303 OG
aka 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.
The Short Answer
What kind of high is 303 OG?
Myrcene-led and earthy-citrus on the palate, most often reported relaxed and picked for stress relief.
Terpenes decide how a strain feels — THC% only decides how strong the dose is. Here is the family, the chemistry behind it, and what people reach for it to do.
Terpenes are the aromatic compounds that shape the character of a high. The blend a strain carries — not its THC percentage — is what makes one feel bright and social and another heavy and sleepy, which is why the top three are listed rather than just the leader.
Terpene percentages belong to the jar, not the strain. They move with harvest timing, drying, cure and shelf age — the lighter ones literally evaporate. What holds steady is which terpenes lead, so that is what we rank.
See the full profile →Learn how terpenes work →- Sedating
- Muscle relaxant
- Anti inflammatory
- Limonene Citrus, lemon, orange
- Caryophyllene Spicy, peppery, woody
Ordered by measured share — the exact percentages shift with every batch and cure.
The effects reported most often across our research sources. Every body is different — set, setting and tolerance all move the result.
- Euphoric
- Sleepy
The activities this strain gets picked for most often, leading with the specific ones rather than the broad buckets nearly every strain shares. A starting point, not a prescription — what works for you is personal.
See the full list →The flavor notes reported most often across our research sources, led by the most specific one — flavor tracks the terpene blend, but cure, age and how you consume it all shift what actually lands on the palate.
See the full profile →- Coffee
- Spicy
The aroma notes reported most often across our research sources — what the jar gives up before you light it. This is the strain's own recorded profile, not the textbook aroma of its lead terpene.
Our sources describe this strain's aroma and its flavor the same way, so both cards read alike here. That is what was reported, not a repeat.
See the full profile →- Coffee
- Diesel
Same notes reported for taste
- Best Time anytime
- Era 2010
- Rarity Common
Genetics Balanced Hybrid A lineage label, not an effects predictor — most modern flower is a hybrid, and the terpene mix above is what you will actually notice.
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 Most reported: dry mouth and dry eyes. Responses vary — start low, go slow. Review safety →
This strain has its own song — hit play, read along, and chill out.
303 OG Soundtrack
AI-generated for this strain
303 OG Soundtrack
Verse
Chorus
Verse
Chorus
Bridge
Chorus
Outro
Your guided read
6 chapters on 303 OG
Start at the top and work down — each chapter builds on the one before it. Jump to any chapter to read it on its own.
- The Experience How this strain is reported to feel, and when people reach for it.
- Look, Aroma & Taste The smell and flavour you will actually notice — and the terpenes behind them.
- Chemistry & Research Therapeutic reports, published research, and what the lab numbers do — and do not — tell you.
- Using It Well Consumption methods that suit this strain, and the side effects to plan around.
- Where It Comes From The genetics, the breeders, and the recognition it has picked up along the way.
- The Full Story The long-form profile and community video reviews, once you want the detail.
Strain Highlights
Key insights at a glance
The Experience
Professor High Says...
In-depth strain breakdown from Professor High, our AI cannabis expert
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.
Effects Profile
Relaxed · Euphoric · Sleepy
Best enjoyed during anytime
Balanced for any time of day
Best For
Stress Relief · Creative Projects · Socializing
Effect Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 OG Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 OG - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
- 4 303 OG Kush - Strains weedmaps.com(opens in new tab)
- 5 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 6 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 7 303 Og Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 8 303 Kush | ׂ303 OG | 330 OG Kush - Hybrid Cannabis Strain - 9leaves 9leaves.com(opens in new tab)
- 9 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 10 303 OG Strain Review: Effects & Where to Buy (2026) | Weedpedia weedpedia.ca(opens in new tab)
- 11 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 12 303 OG Kush Cannabis Strain Near Me | Info, Effects, THC lookyweed.com(opens in new tab)
- 13 303 OG Strain Guide — Buy Seeds in Canada | Royal King Seeds royalkingseeds.ca(opens in new tab)
- 14 303 OG Seeds | Colorado Cannabis Strain theseedpharm.com(opens in new tab)
- 15 303 OG | Pure Seed Genetics pureseedgenetics.com(opens in new tab)
15 verified sources
Look, Aroma & Taste
Aroma & Flavor
Citrus · Coffee · Diesel
Aroma & Flavor Sources
- 1 303 OG Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 2 303 OG - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
- 3 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 4 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 5 303 Og Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 6 303 Kush | ׂ303 OG | 330 OG Kush - Hybrid Cannabis Strain - 9leaves 9leaves.com(opens in new tab)
- 7 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 8 303 OG Strain Review: Effects & Where to Buy (2026) | Weedpedia weedpedia.ca(opens in new tab)
- 9 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 10 303 OG Strain Guide — Buy Seeds in Canada | Royal King Seeds royalkingseeds.ca(opens in new tab)
- 11 303 OG Seeds | Colorado Cannabis Strain theseedpharm.com(opens in new tab)
- 12 303 OG | Pure Seed Genetics pureseedgenetics.com(opens in new tab)
12 verified sources
Aromas
Flavors
Terpene Profile
Myrcene leads · 9 terpenes mapped
Terpene Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 OG - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
- 3 303 Og Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 4 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 5 303 OG Strain Review: Effects & Where to Buy (2026) | Weedpedia weedpedia.ca(opens in new tab)
- 6 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 7 303 OG Strain Guide — Buy Seeds in Canada | Royal King Seeds royalkingseeds.ca(opens in new tab)
- 8 303 OG Seeds | Colorado Cannabis Strain theseedpharm.com(opens in new tab)
- 9 303 OG | Pure Seed Genetics pureseedgenetics.com(opens in new tab)
9 verified sources
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
Limonene
Flavor: Citrus, lemon, orange
Caryophyllene
Flavor: Spicy, peppery, woody
Camphene
Flavor: Damp woodlands, fir needles
Pinene
Flavor: Pine, fresh forest
Ocimene
Flavor: Sweet, herbaceous, woody
Humulene
Flavor: Hoppy, woody, earthy
Linalool
Flavor: Floral, lavender, sweet
Full Profile
Myrcene
0.61%
Flavor Profile:
Earthy, musky, fruity
Effects:
Limonene
0.47%
Flavor Profile:
Citrus, lemon, orange
Effects:
Caryophyllene
0.33%
Flavor Profile:
Spicy, peppery, woody
Effects:
Camphene
0.21%
Flavor Profile:
Damp woodlands, fir needles
Effects:
Pinene
0.175%
Flavor Profile:
Pine, fresh forest
Effects:
Ocimene
0.14%
Flavor Profile:
Sweet, herbaceous, woody
Effects:
Humulene
0.125%
Flavor Profile:
Hoppy, woody, earthy
Effects:
Linalool
0.065%
Flavor Profile:
Floral, lavender, sweet
Effects:
Terpinolene
Not lab-measured
Flavor Profile:
Fresh, piney, floral, citrus
Effects:
Appearance
Deep forest green · Purple undertones
Color Palette
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
Chemistry & Research
Medical Effects
8 reported therapeutic uses on file
Medical Effect Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 OG Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 OG - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
- 4 303 OG Kush - Strains weedmaps.com(opens in new tab)
- 5 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 6 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 7 303 Og Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 8 303 Kush | ׂ303 OG | 330 OG Kush - Hybrid Cannabis Strain - 9leaves 9leaves.com(opens in new tab)
- 9 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 10 303 OG Strain Review: Effects & Where to Buy (2026) | Weedpedia weedpedia.ca(opens in new tab)
- 11 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 12 303 OG Kush Cannabis Strain Near Me | Info, Effects, THC lookyweed.com(opens in new tab)
- 13 303 OG Strain Guide — Buy Seeds in Canada | Royal King Seeds royalkingseeds.ca(opens in new tab)
- 14 303 OG | Pure Seed Genetics pureseedgenetics.com(opens in new tab)
14 verified sources
Mental Effects
- •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 visualization
Body Effects
- •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.
What 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.
Terpene Research
Cannabinoid Information
Cannabis Regulations & Safety
Educational resources only — not medical advice. Always consult a qualified clinician for health decisions.
Cannabinoids (THC & CBD)
THC 12.07-28% · Type I chemovar
THC% tells you how strong. Terpenes tell you how it feels.
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.
High THC (>15%), low CBD (<1%) - Most common recreational strains
Using It Well
Consumption Methods
Smoking · Vaping · Edibles
Recommended Methods
Side Effects
Dry Mouth · Dry Eyes · +3 more
Side effects vary by individual. Start low, go slow. Consult a healthcare professional with concerns.
These are commonly reported effects. Individual experiences may vary based on dosage, tolerance, and consumption method.
Where It Comes From
Lineage & History
Pre-98 Bubba Kush × Chemdawg · bred by Royal King Genetics
Lineage Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 OG Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 OG - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
- 4 303 OG Kush - Strains weedmaps.com(opens in new tab)
- 5 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 6 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 7 303 Og Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 8 303 Kush | ׂ303 OG | 330 OG Kush - Hybrid Cannabis Strain - 9leaves 9leaves.com(opens in new tab)
- 9 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 10 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 11 303 OG Kush Cannabis Strain Near Me | Info, Effects, THC lookyweed.com(opens in new tab)
- 12 303 OG Strain Guide — Buy Seeds in Canada | Royal King Seeds royalkingseeds.ca(opens in new tab)
- 13 303 OG Seeds | Colorado Cannabis Strain theseedpharm.com(opens in new tab)
13 verified sources
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.
Genetics
Origin Timeline
First cultivated in 2010
Breeder
Royal King Genetics
Seed Bank
Royal King Seeds
Awards & Recognition
2 awards & mentions
Award Sources
- 1 303 OG Kush - Strains weedmaps.com(opens in new tab)
- 2 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
2 verified sources
Competition Wins
The Full Story
Detailed Description
The long-form profile · ~3 min read
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.
Research Methodology
How we compiled this strain profile
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
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Strain Highlights
Key insights at a glance
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