RK
Opal OG Kush cannabis seeds packaging β€” Royal King Seeds South Africa
Indica
THC 23%
πŸŒ™ Night-Time
IndicaFeminisedIn Stock

Opal OG Kush Feminised

Opal OG Kush Feminised: indica cannabis seeds picked for South African conditions. 23% THC, with relaxed, creative, calm the effects most often reported. Posted discreetly countrywide.

Select Pack Size
R203.10ZAR
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 2026-09-19 on 325 seeds.

Germination rate: 99.0% (n=325)
Last QC test date: 2026-09-19
Indoor yield: 444-558 g/mΒ² (avg across 8 verified grower reports)
Outdoor yield: 452-680 g/plant (avg across 7 verified grower reports)

About Opal OG Kush Feminised

South Africa is really two growing countries, and Opal OG Kush does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 80/20 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 23% 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, myrcene 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 Myrcene, then Caryophyllene, and Linalool underneath.

Difficulty: intermediate. In flower for 55-65 days. Stands 90-120 cm. Medium. Indoors it returns up to 400 g/m2. Outdoors, up to 400 g/plant a plant.

Effects

😌Relaxed
🀩Creative
🧘Calm

Reach For It When

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 80%Sativa 20%

At a Glance

🧬Potency23% - 27% (High)
🌿ParentsFrankenstein Γ— Lemon OG Kush
πŸ”¬Seed TypeFeminised Indica
🌑SuitsHighveld and the drier interior
πŸ“…Cut InMarch – May outdoors, planted Sept – Nov
πŸ“Grows To90-120 cm. Medium
βš–οΈTypical ReturnMedium – High
🏠Under Lightup to 400 g/m2
🌳In the Groundup to 400 g/plant
⏱Weeks in Bloom55-65 days

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
Opal OG Kush 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

Related Strains

OG’s Pearl cannabis seeds packaging β€” Royal King Seeds South Africa
17% THC
Indica
πŸŒ™ Night-Time

OG’s Pearl Feminised

RelaxedCalm
β–Ό
R203.10ZAR
Sweet Lafayette cannabis seeds packaging β€” Royal King Seeds South Africa
19% THC
Indica
πŸŒ™ Night-Time

Sweet Lafayette Feminised

RelaxedSleepyHappy
β–Ό
R203.10ZAR
OG's Pearl cannabis seeds packaging β€” Royal King Seeds South Africa
17% THC
IndicaAuto
⏱ Quick Finish

OG's Pearl Auto

RelaxedCalm
β–Ό
R203.10ZAR
Cascadia Kush cannabis seeds packaging β€” Royal King Seeds South Africa
24% THC
Indica
πŸ“ˆ Big Harvest

Cascadia Kush Feminised

EuphoricCalm
β–Ό
R211.57ZAR

Opal OG Kush 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
BX3
Generations
4+
Breeding Programme
Royal King Genetics Backcross Line β€” BX3 clone-only restabilisation
Stabilisation Notes β€” What This Means for Your Grow

Three rounds of backcrossing to the parental line have welded the Opal OG Kush cut into the population. The compact internode spacing that made the original mother famous now expresses across the whole pack β€” not just in one or two lucky phenos.

Breeding Goal

Translate a clone-only recent-era cultivar to seed without losing the mother profile.

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 elite-cut archive β€” pollen from a maintained S1 line of the original elite mother.

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