Neptune OG autoflower cannabis flower
IndicaAuto
THC 15%
⏱ Autoflower
IndicaAutoflowerIn Stock

Neptune OG Auto

Mellow indica autoflower with euphoric and calm effects and tight node spacing. Ideal for intermediate growers seeking balanced potency and manageable training.

β—‰Flavor:Blueberry, vanilla, warm spice

Best for:πŸŒ™EveningπŸ›‹οΈRelaxation😴Sleep Support
Intermediate Grower
🧬
THC
15%
⏱
Flower
50-60 days
βš–οΈ
Yield
Medium
🎯
Difficulty
Intermediate
πŸ“
Height
Short
🌱
Grow
Indoor / Outdoor
πŸ’‘

Grower tip: Harvest when 70–80% of trichomes turn cloudy

Select Pack Size
$13.49USD

Premium genetics

βœ“Rewards careful growers with medium output per plant
βœ“Delivers euphoric and calm effects ideal for evening
βœ“Proven indica lineage with reliable germination and vigor

Ready to grow this strain?

1
β˜…Stabilized line, consistent across batches
🎁

Free Seeds With Every Order

Spend $30+
1 Free
Spend $75+
5 Free
Best
Spend $200+
15 Free

Choose your free strains, no mystery seeds. See how to get free seeds with every order

πŸ‡ΊπŸ‡ΈFree Shipping
🌱Germination Guarantee
πŸ”’Tracked Shipping
Popular strain, limited batches available
⭐Royal King Seeds offers a 95% germination guarantee (subject to policy)

About Neptune OG Auto

The most common mistake growers make with Neptune OG is underestimating how dense the flower structure gets in weeks 6-8, leading to humidity problems inside the buds when airflow is inadequate. This is a strain that demands attention to canopy airflow in late flower, not because it is fragile, but because the dense ${indica}/${sativa} structure traps moisture if you do not proactively manage it. At 15% THC with linalool-dominant terpenes, the quality ceiling is high, but you have to manage the specific characteristics of this cultivar to reach it.

Growing This Strain: Where Things Go Right and Wrong

The three most common issues growers report with Neptune OG:

1. Nutrient timing at the flip. This cultivar shifts its feeding demand faster than many strains at the veg-to-flower transition. Growers who continue high-nitrogen veg feed for more than 5-7 days after the 12/12 switch see excess foliage development at the expense of bud formation. Switch to bloom nutrients within the first week of seeing pistils.

2. Late-flower humidity. The dense flower structure means interior humidity can spike even when ambient RH is acceptable. Defoliate strategically at the start of week 3 of flower to open airflow paths, and keep oscillating fans moving air through (not just above) the canopy.

3. Harvest timing. With linalool as the dominant terpene, the aromatic peak does not align perfectly with the trichome maturity peak. Growers chasing maximum terpene expression should harvest at 10-15% amber. Growers prioritizing potency should wait for 15-20% amber. These are different windows, know which one you are targeting.

Flowering: 50-60 days. Yield: up to 200 g/m2 indoor / up to 300 g/plant outdoor. Height: 3 feet. Difficulty: intermediate.

What Users Report

Neptune OG at 15% THC produces euphoric, calm sensations that users consistently describe as physically comforting without being immobilizing at moderate doses. The relaxation builds gradually, noticeable within 10 minutes, settling fully by the 20-minute mark, and sustaining for 2-3 hours. The Linalool/Myrcene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other indicas at similar THC levels.

Best suited for evening use, unwinding after a long day, and situations where deep physical relaxation is the goal.

Terpene Profile

Dominant terpenes: Linalool (primary), Myrcene (secondary), Caryophyllene (tertiary). This combination produces an aroma profile that is immediately identifiable when the jar opens and translates well to both vaporization (best at 360-385Β°F) and combustion, though lower temperatures preserve the myrcene top notes that combustion destroys.

Who Should Grow Neptune OG

This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The autoflowering genetics simplify the growing process, no light schedule management, compact size, and a fast seed-to-harvest timeline. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 50-60 days flowering period to their frost-free window.

Effects

πŸ€—Euphoric
74% of people reported feeling Euphoric
🧘Calm
67% of people reported feeling Calm
😌Relaxed
58% of people reported feeling Relaxed
😴Sleepy
58% of people reported feeling Sleepy
😊Happy
45% of people reported feeling Happy
🀀Hungry
41% of people reported feeling Hungry
🌿Stress Relief
27% of people reported feeling Stress Relief
πŸ’†Body High
24% of people reported feeling Body High
πŸ˜Άβ€πŸŒ«οΈSedated
21% of people reported feeling Sedated

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 76%Sativa 24%

Strain Data Sheet

🧬THC15% - 20% (Medium-High)
🌿LineageAutoflowering indica (Undisclosed Lineage)
πŸ”¬TypeAutoflower Indica
🌑ClimateAll climates (adaptable)
πŸ“…Harvestβ‰ˆ 10 – 11 weeks from seed (typical)
πŸ“Height3 feet
βš–οΈYieldMedium
🏠Yield Indoorup to 200 g/m2
🌳Yield Outdoorup to 300 g/plant
⏱Flowering Time50-60 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Premium US Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Laws governing cannabis seeds, germination, and cultivation vary by jurisdiction and may change. Customers are responsible for reviewing applicable federal, state, and local requirements before ordering or germinating seeds. This information is not legal advice.
1
Neptune OG Auto
royalkingseeds.us
IG
FB
X
πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number
  • Black Russian feminized cannabis plant
    Hybrid
    THC 24%
    🎨 Creative

    Black Russian Feminized

    CreativeCalm
    $15.99USD
  • AK feminized cannabis plant
    Sativa
    THC 19%
    πŸ… Top rated

    AK Feminized

    HappyEnergeticCreative
    $10.99USD
  • Rene Mist feminized cannabis plant
    Hybrid
    THC 26%
    ⚑ High Potency

    Rene Mist Feminized

    CreativeFocused
    $10.99USD
  • Pineapple feminized cannabis plant
    Hybrid
    THC 20%
    🎨 Creative

    Pineapple Feminized

    HappyRelaxedUplifted
    $15.49USD

Neptune OG Strain Review

Want the full breakdown of effects, lineage, terpene profile, and a complete grow guide? Read our in-depth Neptune OG strain review.

Neptune OG Auto, Cannabinoid & Terpene Reference

Reference ranges aggregated from breeder documentation and catalog specifications. Total THC reported as max-potential (THC + 0.877 Γ— THCA). Individual seed-lot expression may vary by 1-3 percent.

Total THC
15.4%
CBD
0.15%
Top Terpenes
Myrcene, Humulene, Pinene

Neptune OG Auto, Aggregated Grower Yield Reports

Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Neptune OG Auto autoflower seeds. First-time growers should expect 70-85 percent of these numbers.

SetupYield
Outdoor, 25-gal fabric pot, full sun365g
5Γ—5 tent, 730W LED, ScrOG255g
5Γ—5 tent, 730W LED, ScrOG + topping255g

Neptune OG Auto, Sourcing & Genetics

Release Era
Modern stabilized line
Parent Genetics
Autoflowering indica (Undisclosed Lineage)
Lineage Notes
The precise parentage of Neptune OG Auto has not been publicly documented; it is cultivated as an indica autoflowering variety selected for its effects and terpene profile.
Recommended US Climate
Versatile across all US climates, 8-10 week cycle works in any growing window from Maine to Hawaii.

Save More on Cannabis Seeds