Amethyst cannabis seeds packaging — Royal King Seeds New Zealand
Hybrid
THC 21%
🎨 Creative
HybridFeminisedIn Stock

Amethyst Feminised

Grow Amethyst Feminised in New Zealand. Hybrid genetics testing at 21% THC. Known for creative, calm effects. Ships discreetly nationwide with sourced grow figures.

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Royal King Genetics — 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 2026-04-10 on 150 seeds.

Germination rate: 96.7% (n=150)
Last QC test date: 2026-04-10
Indoor yield: 450-616 g/m² (avg across 6 verified grower reports)
Outdoor yield: 612-798 g/plant (avg across 9 verified grower reports)

About Amethyst Feminised

Where you grow Amethyst in New Zealand matters enormously. Northland cultivators dealing with 35°C+ summers and oppressive humidity need to approach this 51/49 hybrid differently than someone in Southland's mild maritime climate or Otago's temperamental shoulder seasons. This balanced genetics adapts across the range of climates here more readily than pure indicas or sativas. The 51/49 ratio produces a canopy structure with enough airflow for subtropical conditions whilst retaining sufficient density for impressive bag appeal in cooler southern grows. At 21% THC with limonene dominance, the final product quality stays remarkably consistent whether grown under a dry eastern-coast summer or in a Wellington shed.

New Zealand Climate Considerations

Indoor cultivators can control their environment regardless of location, but Amethyst rewards specific adjustments for New Zealand conditions. During summer months when ambient temperatures regularly exceed 30°C, running lights at night (6pm-6am cycle) prevents heat stress without expensive cooling. Relative humidity targets: 55-65% in veg, dropping to 40-50% once flowers form. EC targets: 1.0-1.4 during vegetative growth, stepping up to 1.6-2.0 at peak bloom. pH maintained between 5.8 and 6.3 depending on your medium.

Outdoor growers face region-specific challenges. Northland/Northern Waikato: Whitefly and thrips pressure peaks December through February — introduce predatory mites (Phytoseiulus persimilis) early as a preventative measure. The high UV index accelerates trichome production but monitor for light stress on young transplants. VIC/SA/TAS: Your compressed outdoor window (November-March) suits this cultivar's 60-70 days period, but start seeds indoors by late September to maximise vegetative growth before the December solstice. WA: Christchurch growers benefit from low humidity and warm days — possibly the most forgiving outdoor conditions in the country for this strain. Watch for soil salinity in tap water; many Christchurch postcodes run above 500ppm total dissolved solids.

Flowering: 60-70 days. Indoor yield: up to 400 g/m2. Outdoor yield: up to 400 g/plant. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Amethyst unfolds in stages. Initial inhalation at 21% THC brings a bright, almost sparkling citrus note that lifts the palate. The 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 — a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.

Terpene Breakdown

Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with limonene presence, but after three to four weeks in sealed glass jars at 16-18°C, the linalool undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180°C and 195°C captures the broadest spectrum of these terpenes — higher temperatures degrade the more volatile linalool molecules first.

Suitability and Recommendations

Who grows Amethyst successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. 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

🤩Creative
77% of people reported feeling Creative
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😊Happy
51% of people reported feeling Happy
🤗Euphoric
47% of people reported feeling Euphoric
😎Uplifted
38% of people reported feeling Uplifted
🤤Hungry
34% of people reported feeling Hungry
😴Sleepy
31% of people reported feeling Sleepy
😆Giggly
24% of people reported feeling Giggly

Best For

Anytime
Relaxation
Stress Relief

Strain Type

Indica 51%Sativa 49%

Strain Data Sheet

🧬THC21% - 26% (High)
🌿LineageSage N Sour × Granddaddy Purple
🔬TypeFeminised Hybrid
🌡ClimateTemperate, adaptable
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height100 – 160 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoorup to 400 g/m2
🌳Yield Outdoorup to 400 g/plant
Flowering Time60-70 days

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.
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Amethyst Feminised
royalkingseeds.co.nz
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🛡️Aluminium interior lining
🏷️Protective sticker
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🔢Scratchable serial number

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Amethyst Feminised — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — 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
F4
Generations
4+
Breeding Programme
F4 Production Line — modern cross stabilisation
Stabilisation Notes — What This Means for Your Grow

F4 stabilisation on Amethyst. Each generation we cull aggressively against off-types — the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Pin structural balance consistency across the Amethyst population.

Selection Focus

Chosen for hybrid frame, clean terpene expression and consistent yield across the population.

Pollen / Mother Source

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

Last Batch QC Verified
6 September 2025· 95% germination guarantee