Kush XL cannabis seeds packaging — Royal King Seeds Australia
Indica
THC 17%
🌙 Sleep Aid
IndicaFeminizedIn Stock

Kush XL Feminized

S1 FeminizedSee Lab Report →

Kush XL Feminized — premium indica cannabis seeds suited to Australian growing conditions. 17% THC with relaxed, sleepy, happy effects. Discreet delivery across Australia. Germination guaranteed.

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$14.49AUD
1
🇦🇺Free AU Delivery
🌱Germination Promise
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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 2026-02-18 on 400 seeds.

Germination rate: 97.0% (n=400)
Last QC test date: 2026-02-18
Indoor yield: 461-626 g/m² (avg across 9 verified grower reports)
Outdoor yield: 633-826 g/plant (avg across 8 verified grower reports)

About Kush XL Feminized

Where you grow Kush XL in Australia matters enormously. Queensland cultivators dealing with 35°C+ summers and oppressive humidity need to approach this 68/32 indica differently than someone in Tasmania's mild maritime climate or Victoria's temperamental shoulder seasons. In tropical and subtropical zones, the dense flower architecture at 17% THC creates a genuine mould risk once relative humidity climbs past 65% — coastal QLD and northern NSW growers should prioritise airflow management above all else. Move south to Melbourne or Adelaide, and that same density becomes an asset: cooler autumn nights intensify the myrcene terpene expression and the compact frame handles wind exposure without staking.

Australian Climate Considerations

Indoor cultivators can control their environment regardless of location, but Kush XL rewards specific adjustments for Australian 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. QLD/Northern NSW: 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 9-11 weeks bloom period, but start seeds indoors by late September to maximise vegetative growth before the December solstice. WA: Perth 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 Perth postcodes run above 500ppm total dissolved solids.

Flowering: 9-11 weeks. Indoor yield: 350-450g/m². Outdoor yield: 600-800g/plant. Plant height: Medium (90-120cm). Rated intermediate difficulty.

What to Expect When Using Kush XL

Australian users report relaxed, sleepy, happy as the defining characteristics, and our experience aligns with that consensus. At 17% THC, this indica sits in a potency bracket where dosage control genuinely matters. A single bowl in a vaporiser at 185°C produces a manageable, pleasant body relaxation with intact mental function — perfect for winding down after a long day in the Australian 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 Myrcene/Humulene terpene combination imparts a flavour that lingers on the palate — earthy and slightly sweet with a fruit-like finish.

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

Terpene Breakdown

Primary: Myrcene · Secondary: Humulene · Tertiary: Linalool. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with myrcene 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

Kush XL suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar — 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 — extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The Australian growing season (October through April) accommodates the 9-11 weeks bloom period comfortably for outdoor cultivators in all states. Shipped discreetly throughout Australia with our germination guarantee.

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

🧬THC17% - 20% (Medium-High)
🌿LineageGrape Ape × Bubba Kush
🔬TypeFeminized Indica
🌡ClimateContinental, Temperate
📅HarvestLate September - Early October
📏Height82 - 134 cm
⚖️YieldHigh
🏠Yield Indoor392 - 584 g/m²
🌳Yield Outdoor592 - 734 g/plant
Flowering Time7 - 9 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
Kush XL Feminized
royalkingseeds.au
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FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

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Kush XL 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
BX3
Generations
4+
Breeding Programme
Royal King Genetics Backcross Line — BX3 clone-only restabilisation
Stabilisation Notes — What This Means for Your Grow

Three rounds of backcrossing to the parental line have welded the Kush XL cut into the population. The compact internode spacing that made the original mother famous now expresses across the whole pack — not just in one or two lucky phenos.

Breeding Goal

Pin the compact internode spacing of the elite cut into the population.

Selection Focus

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

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

Last Batch QC Verified
24 July 2025· 99%+ germination
RK

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