
El Chapo OG Auto
El Chapo OG Auto for South African growers — indica genetics at 20% THC, reported as focused, calm. Sourced grow figures on the page, plain packaging, delivered nationwide.
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 2026-03-12 on 125 seeds.
About El Chapo OG Auto
The way to plan El Chapo OG is backwards from the day you intend to cut, with 300–400 g/m² per square metre indoors and 350–450 g/plant per plant outdoors as the figures you are working toward, at 20% THC. Count 7–9 weeks from seed back from that date and you have your flip date. Most of the final weight lands between weeks 5 and 8, when calyxes stack fastest and trichome cover goes from patchy to complete. Outdoors in the Southern Hemisphere you want that fattening phase falling in February while the days are still long, which puts a late-March cut about right for most of the country.
Where the Weight Actually Comes From
Yield on El Chapo OG — the 300–400 g/m² indoors and 350–450 g/plant outdoors quoted above — is decided in three short stretches of the 7–9 weeks from seed bloom rather than evenly across it.
The first ten days after the flip. Whatever stretch happens here sets your canopy, and an uneven canopy wastes light for the remainder of the grow. Stretch is modest at 20-30%. Strip the lower fan leaves around day seven and that energy goes into bud sites instead.
Weeks three to five. This is when myrcene production climbs, and it answers to the gap between day and night temperature rather than to either number on its own. Keep at least 6-8°C between them. Outdoor growers in the interior provinces get that swing free in March and April; indoors, aim for 25-26°C lights-on against 18-20°C lights-off, with potassium-led bloom feed at EC 1.6-1.8.
The last ten to fourteen days. Stop feeding, flush with pH-corrected water, and read trichomes daily under a 60x loupe. Cut at 15-20% amber for the heavy end of what this genetics does. Outdoors that usually lands between late March and mid-April.
Difficulty: easy. In flower for 7–9 weeks from seed. Stands 70–110 cm. Indoors it returns 300–400 g/m². Outdoors, 350–450 g/plant a plant.
What El Chapo OG Is Like to Use
The effects most commonly reported for this cultivar are focused, calm. At 20% THC it sits in a bracket where the dose does most of the work. A single bowl vaporised at 185°C gives a manageable body relaxation with your head still intact — enough to close out a long day in the summer heat. Push the dose and it moves decisively toward physical sedation, which is how it tends to end up as a winter evening cultivar. The Myrcene/Humulene pairing leaves an earthy sweetness with a fruit finish on the palate.
Where it fits: quiet evenings, a film, recovery after exercise, and the hours before sleep.
The Aromatic Three
Leading with Myrcene, then Humulene, and Linalool underneath. Read across a cure, these three compounds do not stay in the same order. Fresh off the dry, myrcene leads. After three or four weeks in sealed glass at 16-18°C the linalool undertone comes up and the bouquet gains a layer it did not have at harvest. Vaporising between 180°C and 195°C captures the widest span of them — run it hotter and the volatile linalool molecules are the first thing you lose.
Suitability and Recommendations
El Chapo OG is a reasonable fit for growers with the basics already in place. Understand pH, know roughly what nutrient ratios do, and be able to hold a light cycle — it will not carry you, but it does not punish the occasional slip either. Because it autoflowers there is no light cycle to manage at all, which is what makes it work on a balcony, in an out-of-the-way outdoor spot, or anywhere a timer would be one more thing to go wrong. A September-to-May outdoor season comfortably covers a 7–9 weeks from seed bloom in the frost-free provinces. Posted discreetly anywhere in South Africa, with sourced grow figures shown on every strain page.
Effects
Reach For It When
Strain Type
At a Glance
In the Packet
Regular
Seeds
the source
inside
number
Related Strains

American Kush Auto
American Kush Auto for South African growers — indica genetics at 18% THC, reported as uplifted, focused, calm. Sourced grow figures on the page, plain packaging, delivered nationwide.

Blue Zombie Auto
Blue Zombie Auto: indica cannabis seeds picked for South African conditions. 18% THC, with sleepy, focused, calm the effects most often reported. Posted discreetly countrywide.

Crouching Tiger Hidden Alien Auto
A indica testing at 22% THC, Crouching Tiger Hidden Alien Auto is reported focused, calm. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

Illuminati OG Auto
A indica testing at 18% THC, Illuminati OG Auto is reported focused, calm. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.
El Chapo 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.
El Chapo OG 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.
Stabilise the recessive ruderalis trait in El Chapo OG for uniform auto-trigger.
Chosen for resin density, indica-leaning frame and tight internodes that suit indoor production.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.