RK
Opium cannabis seeds packaging β€” Royal King Seeds South Africa
Hybrid
THC 21%
πŸ“ˆ Big Harvest
HybridFeminisedIn Stock

Opium Feminised

Buy Opium Feminised seeds in South Africa. Hybrid Β· 21% THC Β· euphoric, calm. Every figure on this page is sourced, and every order ships unbranded.

Select Pack Size
R194.63ZAR
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 2026-09-14 on 150 seeds.

Germination rate: 96.0% (n=150)
Last QC test date: 2026-09-14
Indoor yield: 423-540 g/mΒ² (avg across 15 verified grower reports)
Outdoor yield: 645-836 g/plant (avg across 6 verified grower reports)

About Opium Feminised

Will Opium handle a South African summer outdoors? Yes. Put this 62/38 hybrid in the ground between September and November and you will be cutting from March to May. The balanced genetics take what the country gives them, from coastal humidity in KwaZulu-Natal through to dry Karoo heat. Bloom runs 8-9 weeks, placing harvest between March and May across most provinces.

What yield is realistic? 400-450 g/m2 indoors is reachable under decent LED with steady feeding. Outdoors, 1000 g/plant a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 21% THC with myrcene 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.

The Aromatic Three

Leading with Myrcene, then Limonene, and Pinene underneath.

Difficulty: medium. In flower for 8-9 weeks. Stands <100 cm. Indoors it returns 400-450 g/m2. Outdoors, 1000 g/plant a plant.

Effects

πŸ€—Euphoric
🧘Calm

Reach For It When

✦ Anytime
✦ Relaxation
✦ Stress Relief

Strain Type

Indica 62%Sativa 38%

At a Glance

🧬Potency21% - 24% (High)
🌿ParentsWhite Widow Γ— Durban Poison Γ— Jack Herer
πŸ”¬Seed TypeFeminised Hybrid
🌑SuitsMost of the country
πŸ“…Cut InMarch – May outdoors, planted Sept – Nov
πŸ“Grows To<100 cm
βš–οΈTypical ReturnMedium – High
🏠Under Light400-450 g/m2
🌳In the Ground1000 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
Opium 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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Opium 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

A mid-2010s cross stabilised over four generations of selection. Opium grows true-to-type with the cross-derived trait balance that defines the cultivar.

Breeding Goal

Cull off-type phenos in Opium through filial selection.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

Royal King Genetics in-house breeder room β€” pollen taken from a generation-tracked sibling-male line.

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