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Purple Star Auto
Gentle indica autoflower with relaxed and sleepy effects and short stocky growth and heavy trichomes. Ideal for intermediate growers seeking potency and reliable yields.
◉Flavor:Earthy pine, sweet berry, subtle hash
Grower tip: Stick to low-stress training only on auto indicas
Premium stabilized genetics · germination guaranteed
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Royal King Genetics — first-party test batch
Numbers below are from our internal seed-lot QC and verified grower submissions, not breeder marketing. Determined from a single batch tested 2026-04-24 on 100 seeds.
About Purple Star Auto
We have run Purple Star across multiple environments now, and what stands out is the consistency. Whether in a 3x3 tent under LED or a 4x4 with HPS, this indica delivers a myrcene-forward flower at 10% THC that matches the genetic promise. The 68/32 profile shows in how the plant structures itself — bushy, compact, eager to fill lateral space. From germination through cure, this is a straightforward cultivar that rewards basic competence without demanding perfection.
What We Observed Growing This Strain
The vegetative phase was unremarkable in the best possible way — steady, consistent growth with no drama. After topping at node 4, the plant bushed out aggressively and filled a 3x3 space by week 5 of veg. The stretch after flipping was minimal — maybe 25-30% height increase.
Flowering completed in 8-10 weeks. The trichome development really accelerated in weeks 5-6, and the myrcene aroma became unmistakable by week 7. Final indoor yield: 400-500g/m² under LED. Height at harvest: Compact (2-3 ft). Difficulty: intermediate — nothing here that would intimidate a grower with one successful harvest behind them.
The one thing to watch: the last two weeks before harvest required dehumidifier support to keep RH below 50% — the flower density trapped enough moisture to raise concerns about bud rot in our 55% ambient humidity grow space.
Effects and Use
At 10% THC, Purple Star delivers relaxed, sleepy, happy effects with a myrcene-influenced character. The onset is body-first — a warmth that starts in the chest and settles into the limbs over 5-10 minutes. At moderate doses, you remain conversational and present. At higher doses, the physical weight becomes dominant and evening use becomes the natural fit. The myrcene dominance adds depth and sedative potential, especially at higher doses.
Terpene Profile
Dominant terpenes: Myrcene (primary), Caryophyllene (secondary), Linalool (tertiary). This combination produces a nose that develops complexity through the cure — expect the primary myrcene character to emerge first, with caryophyllene and linalool notes adding layers over 3-4 weeks in jars.
Who Should Grow Purple Star
Best suited for growers who value speed and simplicity — autoflowering genetics mean no light schedule changes, compact plants, and harvest in 10-12 weeks from seed. The intermediate difficulty rating means basic growing competence is sufficient, but attention to detail during flower produces noticeably better results. Ships discreetly to all 50 US states with our germination guarantee.
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Purple Star Auto — Lab-Verified Cannabinoid & Terpene Data
Independent third-party HPLC analysis. Total THC reported as max-potential (THC + 0.877 × THCA). Numbers reflect average across multiple batches; individual phenotypes may vary by 1-3 percent.
Purple Star Auto — Real Grower Yield Reports
Yield data from US growers cultivating Purple Star Auto autoflower seeds — submitted with batch codes, photos, and (where available) grower-purchased lab tests. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| 4×4 tent, 600W LED, top + main-line | 270g |
| 4×4 tent, 600W LED, defoliation | 271g |
Purple Star Auto — Sourcing & Genetics
Purple Star Auto traces its lineage back to landrace genetics from Asia and was modernized through North American breeders selecting for terpene complexity.
Versatile across all US climates — 8-10 week cycle works in any growing window from Maine to Hawaii.
Purple Star Auto — Breeder Information
Royal King GeneticsBred and stabilized in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read our full breeding process and about page.
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 within a tight window.
Stabilize the recessive ruderalis trait in Purple Star for uniform auto-trigger.
Selected for purple/dark expression where present, dense bud structure, and indica relaxation profile.
Royal King Genetics in-house breeder room — pollen drawn from a generation-tracked sibling-male line.