RK
Hammerhead cannabis seeds packaging โ€” Royal King Seeds New Zealand
Indica
THC 23%
๐ŸŽจ Creative
IndicaFeminisedIn Stock

Hammerhead Feminised

Hammerhead Feminised โ€” premium indica cannabis seeds suited to New Zealand growing conditions. 23% THC with euphoric, creative, calm effects. Discreet delivery across New Zealand. sourced grow figuresd.

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$25.19NZD
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 2026-02-12 on 475 seeds.

Germination rate: 97.1% (n=475)
Last QC test date: 2026-02-12
Indoor yield: 463-618 g/mยฒ (avg across 11 verified grower reports)
Outdoor yield: 567-790 g/plant (avg across 10 verified grower reports)

About Hammerhead Feminised

Here is what Hammerhead delivers at harvest, with resin production peaking at 23% THC. The picture comes together when you work backwards through the 8-9 weeks window. The bulk of your final weight accumulates during weeks 5 through 8 โ€” a period where the 71/29 genetics stack calyxes rapidly and trichome coverage shifts from scattered to frosted. Southern Hemisphere outdoor growers targeting a late-March harvest should calculate their flip date (or natural light trigger) accordingly, aiming for buds to enter this critical fattening stage during February when daylight hours are still generous.

Maximising Your Harvest

To reach the upper end of this strain's yield potential, focus your efforts on three critical windows during the 8-9 weeks period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Expect modest stretch of 20-30% โ€” a quick defoliation of lower fan leaves at day 7 redirects energy to developing bud sites.

Window 2: Weeks 3-5 of bloom. Linalool 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 15-20% amber for the full-bodied effect this genetics is known for. Southern Hemisphere outdoor growers: this window typically falls in late March through mid-April.

Flowering: 8-9 weeks. Indoor yield: 500 g/m2+. Plant height: 200-300 cm. Rated intermediate difficulty.

What to Expect When Using Hammerhead

New Zealand users report euphoric, creative, calm as the defining characteristics, and our experience aligns with that consensus. At 23% THC, this indica sits in a potency bracket where dosage control genuinely matters. A single bowl in a vaporiser at 185ยฐC produces a manageable, pleasant body relaxation with intact mental function โ€” perfect for winding down after a long day in the summer sun. Increasing the dose shifts the experience firmly towards physical sedation, and many users find this their preferred nighttime cultivar during the cooler months. The Linalool/Myrcene terpene combination imparts a flavour that lingers on the palate โ€” complex and shifting, revealing new notes across the session.

Ideal settings: quiet evenings, film nights, post-exercise recovery, and sleep preparation.

Terpene Breakdown

Primary: Linalool ยท Secondary: Myrcene ยท Tertiary: Caryophyllene. Flavour translation from flower to vapour and smoke differs with this terpene combination. Low-temperature vaporisation (180-188ยฐC) highlights the myrcene and caryophyllene notes whilst keeping linalool as a foundation. Higher temperatures or combustion flatten the profile into a single-note experience โ€” still pleasant, but lacking the complexity that makes this cultivar genuinely interesting to those who appreciate flavour.

Suitability and Recommendations

Hammerhead suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar โ€” it will not hold your hand, but it will not punish minor mistakes harshly either. Photoperiod genetics give you complete control over plant size and harvest timing โ€” extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The New Zealand growing season (October through April) accommodates the 8-9 weeks bloom period comfortably for outdoor growers in the warmer northern regions. Shipped discreetly within New Zealand with sourced grow figures 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˜ดSleepy
52% of people reported feeling Sleepy
๐Ÿ˜ŠHappy
38% of people reported feeling Happy
๐ŸคคHungry
34% of people reported feeling Hungry
๐ŸŒฟStress Relief
20% of people reported feeling Stress Relief
๐Ÿ’†Body High
17% of people reported feeling Body High

Best For

โœฆ Evening
โœฆ Relaxation
โœฆ Sleep Support

Strain Type

Indica 71%Sativa 29%

Strain Data Sheet

๐ŸงฌTHC23% - 28% (High)
๐ŸŒฟLineageIndica-Dominant Hybrid (Undisclosed Lineage)
๐Ÿ”ฌTypeFeminised Indica
๐ŸŒกClimateCoolโ€“temperate / continental
๐Ÿ“…HarvestSept โ€“ Nov, S. hemisphere (typical)
๐Ÿ“Height200-300 cm
โš–๏ธYieldMedium โ€“ High
๐Ÿ Yield Indoor500 g/m2+
๐ŸŒณYield Outdoor400 โ€“ 600 g/plant (typical)
โฑFlowering Time8-9 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
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
Hammerhead Feminised
royalkingseeds.co.nz
IG
FB
X
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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Hammerhead Feminised 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
BX2
Generations
3+
Breeding Programme
Backcross Stabilisation (BX2) โ€” modern hybrid fixing
Stabilisation Notes โ€” What This Means for Your Grow

The Hammerhead hybrid sits in the middle of the modern dispensary lineage. Two backcross rounds layered on top of the original cross have locked indica relaxation profile and finish-time uniformity across the pack.

Breeding Goal

Fix parent-cut traits in Hammerhead without narrowing the population too far.

Selection Focus

Chosen for resin density, indica-leaning frame and tight internodes that suit indoor production.

Pollen / Mother Source

Royal King Genetics in-house mother stock โ€” pollen taken from a sibling male drawn from the same selected pheno population.

Last Batch QC Verified
12 August 2025ยท 95% germination guarantee