
White Runtz Auto
A indica testing at 29% THC, White Runtz Auto is reported aroused, creative, energetic. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.
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 2026-02-05 on 275 seeds.
About White Runtz Auto
Days 1 to 14, seed to fourth node: Expect White Runtz 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 9: The 70/30 character becomes obvious here. Caryophyllene usually shows in week three and strengthens from there, with trichome cover visible without a loupe from about week five. Indoor yield: 400-450 g/m2. Height: Small (0-120 cm). Tested at 29% THC. Difficulty: beginner.
Bloom Through to Jar
Weeks 4 to 6. This is where the plant stops looking like a frame and starts looking like a crop. Density climbs almost daily — by week five a developing cola should feel firm rather than springy under light pressure. Pull the fan leaves shading the lower canopy at the start of week four, which matters more than usual if the room is sitting near 55% humidity through a damp autumn.
Weeks 7 to 9, ripening. Drop to plain water for the final ten days. The caryophyllene carry gets strong enough that carbon filtration stops being optional in a residential street. Trichomes run clear to milky across the last fortnight, amber showing on sugar leaves before it reaches the calyxes; around 15% amber on the calyxes themselves is a common place to cut.
Drying and curing. Whole-plant hang in the dark at 17°C and 58% humidity for roughly 12 days — when stems snap instead of bending, it is ready for glass. Burp twice daily for the first fortnight, then once daily through weeks three and four. Finished weight should land near the 400-450 g/m2 estimate. The myrcene note comes through markedly stronger after curing than it did at harvest, which is the clearest evidence that a cure builds flavour rather than merely preserving it.
Difficulty: beginner. In flower for 8-9 weeks. Stands Small (0-120 cm). Indoors it returns 400-450 g/m2. Outdoors, 500 g/plant a plant. Regular seeds with autoflowering genetics.
Aroma, Flavour and Effect
The first thing White Runtz does at 29% THC is settle a warm peppery spice at the back of the throat. The aroused, creative, energetic effects follow within minutes, starting as weight behind the eyes and working down through the shoulders and limbs. Fifteen minutes in there is a physical stillness — not sedation so much as a disinclination to get up. Two to three hours at a moderate dose. Myrcene sits underneath all of it, adding more body, reinforcing the physical side.
The Aromatic Three
Leading with Caryophyllene, then Myrcene, and Bisabolol underneath. This trio turns up repeatedly in cultivars that win things, and it is why a jar of White Runtz tends to get a reaction the first time it is opened after curing. Caryophyllene sets the anchor, myrcene fills the middle, and bisabolol sits in the background doing the work that separates this from every other strain built on the same primary terpene.
Suitability and Recommendations
Who does well with White Runtz? People growing on flat balconies from Cape Town to Johannesburg. Smallholders after a fast outdoor crop. Indoor growers short on headroom. Autoflowering genetics run to their own clock, so there is no light schedule to hold, no worrying about light leaks, and harvest lands 10-12 weeks from germination whatever the season is doing. It is rated beginner, which in practice means a first-time grower with a basic setup and a feeding schedule they actually follow will get a decent result. Sent nationwide in plain, unbranded packaging, with sourced grow data on every strain page.
Effects
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At a Glance
In the Packet
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White Runtz 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 White Runtz. Auto trigger time, finish window and indica relaxation profile all run uniform — no photo-hybrid surprises in the pack.
Lock the autoflower trait in White Runtz through five generations of selection.
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.