RK
J1 cannabis seeds packaging β€” Royal King Seeds South Africa
Hybrid
THC 23%
🎨 Heady
HybridFeminisedIn Stock

J1 Feminised

A hybrid testing at 23% THC, J1 Feminised is reported creative, happy, uplifted. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

Select Pack Size
R262.39ZAR
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 2026-09-07 on 175 seeds.

Germination rate: 97.5% (n=175)
Last QC test date: 2026-09-07
Indoor yield: 428-594 g/mΒ² (avg across 12 verified grower reports)
Outdoor yield: 518-858 g/plant (avg across 3 verified grower reports)

About J1 Feminised

Will J1 handle a South African summer outdoors? Yes. Put this 40/60 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 55-65 days, placing harvest between March and May across most provinces.

What yield is realistic? up to 450 g/m2 indoors is reachable under decent LED with steady feeding. Outdoors, up to 600 g/plant a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 23% THC with caryophyllene 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 Caryophyllene, then Limonene, and Myrcene underneath.

Difficulty: intermediate. In flower for 55-65 days. Stands Medium. Indoors it returns up to 450 g/m2. Outdoors, up to 600 g/plant a plant.

Effects

🀩Creative
😊Happy
😎Uplifted

Reach For It When

✦ Anytime
✦ Depression
✦ Fatigue
✦ Stress

Strain Type

Indica 40%Sativa 60%

At a Glance

🧬Potency23% - 28% (High)
🌿ParentsJack Herer Γ— Skunk #1
πŸ”¬Seed TypeFeminised Hybrid
🌑SuitsMost of the country
πŸ“…Cut InMarch – May outdoors, planted Sept – Nov
πŸ“Grows ToMedium
βš–οΈTypical ReturnMedium – High
🏠Under Lightup to 450 g/m2
🌳In the Groundup to 600 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
J1 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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J1 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
Filial Stabilisation (F4) β€” four-generation selection
Stabilisation Notes β€” What This Means for Your Grow

Four rounds of filial stabilisation on the J1 cross. The trichome production expression sits uniform; pheno-to-pheno yield variation runs within Β±10% of the published numbers.

Breeding Goal

Pin trichome production consistency across the J1 population.

Selection Focus

Chosen for balanced indica/sativa expression, terpene fidelity and pack-to-pack uniformity.

Pollen / Mother Source

Royal King Genetics select-mother programme β€” pollen drawn from an internally maintained reversed-female line.

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