Old School OG Auto
Old School OG Auto: indica cannabis seeds picked for South African conditions. 20% THC, with relaxed, sleepy, happy 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 2026-09-15 on 125 seeds.
About Old School OG Auto
Days 1 to 14, seed to fourth node: Expect Old School OG to crack in roughly 48 hours on damp paper towel and to break soil by day three. Early growth comes in low and wide — broad seed leaves first, then the dark fan leaves the indica side is known for. Four nodes by the end of week two, stacked close together. Damping off is rare if you hold near 70% humidity through this stage.
Weeks 3 to 6, building the frame: Top at the fourth node and the laterals take over fast. A 60 x 60 cm footprint filled by week five is normal, still under 40 cm tall, which is what makes this workable in a small tent.
Bloom, weeks 1 to 65: The 76/24 character becomes obvious here. Myrcene usually shows in week three and strengthens from there, with trichome cover visible without a loupe from about week five. Indoor yield: up to 300 g/m2. Height: Short. Tested at 20% THC. Difficulty: easy.
The Aromatic Three
Leading with Myrcene, then Caryophyllene, and Linalool underneath.
Difficulty: easy. In flower for 55-65 days. Stands Short. Indoors it returns up to 300 g/m2. Outdoors, up to 450 g/plant a plant.
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Old School OG 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.
Five generations of Royal King Genetics autoflower stabilisation on Old School OG. Auto trigger time, finish window and compact internode spacing all run uniform — no photo-hybrid surprises in the pack.
Lock the autoflower trait in Old School OG through five generations of selection.
Chosen for resin output, a low-slung stature and a clean indica terpene fingerprint.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.