RK
XJ-13 cannabis seeds packaging β€” Royal King Seeds South Africa
Hybrid
THC 23%
🎨 Heady
HybridFeminisedIn Stock

XJ-13 Feminised

A hybrid testing at 23% THC, XJ-13 Feminised is reported energetic, happy, relaxed. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

Select Pack Size
R228.51ZAR
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 2026-09-15 on 250 seeds.

Germination rate: 99.1% (n=250)
Last QC test date: 2026-09-15
Indoor yield: 404-552 g/mΒ² (avg across 16 verified grower reports)
Outdoor yield: 650-962 g/plant (avg across 3 verified grower reports)

About XJ-13 Feminised

Will XJ-13 handle a South African summer outdoors? Yes. Put this 50/50 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 9-10 weeks, placing harvest between March and May across most provinces.

What yield is realistic? Up to 650 gr./m2 indoors is reachable under decent LED with steady feeding. Outdoors, Up to 800 gr./plant a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 23% THC with limonene 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 Limonene, then Caryophyllene, and Linalool underneath.

Difficulty: intermediate. In flower for 9-10 weeks. Stands over 185 cm tall if left untrained. Indoors it returns Up to 650 gr./m2. Outdoors, Up to 800 gr./plant a plant.

Effects

πŸ€‘Energetic
😊Happy
😌Relaxed

Reach For It When

✦ Anxiety
✦ Anytime
✦ Depression
✦ Pain

Strain Type

Indica 50%Sativa 50%

At a Glance

🧬Potency23% - 27% (High)
🌿ParentsJack Herer Γ— G13 Haze
πŸ”¬Seed TypeFeminised Hybrid
🌑SuitsMost of the country
πŸ“…Cut InMarch – May outdoors, planted Sept – Nov
πŸ“Grows Toover 185 cm tall if left untrained
βš–οΈTypical ReturnTypical for type
🏠Under LightUp to 650 gr./m2
🌳In the GroundUp to 800 gr./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
XJ-13 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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XJ-13 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
F3
Generations
3+
Breeding Programme
F3 Refinement Programme β€” three-generation selection
Stabilisation Notes β€” What This Means for Your Grow

XJ-13 runs through our F3 programme. Most of the pack expresses the target pack-to-pack uniformity cleanly; the F3-to-F4 cycle is where we close out the last remaining off-types.

Breeding Goal

Cull off-type phenos in XJ-13 at F3 to lock the cross profile.

Selection Focus

Chosen for terpene profile, vigour, structure and finish-time consistency.

Pollen / Mother Source

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

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