Cali Jack Feminised
A hybrid testing at 24% THC, Cali Jack Feminised is reported euphoric, creative, calm. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.
Royal King Genetics — 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 375 seeds.
About Cali Jack Feminised
Will Cali Jack handle a South African summer outdoors? Yes. Put this 36/64 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 9-11 weeks, placing harvest between March and May across most provinces.
What yield is realistic? 400-600 g/m2 indoors is reachable under decent LED with steady feeding. Outdoors, 425-567 g/plant (~ 550 g/plant) a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 24% 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: moderate. In flower for 9-11 weeks. Stands Medium (150-245 cm). Indoors it returns 400-600 g/m2. Outdoors, 425-567 g/plant (~ 550 g/plant) a plant.
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At a Glance
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Cali Jack Feminised — 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.
A mid-2010s cross stabilised over four generations of selection. Cali Jack grows true-to-type with the bud density that defines the cultivar.
Cull off-type phenos in Cali Jack through filial selection.
Chosen for vigour, terpene saturation and a tight finish window that allows production planning.
Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.