
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.
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.
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
Reach For It When
Strain Type
At a Glance
In the Packet
Feminised Premium
Seeds
the source
inside
number
Related Strains

Candy Jack Feminised
A hybrid testing at 25% THC, Candy Jack Feminised is reported energetic, happy, uplifted. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

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.

Super Jack Feminised
Super Jack Feminised: hybrid cannabis seeds picked for South African conditions. 26% THC, with creative, focused, energetic the effects most often reported. Posted discreetly countrywide.

Jacked-Up Feminised
Jacked-Up Feminised for South African growers β hybrid genetics at 23% THC, reported as euphoric, energetic, calm. Sourced grow figures on the page, plain packaging, delivered nationwide.
XJ-13 Feminised β Breeder Information
Royal King GeneticsRecreated 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.
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.
Cull off-type phenos in XJ-13 at F3 to lock the cross profile.
Chosen for terpene profile, vigour, structure and finish-time consistency.
Royal King Genetics in-house breeder room β pollen taken from a generation-tracked sibling-male line.