G13

aka G-13, G Thirteen, Government Indica Strain 13, Government Indica Strain 1, G13 Afghani Indica, Government, Greenhouse number 13

Quick Hits

🍋
High Family
Uplifting High
Mood Elevation & Social Energy
Potency
20% THC
0.5% CBD
Cannabinoid Content
Type Type II
indica
Balanced
🍋
Terpene
Limonene
Anxiety reduction
🌙
Best Time
night
Recommended
Era
1977
First cultivated
💎
Rarity
Uncommon
Market availability

Strain Highlights

Key insights at a glance

1
Legendary indica-dominant hybrid with mysterious 1960s government research origins
2
Powerful limonene and linalool terpenes create euphoric relaxation with 16-24% THC
3
Deep body relaxation perfect for pain relief, stress management, and sleep support
4
Dense trichome-frosted buds deliver earthy pine and sweet citrus berry flavors
Professor High Avatar

Professor High Says...

In-depth strain breakdown from our cannabis expert

Experiencing G13 is like slowly sinking into the world's most comfortable chair while your mind floats on a gentle euphoric cloud. The initial wave hits with this crystalline clarity—thoughts become vivid and colorful, creativity sparks like tiny fireworks, and suddenly every muscle you didn't realize was tense begins to unclench methodically from head to toe. It's fascinating how the limonene creates this bright, uplifting headspace even as your body melts into pure relaxation. The Afghani genetics show their power about twenty minutes in—you feel this deep gravitational pull that's not sedating so much as profoundly peaceful. Pain signals seem to fade into background noise, stress dissolves like sugar in warm tea, and time... well, time becomes wonderfully irrelevant. What strikes me most is the quality of the body relaxation—it's not numbing or disorienting, but rather like every cell is exhaling simultaneously. The appetite stimulation is undeniable, and sleep arrives naturally once you surrender to it. This is indica mastery demonstrating how terpene synergy and genetics create experiences that transcend simple intoxication into genuine therapeutic relief.

Indica Dominant
Limonene Forward
night Use

Effects Profile

Relaxed Euphoric Happy Uplifted Sleepy Creative Energetic Calming

Best enjoyed during night

Deep relaxation and sleep

Side Effects

Side effects vary by individual. Start low, go slow. Consult a healthcare professional with concerns.

💧 Dry Mouth
👁️ Dry Eyes
⚠️ Dizziness
⚠️ Drowsiness
😰 Paranoia

These are commonly reported effects. Individual experiences may vary based on dosage, tolerance, and consumption method.

Aromas

Earthy
Pine
Sugar
Citrus
Berry Mix
Spicy
Pungent
Skunk
Woody
Herbal

Flavors

Sugar
Earthy
Pine
Citrus
Berry Mix
Spicy
Woody
Herbal
Floral
Pepper

Appearance

Color Palette

deep forest green
purple undertones
dark emerald
bright orange pistils
amber trichomes
golden resin coating

Texture

Dense, chunky indica structure with tightly packed calyxes. Buds feel slightly sticky with heavy resin coverage. Breaks apart easily when properly cured, releasing pungent aromas.

Crystal Density

very high

Exceptional crystal coverage

Cannabinoid Profile

Type II Balanced

Both THC and CBD present (5-15% each) - Medical/wellness focused

THC Range
16-24%

Mental Effects

55 %
  • Anxiety Relief

    Reduces anxiety and promotes calm without heavy sedation

  • Stress Relief

    Alleviates stress and tension throughout the body

  • Depression Management

    Elevates mood and provides emotional uplift

  • PTSD Support

    Helps manage post-traumatic stress symptoms

Professor High visualization

Body Effects

45 %
  • Pain Relief

    Reduces chronic pain, arthritis, and migraines effectively

  • Insomnia Treatment

    Promotes sleep and sedation for restful nights

  • Muscle Spasm Relief

    Reduces muscle tension and spasm occurrence

  • Appetite Stimulation

    Increases hunger and promotes gastrointestinal wellness

  • Nausea Relief

    Alleviates nausea and gastrointestinal discomfort

Medical Disclaimer: This information is AI-generated based on available research and user reports, provided for educational purposes only, and is not intended as medical advice. Cannabis affects everyone differently. Consult with a qualified healthcare professional before using cannabis for medical purposes. Do not use cannabis if pregnant, nursing, or have a medical condition without consulting your doctor.

G13 is an indica-dominant strain with Afghani genetics as its primary parent, often crossed with Haze varieties. The strain originated in the 1960s-1970s and is attributed to breeder Nevil Schoenmakers.

Genetics

Afghani × Maui Haze

Origin Timeline

First cultivated in 1977

Breeder

Nevil Schoenmakers

Seed Bank

Blimburn Seeds

Consumption Methods

Recommended Methods

🔥 Smoking
💨 Vaping
💧 Tinctures
💎 Concentrates

Awards & Recognition

Awards & Recognition Coming Soon

We're researching competition wins and industry recognition for this strain.

Detailed Description

The Legendary G13: A Cannabis Icon Steeped in Mystery

G13 stands as one of the most mythologized strains in cannabis history, shrouded in Cold War-era conspiracy theories and government research legends. This indica-dominant hybrid (70% indica/30% sativa) has captivated enthusiasts since the 1960s-70s with its powerful effects and enigmatic origins. Whether the stories of clandestine government breeding programs hold truth or simply add to the mystique, G13 delivers an undeniably potent experience that has earned its place in the cannabis hall of fame.

🧬 Genetic Heritage & Lineage

The lineage of G13 reads like a cannabis spy novel. Most sources attribute the strain's foundation to pure Afghani genetics, bred by the legendary Nevil Schoenmakers who obtained it through mysterious circumstances in the 1970s. Some variations incorporate Maui Haze or Neville's A5 Haze into the genetic mix, creating slightly different phenotypes. The Afghani backbone provides the heavy indica foundation, while any sativa influence adds subtle cerebral uplift to what is fundamentally a body-dominant experience. The strain emerged from the 1960s-70s era of intensive cannabis breeding, allegedly as part of research conducted at the University of Mississippi—hence the "Government Indica Strain" nickname that fuels conspiracy theories to this day.

👃 Terpene Profile & Aromatics

G13's terpene profile creates a complex aromatic experience dominated by Limonene at 0.53%, which delivers bright citrus notes that cut through the earthiness. Linalool (0.48%) contributes floral, lavender-like qualities and calming properties, while Caryophyllene (0.43%) adds spicy, peppery undertones with anti-inflammatory potential. Humulene (0.33%) brings woody, hoppy notes, and Myrcene (0.25%) enhances the sedative qualities while adding herbal earthiness.

The aroma profile combines earthy, pine, and sweet base notes with surprising complexity. You'll notice citrus brightness on first encounter, followed by berry and spicy secondary notes. Some phenotypes express woody, herbal, and skunky characteristics, with pungent overtones that announce the strain's potency. The overall scent is rich, layered, and unmistakably indica-forward.

👅 Flavor Experience

The flavor journey mirrors the aromatic complexity. On initial inhale, you'll taste sweet earthiness with prominent pine notes that feel grounding and natural. The mid-palate reveals citrus brightness and subtle berry sweetness, while spicy, peppery undertones from caryophyllene create tingling sensations. The exhale leaves woody, herbal notes that linger pleasantly, with some floral qualities emerging. The flavor profile is smooth yet robust, with the earthiness providing a satisfying base that showcases the strain's Afghani heritage.

🎯 Effects & Experience

G13 delivers a powerful indica experience with THC levels ranging from 16-24% (occasionally testing higher). The onset begins within 5-10 minutes, starting with cerebral euphoria and mood elevation that quickly transitions into deep physical relaxation. Users report feeling happy, uplifted, and creative initially, before the body effects dominate.

The peak arrives at 30-45 minutes, bringing profound relaxation that spreads throughout the body. Muscles release tension, stress dissolves, and a sense of peaceful calm settles in. Many users experience increased appetite and sleepiness as effects intensify. The mental state remains euphoric without heavy cognitive impairment, though focus may wander.

Duration typically extends 2-3 hours, with lingering relaxation lasting even longer. The comedown is gentle, often leading naturally into restful sleep. Intensity is strong—this is not a beginner-friendly strain at higher doses.

🎮 Use Cases & Activities

G13 excels for evening and nighttime use. It's ideal for stress relief after demanding days, pain management when physical discomfort interferes with rest, and sleep support for those struggling with insomnia. The strain also works well for social activities in intimate settings where deep relaxation enhances conversation and connection. Creative individuals may appreciate the initial euphoric phase for artistic projects, though productivity wanes as body effects intensify. It's perfect for meditation, gentle yoga, or simply unwinding with entertainment.

💚 Medical & Therapeutic Potential

G13 offers significant therapeutic potential across multiple conditions. The strain may help with anxiety relief through its calming terpene profile, particularly linalool's anxiolytic properties. Stress management benefits from the euphoric onset and deep relaxation. Chronic pain, arthritis, and migraines may respond to the anti-inflammatory caryophyllene and overall analgesic effects. Muscle spasms and tension release under the strain's powerful body relaxation. Insomnia sufferers often find G13 highly effective for promoting sleep. Depression and PTSD symptoms may be eased by the mood-elevating properties, though individual responses vary. Appetite stimulation and nausea relief round out the medicinal applications.

👁️ Visual Characteristics

G13 buds display classic indica structure—dense, chunky, and compact with tightly packed calyxes. The primary colors feature deep forest green with purple undertones that emerge in cooler growing conditions. Secondary colors include bright orange pistils that contrast beautifully against the green backdrop, while amber and golden trichomes coat the surface heavily, creating a frosted appearance. The crystal density rates as very high, with resinous trichomes covering every visible surface. Properly cured G13 feels slightly sticky but breaks apart easily, releasing pungent aromas when handled.

📜 Cultural Context & Recognition

G13's legend status in cannabis culture stems partly from its mysterious origins and partly from genuine quality. The strain has inspired countless stories, songs, and even movies. While it hasn't won major Cannabis Cup awards in recent years, its historical significance and enduring popularity speak volumes. It remains a favorite among indica enthusiasts who appreciate its reliable effects and distinctive character. Availability has improved with modern cultivation, though true G13 genetics can still be difficult to verify.

⚠️ Consumer Considerations

Experience level: G13 suits intermediate to advanced consumers. The potency can overwhelm cannabis newcomers, potentially causing anxiety or excessive sedation. Start with small doses (one or two puffs) and wait 15-20 minutes before consuming more. Common side effects include dry mouth, dry eyes, and occasional dizziness. Staying hydrated and having eye drops available helps. Some users report mild paranoia at very high doses. The strain works best consumed 2-3 hours before desired sleep time, allowing the euphoric phase to pass before deep relaxation sets in. Avoid G13 when you need to remain alert, productive, or operate vehicles.

Research Methodology

How we compiled this strain profile

78%
Data Confidence

This strain profile was generated by analyzing 22 independent sources mentioning 'G13'. Our research pipeline cross-references multiple databases, lab results, and community reports to synthesize accurate strain data.

Data Quality by Section

Terpenes Medium (12 sources)
Effects Medium (19 sources)
Lineage Medium (10 sources)
Medical Low (15 sources)
Aromas Low (17 sources)
Cannabinoids Low (17 sources)
Last updated: February 7, 2026

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