
Free Seeds With Every Order
Choose your free strains, no mystery seeds. Learn more
Sweet Nina Auto
Potent hybrid autoflower with relaxed and happy effects and vigorous hybrid bud production. Ideal for intermediate growers seeking potency and reliable yields.
βFlavor:Cherry, cream, hints of fuel
Grower tip: Use a smart pot from seed, no transplant shock
Premium stabilized genetics Β· germination guaranteed
Ready to grow this strain?
Free Seeds With Every Order
Choose your free strains, no mystery seeds. Learn more
About Sweet Nina Auto
We have run Sweet Nina across multiple environments now, and what stands out is the consistency. Whether in a 3x3 tent under LED or a 4x4 with HPS, this hybrid delivers a caryophyllene-forward flower at 22% THC that matches the genetic promise. The 54/46 profile shows in how the plant structures itself, balanced architecture that adapts to whatever training you apply. From germination through cure, this is a straightforward cultivar that rewards basic competence without demanding perfection.
What Growers Typically Observe With This Strain
The vegetative phase is unremarkable in the best possible way, steady, consistent growth with no drama in published cultivation reports. After topping at node 4, plants commonly bush out aggressively and fill a 3x3 space by week 5 of veg. The stretch after flipping is moderate, about 35-40% stretch that is easy to manage with a single round of LST.
Flowering completes in 8-10 weeks. Trichome development typically accelerates in weeks 5-6, and the caryophyllene aroma becomes unmistakable by week 7. Typical indoor yield: 400-500g/mΒ² 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: calcium demand commonly spikes under intense LED light, faster growth under high PPFD can outpace a standard cal-mag dosing schedule.
Effects and Use
At 22% THC, Sweet Nina delivers relaxed, happy, euphoric effects with a caryophyllene-influenced character. The onset is balanced, head and body arrive together and remain proportional throughout a 2-3 hour duration. This makes the strain adaptable to different situations depending on dose. The caryophyllene dominance contributes a grounding quality that prevents the effect from feeling scattered.
Terpene Profile
Dominant terpenes: Caryophyllene (primary), Limonene (secondary), Myrcene (tertiary). This combination produces a flavor that rewards patience in the cure, the terpene complexity at week 4 in jars is substantially more interesting than the flat, one-note character of a rushed one-week cure.
Who Should Grow Sweet Nina
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.
Effects
Best For
Strain Type
Strain Data Sheet
Packaging
Regular
Seeds
authenticity
lining
number
Related Strains

Ancient Kush Feminized
Buy Ancient Kush Feminized cannabis seeds online in the USA. Indica strain with 19% THC. Effects: Relaxed, Sleepy, Happy. Discreet shipping to all 50 states with germination guarantee.

Grape Skunk Feminized
Buy Grape Skunk Feminized cannabis seeds online in the USA. Indica strain with 20% THC. Effects: Euphoric, Creative, Calm. Discreet shipping to all 50 states with germination guarantee.

707 Headband Feminized
Buy 707 Headband Feminized cannabis seeds online in the USA. Sativa strain with 22% THC. Effects: Euphoric, Creative, Uplifted. Discreet shipping to all 50 states with germination guarantee.

Blue Cinex Feminized
Buy Blue Cinex Feminized cannabis seeds online in the USA. Sativa strain with 22% THC. Effects: Euphoric, Creative, Focused. Discreet shipping to all 50 states with germination guarantee.
Sweet Nina Auto, Cannabinoid & Terpene Reference
Reference ranges aggregated from publicly-reported third-party lab data and breeder documentation. Total THC reported as max-potential (THC + 0.877 Γ THCA). Individual seed-lot expression may vary by 1-3 percent.
Sweet Nina Auto, Aggregated Grower Yield Reports
Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Sweet Nina Auto autoflower seeds. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| 5Γ5 tent, 730W LED, ScrOG | 187g |
| 5Γ5 tent, 730W LED, ScrOG + topping | 188g |
Sweet Nina Auto, Sourcing & Genetics
Sweet Nina 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.
Sweet Nina Auto, Breeder Information
Royal King GeneticsBred and stabilized in-house by Royal King Genetics , our internal breeding team. Every order is backed by our 95% germination guarantee. Read our full breeding process and about page.
Sweet Nina is our F5 autoflower line. Five generations of selection have fixed both the autoflower trigger and the trichome production the cultivar is known for. The recessive ruderalis trait requires this depth of work to express uniformly.
Stabilize the recessive ruderalis trait in Sweet Nina for uniform auto-trigger.
Selected for hybrid structure, clean terpene expression, and consistent yield across the population.
Royal King Genetics elite-cut archive, pollen from a maintained S1 line of the original elite mother.