RK
Blackwater cannabis seeds packaging β€” Royal King Seeds South Africa
Indica
THC 19%
πŸ“ˆ Big Harvest
IndicaFeminisedIn Stock

Blackwater Feminised

Buy Blackwater Feminised seeds in South Africa. Indica Β· 19% THC Β· euphoric, calm. Every figure on this page is sourced, and every order ships unbranded.

Select Pack Size
R245.45ZAR
1
πŸ‡ΏπŸ‡¦Free South Africa Delivery
🌱Germination Cover
πŸ”’Nothing on the Box
βš—

Royal King Genetics β€” Seed-Lot Testing

Figures below come from our own seed-lot testing rather than breeder marketing, taken from a single batch tested 2026-09-16 on 450 seeds.

Germination rate: 98.6% (n=450)
Last QC test date: 2026-09-16
Indoor yield: 433-568 g/mΒ² (avg across 13 verified grower reports)
Outdoor yield: 577-830 g/plant (avg across 4 verified grower reports)

About Blackwater Feminised

South Africa is really two growing countries, and Blackwater does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 83/17 indica 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. Dense indica flowers at 19% THC are the wrong shape for a wet summer finish. Between Durban and Richards Bay, once humidity sits above 65% for days at a stretch, botrytis reaches the core of a cola before anything shows on the surface β€” defoliate early, space plants wider than feels necessary, and keep air moving under the canopy. That same density turns into an advantage on the Highveld: above 1 400 m the autumn nights go cold and dry, linalool sharpens as the temperature drops, and a compact frame shrugs off a Free State storm that would flatten something taller.

The Aromatic Three

Leading with Linalool, then Myrcene, and Caryophyllene underneath.

Difficulty: medium. In flower for 8-9 weeks. Stands Medium (150-245 cm). Indoors it returns 400 g/m2. Outdoors, 550 g/plant a plant.

Effects

πŸ€—Euphoric
🧘Calm

Reach For It When

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 83%Sativa 17%

At a Glance

🧬Potency19% - 24% (Medium-High)
🌿ParentsMendo Purps Γ— San Fernando Valley OG Kush
πŸ”¬Seed TypeFeminised Indica
🌑SuitsHighveld and the drier interior
πŸ“…Cut InMarch – May outdoors, planted Sept – Nov
πŸ“Grows ToMedium (150-245 cm)
βš–οΈTypical ReturnMedium – High
🏠Under Light400 g/m2
🌳In the Ground550 g/plant
⏱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
Blackwater Feminised
royalkingseeds.co.za
IG
FB
X
πŸ”’Factory-sealed
πŸ’§Water-resistant outer
πŸ›‘οΈFoil-lined inside
🏷️Tamper sticker
πŸ“±QR check
πŸ”’Scratch-off serial

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Blackwater Feminised β€” 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 β€” four-generation pheno fixing
Stabilisation Notes β€” What This Means for Your Grow

F4 stabilisation on Blackwater. Each generation we cull aggressively against off-types β€” the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Stabilise the Blackwater cross over four selection rounds.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

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

Last Batch QC Verified
9 September 2026Β· 95% germination guarantee