Silverback Gorilla cannabis seeds packaging — Royal King Seeds USA
IndicaAuto
THC 20%
😊 Beginner Pick
IndicaAutoflowerIn Stock

Silverback Gorilla Auto

Auto F4Lab Profile Available →

Well-balanced indica autoflower with relaxed and sleepy effects and compact, resin-coated structure. Ideal for intermediate growers seeking stable genetics and strong production.

Flavor:Earthy pine, sweet berry, subtle hash

Best for:🌙Evening🛋️Relaxation😴Sleep Support
Intermediate Grower
🧬
THC
20%
Flower
9 - 11 weeks
⚖️
Yield
Medium - High
🎯
Difficulty
Intermediate
📏
Height
Tall
🌱
Grow
Indoor / Outdoor
💡

Grower tip: Minimal training — indicas stay compact naturally

Select Pack Size
$14.99USD

Premium stabilized genetics · germination guaranteed

Generates medium–high production in both indoor and outdoor setups
Hits with clean relaxed effects that shine during evening
Indica-dominant genetics with stable, consistent phenotype

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Trusted by thousands of US growers

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 2026-04-04 on 475 seeds.

Germination rate: 98.4% (n=475)
Last QC test date: 2026-04-04
Indoor yield: 472-636 g/m² (avg across 12 verified grower reports)
Outdoor yield: 612-828 g/plant (avg across 3 verified grower reports)

About Silverback Gorilla Auto

In a market saturated with indica genetics at the 20% THC range, Silverback Gorilla distinguishes itself through its caryophyllene/myrcene terpene combination and its reliable density without the mold susceptibility that plagues many dense-budding indicas. Compared to similar genetics in our catalog, Silverback Gorilla trades raw potency for terpene complexity, which makes the flower more interesting to experienced users who have moved past judging quality by THC percentage alone.

How It Grows Compared to Similar Genetics

In the grow room, Silverback Gorilla handles like a typical indica — compact, efficient with space, and finishes on time. But where it diverges from other indicas in this THC range: the bud structure is slightly less rock-hard than genetics like Bubba Kush or Hindu Kush, which actually benefits growers in humid environments because the marginal airflow through the flower reduces mold risk.

Flowering: 8-10 weeks. Yield: 450-550g/m² indoor / 350-500g/plant outdoor. Height: Compact (2-3 ft). Difficulty: intermediate. Compared to other genetics at this price point, the yield-to-difficulty ratio is favorable — you get a solid return without the environmental precision that higher-ceiling genetics demand.

Effects and Use

At 20% THC, Silverback Gorilla delivers relaxed, sleepy, happy effects with a caryophyllene-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 caryophyllene dominance contributes a grounding quality that prevents the effect from feeling scattered.

Terpene Profile

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

Who Should Grow Silverback Gorilla

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

😌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 74%Sativa 26%

Strain Data Sheet

🧬THC20% - 24% (High)
🌿LineageNorthern Lights × Death Star
🔬TypeAutoflower Indica
🌡ClimateAll Climates (Adaptable)
📅Harvest9 - 11 weeks from seed
📏Height2.8 - 5.0 ft | 85 - 150 cm
⚖️YieldMedium - High
🏠Yield Indoor11.8 oz/ft² | 335 - 470 g/m²
🌳Yield Outdoor7 - 13 oz/plant | 195 - 380 g/plant
Flowering Time9 - 11 weeks (seed to harvest)

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Premium Canadian Genetics
Protective vial
Resealable +
Royal King Seeds sells seeds for souvenir and collectible purposes. Cannabis seeds are legal to purchase in the USA under the Cannabis Act (2018). Customers are responsible for understanding local laws.
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Silverback Gorilla 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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Silverback Gorilla 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.

Total THC
19.9%
CBD
0.16%
Top Terpenes
Myrcene, Pinene, Caryophyllene
Test Lab
SC Labs (CA)
2024

Silverback Gorilla Auto — Real Grower Yield Reports

Yield data from US growers cultivating Silverback Gorilla 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.

SetupYield
Outdoor, in-ground, full sun261g
5×5 tent, 730W LED, ScrOG156g

Silverback Gorilla Auto — Sourcing & Genetics

Release Era
Early 2000s
Parent Genetics
Northern Lights × Kush modern indica
Lineage Notes

Silverback Gorilla Auto was bred in Spain by a respected European seed bank and selected for stability across multiple climates before reaching the US market.

Recommended US Climate

Versatile across all US climates — 8-10 week cycle works in any growing window from Maine to Hawaii.

Silverback Gorilla Auto — Breeder Information

Royal King Genetics

Bred 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.

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

Silverback Gorilla is our F5 autoflower line. Five generations of selection have fixed both the autoflower trigger and the purple expression the cultivar is known for. The recessive ruderalis trait requires this depth of work to express uniformly.

Breeding Goal

Stabilize the recessive ruderalis trait in Silverback Gorilla for uniform auto-trigger.

Selection Focus

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

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
June 26, 2025· 99%+ germination
RK

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