Purple Star cannabis seeds packaging — Royal King Seeds Australia
IndicaAuto
THC 10%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Purple Star Auto

Auto F3See Lab Report →

Grow Purple Star Auto in Australia. Indica genetics testing at 10% THC. Known for relaxed, sleepy, happy effects. Ships discreetly Australia-wide with germination guarantee.

Select Pack Size
$11.99AUD
1
🇦🇺Free AU Delivery
🌱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 2026-04-24 on 100 seeds.

Germination rate: 97.9% (n=100)
Last QC test date: 2026-04-24
Indoor yield: 428-556 g/m² (avg across 16 verified grower reports)
Outdoor yield: 484-832 g/plant (avg across 7 verified grower reports)

About Purple Star Auto

Here is what Purple Star actually delivers at harvest: 400-500g/m² per square metre indoors, 350-500g/plant per plant outdoors in Australian conditions, with resin production peaking at 10% THC across tested samples. Those numbers tell a story when you work backwards through the 8-10 weeks flowering window. The bulk of your final weight accumulates during weeks 5 through 8 — a period where the 68/32 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 Australian daylight hours are still generous.

Maximising Your Harvest

To reach the upper end of yield potential (400-500g/m² indoors, 350-500g/plant outdoors), focus your efforts on three critical windows during the 8-10 weeks flowering 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% — a quick defoliation of lower fan leaves at day 7 redirects energy to developing bud sites.

Window 2: Weeks 3-5 of bloom. Myrcene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8°C to encourage terpene accumulation — Australian autumn evenings (March-April) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26°C during lights-on and 18-20°C 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 — 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.

Plant height: Compact (60-90cm). Difficulty: intermediate.

Flavour, Aroma, and Experience

The sensory arc of Purple Star unfolds in stages. Initial inhalation at 10% THC brings a deep, musky earthiness that coats the palate. 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 caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.

Terpene Breakdown

Primary: Myrcene · Secondary: Caryophyllene · 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

Who grows Purple Star successfully? Balcony growers in apartment blocks from Sydney to Perth. Regional cultivators wanting a quick-turnaround outdoor crop. Indoor growers with limited headroom in small tents. The autoflowering genetics run on their own internal clock — no light schedule adjustments, no stress about light leaks, and harvest arrives 10-12 weeks after germination regardless of the season. 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

🧬THC10% - 13% (Medium)
🌿LineageGranddaddy Purple × Bubba Kush
🔬TypeAutoflower Indica
🌡ClimateAll Climates (Adaptable)
📅Harvest8 - 10 weeks from seed
📏Height75 - 130 cm
⚖️YieldMedium - High
🏠Yield Indoor355 - 460 g/m²
🌳Yield Outdoor185 - 390 g/plant
Flowering Time8 - 10 weeks (seed to harvest)

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
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
Purple Star Auto
royalkingseeds.au
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

$100 OG cannabis seeds packaging — Royal King Seeds Australia
Hybrid
THC 25%
High Potency

$100 OG Feminized

HappyHungryRelaxed
$13.99AUD
Hippie Crippler cannabis seeds packaging — Royal King Seeds Australia
Hybrid
THC 25%
High Potency

Hippie Crippler Feminized

EuphoricHappyUplifted
$12.99AUD
Badazz Cheese cannabis seeds packaging — Royal King Seeds Australia
Indica
THC 18%
🎨 Creative

Badazz Cheese Feminized

EuphoricCreativeCalm
$15.99AUD
9 Pound Hammer cannabis seeds packaging — Royal King Seeds Australia
Indica
THC 23%
🌙 Sleep Aid

9 Pound Hammer Feminized

RelaxedSleepyHappy
$13.49AUD

Purple Star Auto — 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
Generations
5+
Breeding Programme
Autoflower Stabilisation (F5) — ruderalis trait fixing
Stabilisation Notes — What This Means for Your Grow

Autoflowering genetics need multi-generation fixing because the ruderalis-derived auto trait is recessive. Purple Star sits at F5 — every plant in the pack autoflowers reliably and finishes inside a tight window.

Breeding Goal

Stabilise the recessive ruderalis trait in Purple Star for uniform auto-trigger.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

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

Last Batch QC Verified
31 October 2025· 99%+ germination
RK

Royal King Seeds AI

Strain expert & grow advisor

🌱

How can I help?

I can recommend strains, give growing tips, compare products, and add items to your cart.

AI can recommend strains, compare products & add to cart