Super Jack Auto
Super Jack Auto: hybrid cannabis seeds picked for South African conditions. 26% THC, with creative, focused, energetic the effects most often reported. Posted discreetly countrywide.
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 2026-09-23 on 350 seeds.
About Super Jack Auto
South Africa is really two growing countries, and Super Jack does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 60/40 hybrid does its flowering while the air is still heavy; in the Western Cape the rain comes in winter, so the same plant ripens through a dry autumn instead. A 60/40 split travels better than either parent across a country running from subtropical coast to semi-desert. The canopy sits open enough to survive a humid KwaZulu-Natal autumn and dense enough to still look the part after a dry Karoo summer. At 26% THC with limonene leading, what changes between a Johannesburg rooftop and a Cape smallholding is the schedule rather than the result.
The Aromatic Three
Leading with Limonene, then Caryophyllene, and Linalool underneath.
Difficulty: intermediate. In flower for 55-65 days. Stands Medium. Indoors it returns up to 450 g/m2. Outdoors, up to 550 g/plant a plant.
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Super Jack Auto — 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.
Super Jack is an autoflowering line that has been progressed through five rounds of Royal King Genetics autoflower stabilisation. The autoflower trait is recessive — fixing it takes multi-generation work — and at F5 the auto trigger and finish window are welded across the pack.
Lock the autoflower trait in Super Jack through five generations of 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.