Northern Lights cannabis seeds packaging, Royal King Seeds USA
IndicaAuto
THC 19%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Northern Lights Auto

Well-balanced indica autoflower with relaxed and sleepy effects and dense bud formation. Ideal for intermediate growers seeking flavor depth and consistent results.

Flavor:Chocolate, coffee, earthy sweetness

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
19%
Flower
70-85 days seed to harvest (45-55 days flowering)
⚖️
Yield
High
🎯
Difficulty
Intermediate
📏
Height
Medium
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Watch humidity on dense autos, below 50% during flower

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$10.79$13.49SAVE 20%USD

Premium stabilized genetics · germination guaranteed

Delivers high harvests under balanced light and nutrients
Blends relaxed and sleepy sensations, perfect for evening
Premium indica genetics refined for home growers

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Documented performer in grower-community reports
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Curated for US home growing conditions

About Northern Lights Auto

Northern Lights is a 81/19 indica testing at 19% THC with a linalool-dominant terpene profile. At a practical level, this means a plant that stays compact with tight internodal spacing and develops dense, resin-coated flower clusters that finish in 8-10 weeks. The Linalool/Myrcene combination shapes both the aromatic profile and the effect character, this is not a one-dimensional strain.

Growing Parameters

Flowering time: 8-10 weeks from flip. Indoor yield at 600+ PPFD: 300-400g/m². Outdoor in full sun with 5+ gallon containers: 500-700g/plant. Plant height indoors after training: Tall (4-5 ft). Feed EC targets: 1.0-1.4 in veg, 1.4-1.8 in peak flower. pH range: 6.0-6.5 in soil, 5.8-6.2 in coco. Linalool production peaks when day/night temperature differential exceeds 10°F in the final two weeks, growers who drop nighttime temps to 62-65°F during this window report stronger aromatic development.

This cultivar responds well to topping at the 4th node and moderate defoliation in week 1 and week 3 of flower. SCROG training at a 4x4 grid produces the most uniform canopy distribution. Rated intermediate difficulty.

What Users Report

Northern Lights at 19% THC produces relaxed, sleepy, happy 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 a nose that develops complexity through the cure, expect the primary linalool character to emerge first, with myrcene and caryophyllene notes adding layers over 3-4 weeks in jars.

Who Should Grow Northern Lights

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 8-10 weeks flowering period to their frost-free window.

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 81%Sativa 19%

Strain Data Sheet

🧬THC19% - 22% (Medium-High)
🌿LineageAfghani × Thai
🔬TypeAutoflower Indica
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏Height80-120 cm
⚖️YieldHigh
🏠Yield Indoor500-550 g/m2
🌳Yield Outdoor170-220 g/plant
Flowering Time70-85 days seed to harvest (45-55 days flowering)

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
Northern Lights Auto
royalkingseeds.us
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🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number
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Northern Lights Strain Review

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

Northern Lights Auto, Cannabinoid & Terpene Reference

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

Total THC
19.1%
CBD
0.09%
Top Terpenes
Myrcene, Caryophyllene, Pinene

Northern Lights Auto, Aggregated Grower Yield Reports

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

SetupYield
4×4 tent, 600W LED, SCROG104g
3×3 tent, 400W LED, single-cola104g
3×3 tent, 400W LED, LST104g

Northern Lights Auto, Sourcing & Genetics

Release Era
Modern stabilized line
Parent Genetics
Afghani × Thai
Lineage Notes
Northern Lights is a near-pure indica widely documented as a cross of Afghani and Thai landrace genetics, first bred in the Pacific Northwest in the late 1970s and later stabilized by Sensi Seeds. This autoflowering version carries that same Afghani × Thai heritage.
Recommended US Climate
Versatile across all US climates, 8-10 week cycle works in any growing window from Maine to Hawaii.

Northern Lights Auto, Breeder Information

Royal King Genetics

Bred 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.

Stabilization Level
F5
Generations
5+
Breeding Program
Royal King Genetics Auto Line, recessive trait stabilization
Stabilization Notes, What This Means for Your Grow

Five generations of Royal King Genetics autoflower stabilization on Northern Lights. Auto trigger time, finish window, and tight finishing window are uniform, no photo-hybrid surprises in the pack.

Breeding Goal

Reach auto trigger and finish-window uniformity for the Northern Lights pack.

Selection Focus

Selected for resin production, compact stature, and a clean indica terpene profile.

Pollen / Mother Source

Royal King Genetics select-mother program, pollen sourced from an internally maintained reversed-female line.

Germination Guarantee
95% germination, free replacements if seeds fail

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