Corkscrew cannabis seeds packaging — Royal King Seeds South Africa
HybridAuto
THC 19%
Quick Finish
HybridAutoflowerIn Stock

Corkscrew Auto

Corkscrew Auto: hybrid cannabis seeds picked for South African conditions. 19% THC, with euphoric, creative, calm the effects most often reported. Posted discreetly countrywide.

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R194.63ZAR
1
🇿🇦Free South Africa Delivery
🌱Germination Cover
🔒Nothing on the Box

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 2026-02-19 on 325 seeds.

Germination rate: 99.2% (n=325)
Last QC test date: 2026-02-19
Indoor yield: 428-548 g/m² (avg across 16 verified grower reports)
Outdoor yield: 590-902 g/plant (avg across 3 verified grower reports)

About Corkscrew Auto

The way to plan Corkscrew is backwards from the day you intend to cut, with 455 - 540 g/m2 per square metre indoors and 85 - 170 g/plant per plant outdoors as the figures you are working toward, at 19% THC. Count 55-65 days back from that date and you have your flip date. Weight comes on evenly across 55-65 days, with a late surge that punishes impatience. The 57/43 balance gives you stacking density and broad trichome cover together. Outdoors, late March to late April is the sweet spot — after the summer humidity has broken, before the first Highveld frost.

Where the Weight Actually Comes From

Yield on Corkscrew — the 455 - 540 g/m2 indoors and 85 - 170 g/plant outdoors quoted above — is decided in three short stretches of the 55-65 days 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 of 30-40% is normal. One round of low-stress training on the tallest shoots levels it out.

Weeks three to five. This is when caryophyllene 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 10-15% amber to keep both sides of the hybrid in play. Outdoors that usually lands between late March and mid-April.

Difficulty: easy. In flower for 55-65 days. Stands 60 - 90 cm. Indoors it returns 455 - 540 g/m2. Outdoors, 85 - 170 g/plant a plant.

Aroma, Flavour and Effect

The first thing Corkscrew does at 19% THC is settle a warm peppery spice at the back of the throat. The euphoric, creative, calm effects follow within minutes, across head and body at once. Thinking stays clear while muscle tension drains off, which leaves the dose as the deciding factor — light for the afternoon, heavier and it moves into the evening without a jolt. Limonene sits underneath all of it, adding a brightness that offsets any heaviness.

The Aromatic Three

Leading with Caryophyllene, then Limonene, and Myrcene underneath. This trio turns up repeatedly in cultivars that win things, and it is why a jar of Corkscrew tends to get a reaction the first time it is opened after curing. Caryophyllene sets the anchor, limonene fills the middle, and myrcene 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 Corkscrew? 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 easy, which in practice means a moderate learning curve that rewards attention without needing laboratory conditions. Sent nationwide in plain, unbranded packaging, with sourced grow data on every strain page.

Effects

🤗Euphoric
🤩Creative
🧘Calm

Reach For It When

Anytime
Relaxation
Stress Relief

Strain Type

Indica 57%Sativa 43%

At a Glance

🧬Potency19% - 23% (Medium-High)
🌿ParentsAutoflowering Balanced Hybrid (Undisclosed Lineage)
🔬Seed TypeAutoflower Hybrid
🌡SuitsAnywhere — it runs on its own clock
📅Cut In≈ 10 – 11 weeks from seed, whenever you plant
📏Grows To60 - 90 cm
⚖️Typical ReturnMedium – High
🏠Under Light455 - 540 g/m2
🌳In the Ground85 - 170 g/plant
Weeks in Bloom55-65 days

In the Packet

Reseals +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Inside the Packet
Sealed vial
Reseals +
Royal King Seeds sells seed as an adult collectible and for the preservation of genetics. Knowing and following the law where they live.
1
Corkscrew Auto
royalkingseeds.co.za
IG
FB
X
🔒Factory-sealed
💧Water-resistant outer
🛡️Foil-lined inside
🏷️Tamper sticker
📱QR check
🔢Scratch-off serial

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Corkscrew Auto — Breeder Information

Royal King Genetics

Recreated 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.

Stabilisation Level
F5
Generations
5+
Breeding Programme
Autoflower Programme — five-generation auto trait fixing
Stabilisation Notes — What This Means for Your Grow

Five generations of selection on Corkscrew to lock the autoflower trait. Auto trigger reliability and pack-to-pack uniformity expression both run uniform across the population — no rogue photoperiod plants in the pack.

Breeding Goal

Stabilise the recessive ruderalis trait in Corkscrew for uniform auto-trigger.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
2 January 2026· 95% germination guarantee