Strain experience guide

303 OG

Also known as 303 Kush, 303, 303 OG Kush

303 OG is a potent hybrid blending Pre-98 Bubba Kush and Chemdawg genetics, delivering an earthy-citrus diesel aroma with a euphoric, relaxing high. Balanced at 58% indica-dominant, it offers creative uplift alongside deep body relaxation, making it a versatile choice for stress relief, social moments, or unwinding after a long day. Read more Show less

Quick Hits

What kind of high is 303 OG?

A balanced hybrid reported as relaxed, euphoric and sleepy. Picked for stress relief and creative projects at any time of day. The profile features earthy citrus flavor and aroma and myrcene as the lead terpene.

High Family
Entourage High
Full Entourage Effect
Dominant Terpenes
Myrcene
Smells Earthy, musky, fruity
  • Limonene Citrus, lemon, orange
  • Caryophyllene Spicy, peppery, woody

Ordered by measured share — the exact percentages shift with every batch and cure.

How It Feels
Relaxed
  • Euphoric
  • Sleepy
Best For
Smells Like
Earthy citrus
  • Coffee
  • Diesel
Tastes Like
Earthy citrus
  • Coffee
  • Spicy

Same notes reported for aroma

  • Best Time Anytime
  • Era 2010
  • Rarity Common

Genetics Balanced Hybrid A guide to lineage, not a reliable predictor of the high.

Potency Check the label, not the strain Varies by batch, grower and harvest — check the label on the product you are buying. Scan your label → Reported ranges →

Heads up Reported: dry mouth and dry eyes. Responses vary — start low, go slow. Review safety →

Worth knowing

The details that shape the experience

This strain has its own song — hit play, read along, and chill out.

303 OG Soundtrack

AI-generated for this strain

G-Funk92 BPMA minor
0:002:48

Verse

Chorus

Verse

Chorus

Bridge

Chorus

Outro

The memorable details

  1. Potent Pre-98 Bubba Kush x Chemdawg cross with THC ranging up to 28%
  2. Earthy citrus-diesel aroma driven by Myrcene, Limonene, and Caryophyllene terpenes
  3. Delivers euphoric, creative energy before easing into deep relaxation
  4. Award-winning genetics recognized for concentrate quality and terpene yields
Explore the full profile Complete experience record Relaxed · Euphoric · Sleepy

Mind, body, and energy

Relaxed Euphoric Sleepy Happy

Best enjoyed during anytime

Balanced for any time of day

Activities people choose it for

Therapeutic reports

Mental Effects

60 %
  • •
    Anxiety Relief

    Reduces anxiety and nervous tension effectively

  • •
    Stress Relief

    Alleviates chronic stress without heavy sedation

  • •
    Depression Management

    Elevates mood and combats depressive symptoms

  • •
    Sleep Improvement

    Promotes restful sleep and reduces insomnia

Professor High showing Anxiety Relief and Pain Relief effects
Anxiety Relief Pain Relief

Professor High visualization

Body Effects

40 %
  • •
    Pain Management

    Reduces chronic pain and muscle tension

  • •
    Inflammation Reduction

    Decreases inflammation throughout the body

  • •
    Seizure Control

    Helps manage seizures and muscle spasms

  • •
    Appetite Stimulation

    Increases appetite and combats nausea

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.

Side effects and safer use

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

Dry Mouth
Dry Eyes
Dizziness
Anxiety
Increased Appetite

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

Keep listening Music neighborhood Follow 303 OG into Entourage High music

Sound neighborhood

Follow 303 OG into Entourage High music.

TIWIH classifies this strain within the Entourage High chemistry pattern. Separately, our editorial music map associates the same family with these sounds. It is a creative bridge—not a prediction or artist endorsement.

Open the jar

Aroma, flavor, and chemistry

Look closer Full sensory specimen Citrus · Coffee · Diesel

Aroma and flavor

Aromas

Citrus
Coffee
Diesel
Earthy
Spicy

Flavors

Citrus
Coffee
Earthy
Spicy

Terpene profile

Total Terpene Content: 2.13% (High)

Terpene Distribution

Terpene profile: Myrcene 0.6%, Limonene 0.5%, Caryophyllene 0.3%, Camphene 0.2%, Pinene 0.2%, Ocimene 0.1%, Humulene 0.1%, Linalool 0.1% .

Myrcene Dominant

Flavor: Earthy, musky, fruity

Sedating Muscle relaxant Anti-inflammatory

Full Profile

Myrcene
0.61%
Limonene
0.47%
Caryophyllene
0.33%
Camphene
0.21%
Pinene
0.175%
Ocimene
0.14%
Humulene
0.125%
Linalool
0.065%
Terpinolene
—

Appearance

Color Palette

deep forest green
purple undertones
olive green
fiery orange pistils
amber trichomes
golden resin highlights

Texture

Dense, chunky bud structure with a thick, frosty trichome coating that gives the flower a sugared, sticky appearance. Buds are resin-rich and slightly sticky to the touch.

Crystal Density

very high

Exceptional crystal coverage

Batch context Complete cannabinoid record THC 12.07-28% · Type I chemovar

There’s more to a strain than THC%.

THC percentage is a property of the product in your hand, not of the strain. It shifts with the batch, the grower, the harvest, and how the flower was cured and stored — the same strain can test several points apart from two different jars.

Treat the ranges below as market context for what to expect on a shelf — then read the actual label on the product you are buying, and use the terpene profile to judge how it will feel.

Type I THC-Dominant

High THC (>15%), low CBD (<1%) - Most common recreational strains

Reported THC Range
12.07-28%
Professor High

03 · AI interpretation

Professor High interprets the pattern

As the first hit settles in, I feel a bright citrus-diesel punch hit my senses before a wave of euphoria washes over my mind. My thoughts start firing creatively — I'm suddenly chatty, ideas flowing easy, laughing at things that aren't even that funny. That's the Limonene and Chemdawg genetics doing their cerebral dance. Then, almost like clockwork, a warm heaviness creeps into my limbs. The Myrcene and Caryophyllene are clearly working together here, easing tension in my shoulders and lower back that I didn't even realize I was carrying. My hunger kicks in hard — I'm eyeing snacks I normally wouldn't touch. As time passes, that initial spark of talkative creativity mellows into a comfortable, sleepy contentment. It's a beautifully balanced ride: sharp and social up front, deeply relaxing on the back end. This is a strain that lets you live in both worlds before gently guiding you toward the couch.

Read this as an interpretation of the profile—not clinical advice, a product rating, or a guarantee.

Learn more with AI

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Go deeper

The helpful detail

The Legend Behind 303 OG

303 OG carries its Colorado area code like a badge of honor, and for good reason. This hybrid cross of Pre-98 Bubba Kush and Chemdawg has become a benchmark strain in the Mountain West cannabis scene, prized for its potent resin production and its ability to deliver a full-spectrum experience that satisfies both mind and body. With genetics tracing back to the 2000s and refined releases through Royal King Genetics, this strain has earned its reputation the hard way — through consistent, powerful performance.

🧬 Genetic Heritage & Lineage

The backbone of 303 OG comes from two heavyweight champions of classic American cannabis breeding. Pre-98 Bubba Kush contributes deep indica relaxation and that signature coffee-kush funk, while Chemdawg brings its legendary diesel pungency and cerebral punch. This pairing results in a 58% Indica / 42% Sativa balance — a chemovar classified as Type II, meaning it typically expresses a THC-dominant profile with trace CBD, ranging widely from roughly 12% to 28% THC depending on phenotype and cultivation.

👃 Terpene Profile & Aromatics

303 OG's aromatic signature is anchored by Myrcene (0.61%), the dominant terpene responsible for its earthy, musky undertone and body-heavy influence. Close behind is Limonene (0.47%), lending bright citrus zest and mood-lifting qualities, followed by Caryophyllene (0.33%) which adds peppery spice and contributes to the strain's soothing physical effects. Rounding out the profile are Camphene, Ocimene, Pinene, Linalool, and Humulene — a complex terpene lattice that produces a layered nose of citrus, coffee, diesel, pine, and pungent earthiness with skunky, herbal undertones.

👅 Flavor Experience

On the inhale, you'll notice a sharp diesel-citrus punch that quickly gives way to earthy, coffee-like richness. The mid-palate reveals notes of pine and sweet spice, while the exhale leaves behind a lingering pungent, sour-lemon finish that coats the palate. It's a flavor journey that stays true to its OG heritage while adding its own citrus-forward twist.

🎯 Effects & Experience

Expect a euphoric, happy onset that arrives within minutes of your first inhale. As the high builds, you'll feel a wave of relaxation settle into the body while your mind stays creative and talkative — a rare combo that makes this strain versatile. Later in the experience, sleepy and uplifted sensations blend together, often accompanied by an increase in appetite. The duration tends to run long, making it a solid choice whether you're starting your evening or winding it down.

🎮 Use Cases & Activities

303 OG shines during stress relief sessions, creative activities like art or music, relaxed social gatherings, and dedicated relaxation time. Its balanced nature means it doesn't lock you to the couch immediately, giving you a window to be productive or social before the deeper body effects take hold.

💚 Medical & Therapeutic Potential

Many users turn to 303 OG hoping it may help ease anxiety, chronic stress, and low mood, thanks to its uplifting terpene blend. On the physical side, its Myrcene and Caryophyllene content may support pain and inflammation management, along with muscle relaxation.

👁️ Visual Characteristics

Quality 303 OG buds display dense, chunky structure with deep forest green hues accented by purple undertones. A generous coating of trichomes gives the flower a frosted, almost sugary appearance, while fiery orange pistils curl throughout the calyxes.

🏆 Awards & Recognition

303 OG has picked up serious industry credibility, including Best U.S. Concentrates honors in 2014 and a Grow Off Winner title in 2018 for Potency and Terpene Yields — proof that this strain's resin production is elite-tier.

⚠️ Consumer Considerations

This strain suits intermediate to experienced consumers given its potentially high THC content. Novices should start low and go slow to gauge tolerance.

Practical guide How people use it Smoking · Vaping · Edibles

Recommended Methods

Smoking
Vaping
Edibles
Concentrates
Where it comes from Origins and lineage Pre-98 Bubba Kush × Chemdawg · bred by Royal King Genetics

303 OG is a hybrid strain resulting from a cross between Pre-98 Bubba Kush and Chemdawg. Most commonly described as containing 58% Indica and 42% Sativa genetics.

Origin Timeline

First cultivated in 2010

Breeder

Royal King Genetics

Seed Bank

Royal King Seeds

On the record Awards and recognition 2 awards & mentions

Competition Wins

Grow Off Winner
Grow Off • 2018

Potency and Terpene Yields

View Source (opens in new tab) ↗
Best U.S. Concentrates
2014
View Source (opens in new tab) ↗
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Strain reviews and videos

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Evidence and limits

Research notes

This profile assembles public facts in original language, links its supporting sources, and keeps gaps or disagreements visible. It is research provenance—not product or lab certification.

Linked sources
18
Sourced sections
9
Claims under review
106
Profile updated
Sep 14, 2026
Research Edition

Current profile edition

Updated September 14, 2026 · 9 profile areas with section-level sourcing
Researched profile

This edition records This Is Why I'm High’s synthesis of published information about 303 OG. It describes source-supported patterns and uncertainty; it does not certify genetics, potency, safety, or any product batch.

Profile sources
18
Research evidence confidence
68%
Edition date
September 14, 2026

Evidence confidence summarizes source coverage and consistency for this profile synthesis. It is not a product rating, potency score, or guarantee about any batch.

Source coverage in this edition

  • Classification 15 sources
  • Lineage 13 sources
  • Cannabinoids 14 sources
  • Terpenes 9 sources
  • Reported effects 15 sources
  • Aromas 12 sources
  • Flavors 14 sources
  • Reported medical uses 14 sources
  • Awards 2 sources

History tracking is active

Material changes are recorded as new editions using factual categories and source metadata. Source article prose and reviews are not copied into the history.

Research context What published research says Peer-reviewed studies, terpene science & safety guidance

What does the research say about 303 OG?

303 OG is a hybrid cannabis strain containing up to 28.0% THC, with a terpene profile dominated by Myrcene and Limonene. This page currently has good data confidence. Below are profile sources when available plus authoritative resources for understanding the compounds in this strain.

Educational resources only — not medical advice. Always consult a qualified clinician for health decisions.

Power-user detail Open sources and methodology 18 linked sources with section-level provenance

Research Methodology

How we compiled this strain profile

68%
Data Confidence

This strain profile was compiled from 18 published sources covering '303 OG'. Our research pipeline cross-references these sources and reports how strongly they agree — see the confidence breakdown below.

Data Quality by Section

Terpenes Low (9 sources)
Effects Low (15 sources)
Lineage Medium (13 sources)
Medical Low (14 sources)
Aromas Low (12 sources)
Cannabinoids Low (14 sources)
Last updated: September 14, 2026

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