XXX 420 Auto
XXX 420 Auto: indica cannabis seeds picked for South African conditions. 18% 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 2026-09-13 on 500 seeds.
About XXX 420 Auto
XXX 420 announces itself in a fixed order, and caryophyllene is always first out of the jar — warm pepper that registers as heat rather than as smell, with dried clove and sandalwood beneath. myrcene follows mid-palate, adding an earthy floor. The lab figure on this 65/35 indica is 18% THC, though potency is the least interesting thing about it — plenty of cultivars test the same and taste of very little.
The Aromatic Three
Leading with Caryophyllene, then Myrcene, and Bisabolol underneath.
Difficulty: medium. In flower for Approximately 7–9 Weeks. Stands 90-120 cm. Medium. Indoors it returns 300 gr/m². Outdoors, 300 grams a plant.
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XXX 420 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.
XXX 420 is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the purple expression the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.
Lock the autoflower trait in XXX 420 through five generations of selection.
Chosen for trichome coverage, stout structure and consistent flowering time across the pack.
Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.