Romulan Haze cannabis seeds packaging — Royal King Seeds Australia
Indica
THC 19%
🌙 Sleep Aid
IndicaFeminizedIn Stock

Romulan Haze Feminized

S1 FeminizedSee Lab Report →

Romulan Haze Feminized cannabis seeds for Australian growers. Indica strain · 19% THC · relaxed, sleepy, happy. Discreet packaging, Australia-wide delivery, germination guarantee.

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$10.99AUD
1
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🌱Germination Promise
🔒Unmarked Packaging

Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Australian grower submissions, not breeder marketing. Determined from a single batch tested 2026-03-01 on 275 seeds.

Germination rate: 97.6% (n=275)
Last QC test date: 2026-03-01
Indoor yield: 486-656 g/m² (avg across 10 verified grower reports)
Outdoor yield: 638-892 g/plant (avg across 9 verified grower reports)

About Romulan Haze Feminized

Open a jar of properly cured Romulan Haze and the first impression is unmistakably caryophyllene — a warm, peppery spice that registers almost as heat on the palate, layered with dried clove and sandalwood. Beneath this primary note, myrcene introduces a deep earthy foundation that emerges mid-palate. This 68/32 indica tests at 19% THC, but the sensory journey is what distinguishes Romulan Haze from other cultivars at comparable potency. Think of it like comparing a single-origin wine to a blended table variety — the numbers might overlap, but the experience diverges sharply.

Developing the Full Flavour Profile

Growing Romulan Haze for maximum terpene expression requires deliberate choices that differ from growing purely for yield. The Caryophyllene/Myrcene/Bisabolol profile responds particularly well to organic living soil — the microbial activity in a well-established no-till bed creates secondary metabolites that synthetic nutrients simply cannot replicate. Australian growers have access to excellent local compost and worm casting suppliers that make this approach practical.

During the 9-11 weeks flowering period, avoid foliar sprays after week 2 — anything deposited on developing trichomes compromises the aromatic purity at harvest. Temperature manipulation in the final three weeks profoundly influences which terpenes dominate the cured flower: cooler night temperatures (16-18°C) amplify caryophyllene expression, whilst warmer finishes preserve the lighter bisabolol top notes.

The cure is where most Australian growers leave flavour on the table. After a 10-14 day hang dry at 15-18°C and 55-60% relative humidity (a challenge in Australian summers — a climate-controlled room or wine fridge set to 16°C works brilliantly), transfer to glass jars and burp twice daily for the first fortnight. The myrcene secondary notes that make this strain genuinely special only emerge after 21-28 days of jar curing. Patience transforms a good flower into a remarkable one.

Indoor yield: 450-550g/m². Outdoor yield: 400-600g/plant. Plant height: Short-Medium (60-105cm). Difficulty: intermediate.

Flavour, Aroma, and Experience

The sensory arc of Romulan Haze unfolds in stages. Initial inhalation at 19% THC brings a warm peppery spice that tingles at the back of the throat. The relaxed, sleepy, happy effects emerge within minutes, beginning as a pleasant heaviness behind the eyes that migrates downward through the shoulders, chest, and limbs. By the fifteen-minute mark, a deep physical stillness sets in — not sedation exactly, but a reluctance to move that makes the couch remarkably appealing. Duration runs 2-3 hours at moderate doses. The myrcene secondary terpene adds a distinct layer: additional body depth that reinforces the physical dimension.

Terpene Breakdown

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

Suitability and Recommendations

Who grows Romulan Haze 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 Australia-wide in discreet, unbranded packaging with germination guarantee included.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😴Sleepy
72% of people reported feeling Sleepy
😊Happy
58% of people reported feeling Happy
🤤Hungry
54% of people reported feeling Hungry
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

Evening
Relaxation
Sleep Support

Strain Type

Indica 68%Sativa 32%

Strain Data Sheet

🧬THC19% - 23% (Medium-High)
🌿LineageGrape Ape × Bubba Kush
🔬TypeFeminized Indica
🌡ClimateCool, Temperate
📅HarvestEarly - Mid October
📏Height89 - 148 cm
⚖️YieldMedium - High
🏠Yield Indoor369 - 488 g/m²
🌳Yield Outdoor419 - 538 g/plant
Flowering Time8 - 10 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable Australian Commonwealth, state, and territory legislation.
1
Romulan Haze Feminized
royalkingseeds.au
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Romulan Haze Feminized — 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
F5 IBL
Generations
5+
Breeding Programme
Royal King Genetics IBL — heritage cultivar restabilisation
Stabilisation Notes — What This Means for Your Grow

A genuine F5 inbred line. Romulan Haze has been progressed through five filial generations of phenotype selection at Royal King Genetics, working from the original mid-2010s reference stock. Population uniformity is the rule rather than the exception.

Breeding Goal

Restabilise a mid-2010s cultivar to contemporary uniformity standards.

Selection Focus

Chosen for indica vigour, compact bud formation and a reliable finish window.

Pollen / Mother Source

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

Last Batch QC Verified
15 September 2025· 99%+ germination
RK

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