Rockstar cannabis seeds packaging — Royal King Seeds New Zealand
Hybrid
THC 18%
🌙 Sleep Aid
HybridFeminisedIn Stock

Rockstar Feminised

Grow Rockstar Feminised in New Zealand. Hybrid genetics testing at 18% THC. Known for happy, relaxed, sleepy 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 2026-03-03 on 475 seeds.

Germination rate: 98.1% (n=475)
Last QC test date: 2026-03-03
Indoor yield: 444-578 g/m² (avg across 12 verified grower reports)
Outdoor yield: 486-666 g/plant (avg across 3 verified grower reports)

About Rockstar Feminised

Where you grow Rockstar in New Zealand matters enormously. Northland cultivators dealing with 35°C+ summers and oppressive humidity need to approach this 50/50 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 50/50 ratio produces a canopy structure with enough airflow for subtropical conditions whilst retaining sufficient density for impressive bag appeal in cooler southern grows. At 18% THC with caryophyllene 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 Rockstar 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 56-63 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: 56-63 days. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of Rockstar unfolds in stages. Initial inhalation at 18% THC brings a warm peppery spice that tingles at the back of the throat. The happy, relaxed, sleepy 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 limonene secondary terpene adds a distinct layer: a mood-elevating brightness that counterbalances any heaviness.

Terpene Breakdown

Primary: Caryophyllene · Secondary: Limonene · Tertiary: Myrcene. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with caryophyllene presence, but after three to four weeks in sealed glass jars at 16-18°C, the myrcene 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 myrcene molecules first.

Suitability and Recommendations

Who grows Rockstar 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

😊Happy
72% of people reported feeling Happy
😌Relaxed
65% of people reported feeling Relaxed
😴Sleepy
65% of people reported feeling Sleepy
🤩Creative
56% of people reported feeling Creative
🤗Euphoric
47% of people reported feeling Euphoric
😎Uplifted
38% of people reported feeling Uplifted
🤤Hungry
34% of people reported feeling Hungry
😆Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Best For

Evening
Insomnia
Pain
Stress

Strain Type

Indica 50%Sativa 50%

Strain Data Sheet

🧬THC18% - 23% (Medium-High)
🌿LineageRockbud × Sensi Star
🔬TypeFeminised Hybrid
🌡ClimateTemperate, adaptable
📅HarvestSept – Nov, S. hemisphere (typical)
📏Height100 – 160 cm (typical)
⚖️YieldMedium – High
🏠Yield Indoor400 – 500 g/m² (typical)
🌳Yield Outdoor400 – 600 g/plant (typical)
Flowering Time56-63 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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Rockstar Feminised
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💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Rockstar 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

A late-2010s cross stabilised over four generations of selection. Rockstar grows true-to-type with the cross-derived trait balance that defines the cultivar.

Breeding Goal

Cull off-type phenos in Rockstar through filial selection.

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
11 March 2026· 95% germination guarantee