RK
Corkscrew cannabis seeds packaging โ€” Royal King Seeds New Zealand
HybridAuto
THC 19%
โฑ Fast Grow
HybridAutoflowerIn Stock

Corkscrew Auto

Corkscrew Auto cannabis seeds for New Zealand growers. Hybrid strain ยท 19% THC ยท euphoric, creative, calm. Discreet packaging, nationwide delivery, sourced grow figures.

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$20.69NZD
1
๐Ÿ‡ณ๐Ÿ‡ฟFree NZ Delivery
๐ŸŒฑGermination Promise
๐Ÿ”’Unmarked Packaging
โš—

Royal King Genetics โ€” first-party test batch

Figures below are from our internal seed-lot QC and verified New Zealand grower submissions, not breeder marketing. Determined 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/mยฒ (avg across 16 verified grower reports)
Outdoor yield: 590-902 g/plant (avg across 3 verified grower reports)

About Corkscrew Auto

Here is what Corkscrew delivers at harvest: 455 - 540 g/m2 per square metre indoors, 85 - 170 g/plant per plant outdoors in New Zealand conditions, with resin production peaking at 19% THC. Those numbers tell a story when you work backwards through the 55-65 days window. Weight distribution across the 55-65 days cycle is pleasingly even, with a noticeable surge in the closing two weeks that rewards growers who resist harvesting prematurely. The 57/43 balance means you get both calyx stacking density and respectable trichome spread. For outdoor growers, the ideal harvest window lands between mid-March and mid-April โ€” early enough to dodge late-autumn moisture in most states, late enough to capture the full caryophyllene terpene development.

Maximising Your Harvest

To reach the upper end of this strain's yield potential (455 - 540 g/m2 indoors, 85 - 170 g/plant outdoors), focus your efforts on three critical windows during the 55-65 days period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Moderate 30-40% stretch is typical. One round of low-stress training on the tallest shoots keeps everything level.

Window 2: Weeks 3-5 of bloom. Caryophyllene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8ยฐC to encourage terpene accumulation โ€” New Zealand autumn evenings (March-April) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26ยฐC during lights-on and 18-20ยฐC during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.

Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe โ€” harvest at 10-15% amber for a balanced effect. Southern Hemisphere outdoor growers: this window typically falls in late March through mid-April.

Flowering: 55-65 days. Indoor yield: 455 - 540 g/m2. Outdoor yield: 85 - 170 g/plant. Plant height: 60 - 90 cm. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Corkscrew unfolds in stages. Initial inhalation at 19% THC brings a warm peppery spice that tingles at the back of the throat. The euphoric, creative, calm effects emerge within minutes, presenting as a simultaneous head-and-body experience. Mental clarity remains intact whilst the muscles release tension progressively. This dual action makes it adaptable โ€” a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The limonene secondary terpene adds a distinct layer: a mood-elevating brightness that counterbalances any heaviness.

Terpene Breakdown

Primary: Caryophyllene ยท Secondary: Limonene ยท Tertiary: Myrcene. This particular terpene trio appears frequently in award-winning cultivars and produces a nose that most growers find immediately appealing when jars are first opened after curing. The caryophyllene dominance anchors the aroma, limonene provides mid-range character, and myrcene contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.

Suitability and Recommendations

Who grows Corkscrew successfully? Balcony growers in apartment blocks from Auckland to Christchurch. Regional cultivators wanting a quick-turnaround outdoor crop. Indoor growers with limited headroom in small tents. The autoflowering genetics run on their own internal clock โ€” no light schedule adjustments, no stress about light leaks, and harvest arrives 10-12 weeks after germination regardless of the season. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered nationwide in discreet, unbranded packaging with sourced grow data on every strain page.

Effects

๐Ÿค—Euphoric
74% of people reported feeling Euphoric
๐ŸคฉCreative
70% of people reported feeling Creative
๐Ÿง˜Calm
60% of people reported feeling Calm
๐Ÿ˜ŒRelaxed
51% of people reported feeling Relaxed
๐Ÿ˜ŠHappy
45% of people reported feeling Happy
๐Ÿ˜ŽUplifted
38% of people reported feeling Uplifted
๐ŸคคHungry
34% of people reported feeling Hungry
๐Ÿ˜ดSleepy
31% of people reported feeling Sleepy
๐Ÿ˜†Giggly
24% of people reported feeling Giggly

Best For

โœฆ Anytime
โœฆ Relaxation
โœฆ Stress Relief

Strain Type

Indica 57%Sativa 43%

Strain Data Sheet

๐ŸงฌTHC19% - 23% (Medium-High)
๐ŸŒฟLineageAutoflowering Balanced Hybrid (Undisclosed Lineage)
๐Ÿ”ฌTypeAutoflower Hybrid
๐ŸŒกClimateAll climates (adaptable)
๐Ÿ“…Harvestโ‰ˆ 10 โ€“ 11 weeks from seed (typical)
๐Ÿ“Height60 - 90 cm
โš–๏ธYieldMedium โ€“ High
๐Ÿ Yield Indoor455 - 540 g/m2
๐ŸŒณYield Outdoor85 - 170 g/plant
โฑFlowering Time55-65 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers are responsible for complying with the law where they live.
1
Corkscrew Auto
royalkingseeds.co.nz
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๐Ÿ”’Sealed for authenticity
๐Ÿ’งWaterproof coating
๐Ÿ›ก๏ธAluminium interior lining
๐Ÿท๏ธProtective sticker
๐Ÿ“ฑQR code verification
๐Ÿ”ขScratchable serial number

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Corkscrew Auto โ€” Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics โ€” our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F5
Generations
5+
Breeding Programme
Autoflower Programme โ€” five-generation auto trait fixing
Stabilisation Notes โ€” 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 โ€” 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 โ€” pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
29 December 2025ยท 95% germination guarantee