
White Widow Auto
Buy White Widow Auto seeds in South Africa. Hybrid · 26% THC · euphoric, relaxed, uplifted. Every figure on this page is sourced, and every order ships unbranded.
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 2026-03-22 on 250 seeds.
About White Widow Auto
South Africa is really two growing countries, and White Widow does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 50/40 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 50/40 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 caryophyllene leading, what changes between a Johannesburg rooftop and a Cape smallholding is the schedule rather than the result.
Setting Up for South African Conditions
Outdoors, the province decides which problem you are actually solving.
KwaZulu-Natal and the subtropical coast. Humidity rather than heat is the limiting factor here. Whitefly and thrips peak from December through February, so introduce predatory mites (Phytoseiulus persimilis) before you see damage rather than after it. Airflow under the lower canopy matters more on this coast than anywhere else in the country.
The Highveld — Gauteng, Free State, North West. Frost closes the window at both ends. That suits autoflowering genetics well: plant from October and you will be finished long before the first frost. Above 1 400 m the ultraviolet index is high enough to push trichome production, but harden transplants off slowly or they bleach.
Western Cape. Flowering falls in the dry half of the year, which makes this the most forgiving outdoor condition in the country for White Widow — the mould pressure that shapes every other region never arrives. The south-easter is your problem instead: weeks of sustained summer wind through December and January will tear an unstaked plant apart.
Indoors the location stops mattering and the numbers take over. Through a summer sitting above 30°C ambient, run lights overnight on a 6pm-6am cycle and you sidestep most heat stress without paying for cooling. Hold humidity at 55-65% in veg and 40-50% once flowers set; EC 1.0-1.4 vegetative, 1.6-2.0 at peak bloom; pH between 5.8 and 6.3 depending on medium.
Difficulty: easy. In flower for 50-55 days (harvest 70-85 days after germination). Stands 30 - 90 cm. Indoors it returns 14 to 455 g/m2. Outdoors, 7 to 225 g/plant a plant.
What White Widow Is Like to Use
The effects most commonly reported for this cultivar are euphoric, relaxed, uplifted. At 26% THC it sits in a bracket where flexibility is the point. Lower doses read clear and functional in the morning, higher doses read relaxed in the evening. Because the 50/40 split is even, direction is set by how much you take rather than fixed by the genetics. The Caryophyllene/Myrcene pairing leaves a warm spice that dries slightly on the exhale on the palate.
Where it fits: most occasions, with the dose adjusted to whatever the situation asks for.
The Aromatic Three
Leading with Caryophyllene, then Myrcene, and Humulene underneath. How this combination survives the move from flower to vapour or smoke is not a given. Held low, at 180-188°C, the myrcene and humulene notes stay legible with caryophyllene underneath them. Run it hotter, or burn it, and the three collapse into one — still pleasant, but without the separation that makes this cultivar worth paying attention to.
Suitability and Recommendations
White Widow 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 50-55 days (harvest 70-85 days after germination) 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

White Widow Feminised
White Widow Feminised for South African growers — hybrid genetics at 26% THC, reported as euphoric, relaxed, uplifted. Sourced grow figures on the page, plain packaging, delivered nationwide.

Gorilla Glue #4 Auto
A hybrid testing at 28% THC, Gorilla Glue #4 Auto is reported euphoric, relaxed, uplifted. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

Master Yoda Auto
Buy Master Yoda Auto seeds in South Africa. Hybrid · 24% THC · euphoric, happy, relaxed. Every figure on this page is sourced, and every order ships unbranded.

Sour Dubble Auto
Buy Sour Dubble Auto seeds in South Africa. Hybrid · 26% THC · relaxed, happy, euphoric. Every figure on this page is sourced, and every order ships unbranded.
White Widow 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 selection on White Widow to lock the autoflower trait. Auto trigger reliability and flavour saturation expression both run uniform across the population — no rogue photoperiod plants in the pack.
Reach auto trigger and finish-window uniformity for the White Widow pack.
Chosen for balanced indica/sativa expression, terpene fidelity and pack-to-pack uniformity.
Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.