-12 on 225 seeds.

Germination rate: 96.3% (n=225)
Last QC test date: 2026-03-12
Indoor yield: 439-602 g/m² (avg across 15 verified grower reports)
Outdoor yield: 619-886 g/plant (avg across 10 verified grower reports)

About Black Widow Feminised

Will Black Widow handle a South African summer outdoors? Yes. Put this 86/14 indica in the ground between September and November and you will be cutting from March to May. It stays low enough not to clear a boundary wall, and the short frame carries more weight than its size suggests. Bloom runs 9-10 weeks, placing harvest between March and May across most provinces.

What yield is realistic? 350 - 450 g/m² indoors is reachable under decent LED with steady feeding. Outdoors, up to 400 g/plant a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 27% THC with linalool in front, the return on effort is good.

How much can go wrong before it shows? Some. Anyone who understands pH, a feeding schedule and a light cycle will be fine. Neglect it entirely and it will suffer, but a single missed watering will not undo the grow.

Further Questions from South African Growers

Which medium suits it best? Depends what you are optimising for. Organic soil cut with 30% perlite and amended with bone meal, rock phosphate and kelp meal gives the fuller flavour, and all three are stocked by garden centres, agricultural co-ops and hydro shops countrywide. Coco under automated fertigation at EC 1.4-1.8 through bloom gives the bigger number. This indica genetics performs in either.

Does it cope with real summer heat? Reasonably. The dense foliage shades itself, so a spell above 28°C slows growth without stalling it. Mulch the root zone and water before 7am and heat stress stays manageable through most of the country.

When do I switch to bloom feed? As soon as pistils show, not a fortnight later. The 86/14 genetics changes its demand sharply at the transition: phosphorus and potassium uptake rises while nitrogen demand falls away. Soil growers can top-dress with guano and sulphate of potash; coco and hydro growers should move to a low-N, high-PK formula immediately.

Indoors or outdoors? Indoors buys control over the 9-10 weeks environment. Outdoors, across a September-to-May season, gives you sunlight intensity no LED at any price reproduces, and the full up to 400 g/plant. Difficulty: medium. In flower for 9-10 weeks. Stands Up to 160 cm. Indoors it returns 350 - 450 g/m². Outdoors, up to 400 g/plant a plant.

What Black Widow Is Like to Use

The effects most commonly reported for this cultivar are euphoric, creative, calm. At 27% THC it sits in a bracket where the dose does most of the work. A single bowl vaporised at 185°C gives a manageable body relaxation with your head still intact — enough to close out a long day in the summer heat. Push the dose and it moves decisively toward physical sedation, which is how it tends to end up as a winter evening cultivar. The Linalool/Myrcene pairing leaves a shifting profile that keeps turning up new notes on the palate.

Where it fits: quiet evenings, a film, recovery after exercise, and the hours before sleep.

The Aromatic Three

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

Suitability and Recommendations

Black Widow 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 9-10 weeks bloom in the frost-free provinces. Posted discreetly anywhere in South Africa, with sourced grow figures shown on every strain page.

Effects

🤗Euphoric
🤩Creative
🧘Calm

Reach For It When

Evening
Relaxation
Sleep Support

Strain Type

Indica 86%Sativa 14%

At a Glance

🧬Potency27% - 31% (Very High)
🌿ParentsIndica-Dominant Hybrid (Undisclosed Lineage)
🔬Seed TypeFeminised Indica
🌡SuitsHighveld and the drier interior
📅Cut InMarch – May outdoors, planted Sept – Nov
📏Grows ToUp to 160 cm
⚖️Typical ReturnMedium – High
🏠Under Light350 - 450 g/m²
🌳In the Groundup to 400 g/plant
Weeks in Bloom9-10 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
Black Widow Feminised
royalkingseeds.co.za
IG
FB
X
🔒Factory-sealed
💧Water-resistant outer
🛡️Foil-lined inside
🏷️Tamper sticker
📱QR check
🔢Scratch-off serial

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

A 2010s production cross stabilised over four generations of selection. Black Widow grows true-to-type with the compact internode spacing that defines the cultivar.

Breeding Goal

Carry Black Widow from F1 cross to F4 production-ready seed stock.

Selection Focus

Chosen for indica vigour, compact bud formation and a reliable finish window.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
28 June 2026· 95% germination guarantee