Strain experience guide
303 Kush
Also known as 303 OG, 303, 303 OG Kush
303 Kush is a legendary Colorado indica-dominant hybrid (60/40) crossing Chemdawg with Pre-98 Bubba Kush. Bred by Zombo, this Myrcene-rich strain delivers earthy, diesel-coffee flavors alongside deeply relaxing, euphoric effects perfect for evening unwind sessions, stress relief, and restful sleep. Read more Show less
Quick Hits
What kind of high is 303 Kush?
An indica-dominant hybrid reported as relaxed, sleepy and happy. Picked for sleep & bedtime and stress relief in the evening. The profile features earthy coffee flavor, pungent diesel aroma and myrcene as the lead terpene.
Terpenes help give cannabis its aroma. Compare citrus, pine and earthy notes to find what appeals to you. The profile offers clues, not a guaranteed high.
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.
Research associations
- Sedating
- Muscle relaxant
- Anti inflammatory
General terpene associations, not effects confirmed for this strain. Evidence varies.
- Pinene Pine, fresh forest
- Linalool Floral, lavender, sweet
Ordered by measured share — the exact percentages shift with every batch and cure.
Reported effects, at a glance. Dose, tolerance and setting can change the experience.
- Sleepy
- Happy
Ideas for your next session, drawn from strain reports. Find what fits your plans.
See the full list →What to look for when you open the jar, based on descriptions of this strain.
See the full profile →- Earthy
- Spicy
The reported taste, from the first impression to the finish. The batch and how you consume it can change what comes through.
See the full profile →- Best Time Evening
- Era 2000
- Rarity Common
Genetics Indica-Dominant 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 Kush Soundtrack
AI-generated for this strain
303 Kush Soundtrack
Verse
Chorus
Verse
Chorus
Outro
The memorable details
- Classic Colorado indica cross of Chemdawg and Pre-98 Bubba Kush, bred by Zombo
- Myrcene-dominant terpene profile delivers deep relaxation with earthy diesel-coffee flavor
- Award-winning genetics recognized for potency and terpene yield at Grow Off 2018
- Perfect evening companion for stress relief, social unwinding, and restful sleep
Explore the full profile Complete experience record
Mind, body, and energy
Best enjoyed during evening
Wind down and relax
Activities people choose it for
Effect Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 Kush Strain - Effects, THC & Reviews | Strain Report strain.report(opens in new tab)
- 4 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 5 303 Kush Strain Info & Reviews | HashDash hashdash.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 - Strains weedmaps.com(opens in new tab)
- 8 303 Kush | CannaHub UK | Expand Your Cannabis Knowledge cannahub.co.uk(opens in new tab)
- 9 303 Kush Marijuana Strain | Rare Harvest rareharvest.net(opens in new tab)
- 10 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 11 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 12 Buy 303 Kush Feminized Seeds | Relaxing Hybrid Kush Strain | Holi Moli Seeds holimoli.com(opens in new tab)
- 13 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 14 Cannabis Strain 303, 303 OG Kush, 303 Kush Indica THC Dominant ss.strainlists.com(opens in new tab)
- 15 303 Kush Bx - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
15 verified sources
Therapeutic reports
Medical Effect Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 Kush Strain - Effects, THC & Reviews | Strain Report strain.report(opens in new tab)
- 4 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 5 303 Kush Strain Info & Reviews | HashDash hashdash.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 - Strains weedmaps.com(opens in new tab)
- 8 303 Kush | CannaHub UK | Expand Your Cannabis Knowledge cannahub.co.uk(opens in new tab)
- 9 303 Kush Marijuana Strain | Rare Harvest rareharvest.net(opens in new tab)
- 10 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 11 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 12 Buy 303 Kush Feminized Seeds | Relaxing Hybrid Kush Strain | Holi Moli Seeds holimoli.com(opens in new tab)
- 13 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 14 Cannabis Strain 303, 303 OG Kush, 303 Kush Indica THC Dominant ss.strainlists.com(opens in new tab)
- 15 303 Kush Bx - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
15 verified sources
Mental Effects
- •Anxiety Relief
Reduces anxious thoughts and promotes calm mental state
- •Stress Management
Alleviates stress and racing thoughts effectively
- •Depression Relief
Elevates mood and combats depressive symptoms
- •PTSD Support
Helps manage trauma-related anxiety and intrusive thoughts
Professor High visualization
Body Effects
- •Pain Management
Reduces chronic pain and muscle tension significantly
- •Sleep Support
Promotes deep sleep and reduces insomnia
- •Appetite Stimulation
Increases hunger and supports weight management
- •Anti-Inflammatory
Reduces inflammation and related discomfort
- •Seizure Management
Helps control seizures and neurological activity
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.
These are commonly reported effects. Individual experiences may vary based on dosage, tolerance, and consumption method.
Keep listening Music neighborhood
Sound neighborhood
Follow 303 Kush into Relaxing High music.
TIWIH classifies this strain within the Relaxing 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
Aroma and flavor
Aroma & Flavor Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 Kush Strain - Effects, THC & Reviews | Strain Report strain.report(opens in new tab)
- 4 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 5 303 Kush Strain Info & Reviews | HashDash hashdash.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 Kush | CannaHub UK | Expand Your Cannabis Knowledge cannahub.co.uk(opens in new tab)
- 8 303 Kush Marijuana Strain | Rare Harvest rareharvest.net(opens in new tab)
- 9 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 10 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 11 303 Kush | THC Classic thcclassic.com(opens in new tab)
- 12 Cannabis Strain 303, 303 OG Kush, 303 Kush Indica THC Dominant ss.strainlists.com(opens in new tab)
- 13 303 Kush Bx - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
13 verified sources
Aromas
Flavors
Terpene profile
Terpene Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 Kush Strain - Effects, THC & Reviews | Strain Report strain.report(opens in new tab)
- 3 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 4 303 Kush Strain Info & Reviews | HashDash hashdash.com(opens in new tab)
- 5 303 Kush | CannaHub UK | Expand Your Cannabis Knowledge cannahub.co.uk(opens in new tab)
- 6 303 Kush Marijuana Strain | Rare Harvest rareharvest.net(opens in new tab)
- 7 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 8 Buy 303 Kush Feminized Seeds | Relaxing Hybrid Kush Strain | Holi Moli Seeds holimoli.com(opens in new tab)
- 9 Cannabis Strain 303, 303 OG Kush, 303 Kush Indica THC Dominant ss.strainlists.com(opens in new tab)
- 10 303 Kush Bx - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
10 verified sources
Terpene Distribution
Terpene profile: Myrcene 0.6%, Pinene 0.4%, Linalool 0.4%, Caryophyllene 0.3%, Limonene 0.2%, Humulene 0.1% .
Myrcene Dominant
Flavor: Earthy, musky, fruity
Full Profile
Myrcene
0.6%
Flavor Profile:
Earthy, musky, fruity
Effects:
Pinene
0.4%
Flavor Profile:
Pine, fresh forest
Effects:
Linalool
0.36%
Flavor Profile:
Floral, lavender, sweet
Effects:
Caryophyllene
0.3%
Flavor Profile:
Spicy, peppery, woody
Effects:
Limonene
0.2%
Flavor Profile:
Citrus, lemon, orange
Effects:
Humulene
0.14%
Flavor Profile:
Hoppy, woody, earthy
Effects:
Appearance
Color Palette
Texture
Dense, chunky indica-style buds with a sticky resinous coating that clings to fingers when handled
Crystal Density
high
Heavy frost coating
Batch context Complete cannabinoid record
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.
High THC (>15%), low CBD (<1%) - Most common recreational strains
03 · AI interpretation
Professor High interprets the pattern
Ahh, this one hits like a warm blanket of fuel-soaked earth. The first exhale rolls out that diesel-coffee combo across your tongue, and within minutes I feel my shoulders drop about three inches. There's a bright flash of euphoric happiness first—my thoughts get playful, almost giggly—before the Myrcene really kicks the door open and I sink deeper into the couch. My eyelids get heavy but my mind stays pleasantly present, cycling through creative little thought loops before mellowing out completely. This is the kind of high that makes conversations feel easy and unhurried, then gently escorts you toward sleep without a fight. Pure indica comfort with just enough spark up front to keep it interesting before the sedation takes the wheel.
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
Meet 303 Kush: Colorado's Legendary Indica
Named after Denver's iconic 303 area code, 303 Kush (also known as 303 OG or 303 OG Kush) has earned its reputation as one of Colorado's most cherished indica-dominant strains. Bred by Zombo and distributed through The Bank Genetics seed bank in the 2000s, this strain carries a heavy-hitting legacy that continues to command respect among cannabis connoisseurs who crave deep relaxation paired with genuine euphoria.
🧬 Genetic Heritage & Lineage
303 Kush results from crossing two legendary genetics: Chemdawg and Pre-98 Bubba Kush. This pairing creates a 60% Indica / 40% Sativa hybrid classified as a Type II chemovar, meaning it delivers a balanced THC-to-terpene interaction. Chemdawg contributes its pungent, fuel-forward genetics and cerebral punch, while Pre-98 Bubba Kush lends its signature body-melting relaxation and earthy depth. The result is a strain that bridges the gap between heavy-duty nighttime indicas and more nuanced hybrid experiences.
👃 Terpene Profile & Aromatics
Lab testing confirms Myrcene as the dominant terpene (0.6%), setting the stage for that classic sedating, couch-lock foundation. Pinene (0.4%) adds a sharp, alert edge that keeps the high from feeling too foggy, while Caryophyllene (0.3%) brings peppery warmth and its signature CB2-receptor interaction known for soothing physical discomfort. Rounding out the profile, Linalool (0.36%) contributes floral calm, and Humulene (0.14%) adds subtle earthiness. Together, these terpenes create a complex bouquet of earthy, pungent, woody, diesel, and coffee notes, with underlying hints of spicy, citrus, pine, and floral accents that make each inhale an evolving experience.
👅 Flavor Experience
Your first inhale delivers bold diesel and earthy coffee notes reminiscent of freshly ground beans mixed with fuel. As the smoke settles on your palate, woody and spicy undertones emerge, followed by a smooth pine and herbal finish. Some phenotypes reveal subtle chocolate and nutty notes on the exhale, rounding out a flavor journey that's as layered as its genetic lineage.
🎯 Effects & Experience
303 Kush's effects unfold in stages. The onset brings a wave of euphoric happiness and social warmth, often accompanied by bursts of creativity and focus. As Myrcene and the indica genetics take hold, you'll settle into deep relaxation, with sleepiness creeping in during the later stages. This makes it a strain that transitions beautifully from an engaged, uplifted afternoon into a heavy-eyed, restful evening.
🎮 Use Cases & Activities
This strain excels during evening wind-down sessions, social gatherings where mellow conversation flows easily, and dedicated relaxation or sleep prep routines. Its body-forward relief also makes it a solid companion for stress management after a long day.
💚 Medical & Therapeutic Potential
Users commonly report that 303 Kush may help ease anxious thoughts, manage stress, and elevate mood. On the physical side, its Myrcene-Caryophyllene combination may support pain relief, muscle tension release, and improved sleep quality, while also potentially stimulating appetite.
👁️ Visual Characteristics
Expect dense, chunky indica-style buds wrapped in deep forest green with hints of olive and purple undertones. Fiery orange pistils weave through the trichome-frosted surface, which shimmers under light thanks to heavy resin coverage.
🏆 Awards & Recognition
303 Kush concentrates took 1st Place for Best U.S. Concentrates in 2014, and the strain earned additional recognition at the 2018 Grow Off Awards for its potency and terpene yields.
📜 Cultural Context & Consumer Considerations
Deeply tied to Colorado's cannabis culture, 303 Kush remains commonly available and beloved by both newcomers and veteran indica lovers. First-timers should start slow given THC levels that can climb toward 25%, and be prepared for possible dry mouth, dry eyes, or dizziness.
Practical guide How people use it
Recommended Methods
Where it comes from Origins and lineage
Lineage Sources
- 1 303 Kush strain leafly.com(opens in new tab)
- 2 303 Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 303 Kush Marijuana Strain leafwell.com(opens in new tab)
- 4 303 Kush Strain Info & Reviews | HashDash hashdash.com(opens in new tab)
- 5 303 Kush | ׂ303 OG | 330 OG Kush - Hybrid Cannabis Strain - 9leaves 9leaves.com(opens in new tab)
- 6 303 OG Kush - Strains weedmaps.com(opens in new tab)
- 7 303 Kush | CannaHub UK | Expand Your Cannabis Knowledge cannahub.co.uk(opens in new tab)
- 8 303 Kush Marijuana Strain | Rare Harvest rareharvest.net(opens in new tab)
- 9 303 Og Kush Strain Review & Info |2022| AskGrowers askgrowers.com(opens in new tab)
- 10 303 OG: Why Colorado Tokers Love This Strain westword.com(opens in new tab)
- 11 Buy 303 Kush Feminized Seeds | Relaxing Hybrid Kush Strain | Holi Moli Seeds holimoli.com(opens in new tab)
- 12 303 OG (Unknown or Legendary) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 13 303 Kush | THC Classic thcclassic.com(opens in new tab)
- 14 Cannabis Strain 303, 303 OG Kush, 303 Kush Indica THC Dominant ss.strainlists.com(opens in new tab)
- 15 303 Kush Bx - Cannabis Strain | Cannapedia cannapedia.ai(opens in new tab)
15 verified sources
303 Kush is a cross between Chemdawg and Pre-98 Bubba Kush, known for its potent indica-dominant effects and complex flavor profile.
Genetics
Origin Timeline
First cultivated in 2000
Breeder
Zombo
Seed Bank
The Bank Genetics
On the record Awards and recognition
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
Won awards in the Grow Off for their potency and terpene yields
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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
- 16
- Sourced sections
- 9
- Claims under review
- 90
- Profile updated
- Sep 14, 2026
Research Edition Current profile edition
Updated September 14, 2026 · 9 profile areas with section-level sourcing Featured research profile
This edition records This Is Why I'm High’s synthesis of published information about 303 Kush. It describes source-supported patterns and uncertainty; it does not certify genetics, potency, safety, or any product batch.
- Profile sources
- 16
- Research evidence confidence
- 71%
- 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 16 sources
- Lineage 15 sources
- Cannabinoids 12 sources
- Terpenes 10 sources
- Reported effects 15 sources
- Aromas 13 sources
- Flavors 14 sources
- Reported medical uses 15 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
What does the research say about 303 Kush?
303 Kush is a indica cannabis strain containing up to 25.0% THC, with a terpene profile dominated by Myrcene and Pinene. 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.
Power-user detail Open sources and methodology
Research Methodology
How we compiled this strain profile
This strain profile was compiled from 16 published sources covering '303 Kush'. Our research pipeline cross-references these sources and reports how strongly they agree — see the confidence breakdown below.
Data Quality by Section
Suggest a Factual Correction
Flag a name, lineage, source, image, or chemistry issue for private editorial review.
Suggest a Factual Correction
Flag a name, lineage, source, image, or chemistry issue for private editorial review.