Strain experience guide
UW
Also known as U-Dub, UW Purple, UW Purp, U Dub, UW Black, Black 84, UW Black '84, UW Hashplant, University of Washington Purple, Udub
UW (aka U-Dub or UW Purple) is a legendary Pacific Northwest indica-dominant strain with Afghan and Northern Lights heritage. Delivering deep physical relaxation, sweet berry-grape flavors, and powerful sedation, this Seattle icon is the ultimate nighttime companion for stress relief, pain management, and a smooth descent into restorative sleep. Read more Show less
Quick Hits
What kind of high is UW?
An indica-dominant hybrid reported as relaxed, euphoric and sleepy. Picked for sleep & bedtime and watching tv/movies at night. The profile features earthy berry flavor, spicy berry 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.
- Caryophyllene Spicy, peppery, woody
- Pinene Pine, fresh forest
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.
- Euphoric
- Sleepy
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
- Sweet
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 →- Grape
- Sweet
- Best Time Night
- Era 1984
- 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
The memorable details
- Deep indica sedation ideal for insomnia and nighttime pain relief
- Sweet berry-grape flavor profile driven by Myrcene and Caryophyllene
- Pacific Northwest legend — a Seattle clone-only strain since the 1980s
- THC ranging 13–26% makes dosing mindfully essential for all users
Explore the full profile Complete experience record
Mind, body, and energy
Best enjoyed during night
Deep relaxation and sleep
Activities people choose it for
Effect Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 3 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 4 UW Weed Strain Review and Information ilovegrowingmarijuana.com(opens in new tab)
- 5 UW (Clone Only Strains) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 6 UW Strain - Indica Cannabis Review, hytiva.com(opens in new tab)
- 7 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
- 8 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 9 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 10 hazyrec.com hazyrec.com(opens in new tab)
- 11 SeattleSoda Strain - Growing Tips and Medical Effects | Marijuana Guides marijuana-guides.com(opens in new tab)
- 12 cannazen.co.uk cannazen.co.uk(opens in new tab)
12 verified sources
Therapeutic reports
Medical Effect Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 3 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 4 UW Weed Strain Review and Information ilovegrowingmarijuana.com(opens in new tab)
- 5 UW (Clone Only Strains) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 6 UW Strain - Indica Cannabis Review, hytiva.com(opens in new tab)
- 7 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
- 8 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 9 SeattleSoda Strain - Growing Tips and Medical Effects | Marijuana Guides marijuana-guides.com(opens in new tab)
- 10 cannazen.co.uk cannazen.co.uk(opens in new tab)
10 verified sources
Mental Effects
- •Stress Relief
Calms racing thoughts and reduces tension
- •Anxiety Management
Eases anxious feelings and promotes relaxation
- •Mood Enhancement
Elevates mood and induces euphoric state
- •Depression Support
Helps alleviate depressive symptoms temporarily
Professor High visualization
Body Effects
- •Pain Relief
Reduces chronic pain and muscle tension effectively
- •Sleep Support
Promotes deep sleep and reduces insomnia symptoms
- •Muscle Relaxation
Eases muscle spasms and promotes relaxation
- •Appetite Stimulation
Increases appetite and food intake desire
- •Migraine Relief
Reduces severity and frequency of migraines
- •Anti-inflammatory
Reduces joint inflammation and swelling
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 UW 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 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 3 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 4 UW | hybrid Weed Strain cannapages.com(opens in new tab)
- 5 UW Weed Strain Review and Information ilovegrowingmarijuana.com(opens in new tab)
- 6 UW (Clone Only Strains) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 7 UW Strain - Indica Cannabis Review, hytiva.com(opens in new tab)
- 8 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
- 9 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 10 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 11 hazyrec.com hazyrec.com(opens in new tab)
- 12 SeattleSoda Strain - Growing Tips and Medical Effects | Marijuana Guides marijuana-guides.com(opens in new tab)
- 13 cannazen.co.uk cannazen.co.uk(opens in new tab)
13 verified sources
Aromas
Flavors
Terpene profile
Terpene Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 3 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
- 4 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 5 SeattleSoda Strain - Growing Tips and Medical Effects | Marijuana Guides marijuana-guides.com(opens in new tab)
- 6 cannazen.co.uk cannazen.co.uk(opens in new tab)
6 verified sources
Terpene Distribution
Terpene profile: Myrcene 0.8%, Caryophyllene 0.5%, Pinene 0.1%, Humulene 0.1%, Linalool 0.1%, Ocimene 0.1%, Terpinolene 0.0% .
Myrcene Dominant
Flavor: Earthy, musky, fruity
Full Profile
Myrcene
0.85%
Flavor Profile:
Earthy, musky, fruity
Effects:
Caryophyllene
0.45%
Flavor Profile:
Spicy, peppery, woody
Effects:
Pinene
0.15%
Flavor Profile:
Pine, fresh forest
Effects:
Humulene
0.15%
Flavor Profile:
Hoppy, woody, earthy
Effects:
Linalool
0.1%
Flavor Profile:
Floral, lavender, sweet
Effects:
Ocimene
0.05%
Flavor Profile:
Sweet, herbaceous, woody
Effects:
Terpinolene
0.02%
Flavor Profile:
Fresh, piney, floral, citrus
Effects:
Appearance
Color Palette
Texture
Dense, chunky indica buds with a tight structure and heavy resin coating. Surface feels slightly sticky and crystalline due to generous trichome coverage.
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
Right, so the first thing I noticed was this warmth — like someone turned up the thermostat from the inside out. It starts in the chest, spreads across the shoulders, and then just... melts everything. The mental side is genuinely lovely — there's this soft euphoric cushion that settles around your thoughts, not the kind that makes you race, but the kind that makes everything feel gently resolved. I'm tasting grape and sweet berry with every exhale, and that Beta-Caryophyllene is definitely doing work because the tension in my lower back has basically dissolved. This is Myrcene doing what Myrcene does best — it's like the terpene equivalent of a weighted blanket. The sedation is building steadily, not abruptly. I'm lucid enough to appreciate the complexity of this experience, but my body is clearly filing a very polite but firm request to lie down soon. UW is the kind of strain that doesn't need to shout — it just quietly takes care of you.
Read this as an interpretation of the profile—not clinical advice, a product rating, or a guarantee.
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Go deeper
The helpful detail
UW (U-Dub): Seattle's Legendary Indica
UW — also known as U-Dub, UW Purple, or UW Purp — is one of the Pacific Northwest's most storied cannabis strains. Born from the underground cannabis culture surrounding the University of Washington in Seattle, this 80% indica / 20% sativa cultivar carries decades of regional history and a devoted following that stretches well beyond the Emerald City. Whether you call it UW, UW Purple, or its rarer alias Black '84, this is a strain with deep roots, complex flavors, and a powerfully sedating character.
🧬 Genetic Heritage & Lineage
The full genetic picture of UW is somewhat shrouded in mystery — a hallmark of its clone-only origin and underground provenance. Most sources trace its lineage back to Afghan landrace genetics, with Northern Lights frequently cited as a key ancestor. Some sources reference an early creation date of 1984, giving rise to the nickname Black '84. The strain is believed to have circulated in clone form throughout the Seattle cannabis community beginning in the late 1980s to early 1990s, eventually evolving into the various phenotypes now known as UW Purple, UW Hashplant, and UW Black. Its breeder is loosely attributed to the University of Washington community, though no formal breeder has claimed official credit.
👃 Terpene Profile & Aromatics
UW's terpene profile is lab-tested and well-documented, making it one of the more scientifically grounded aspects of this storied strain. The dominant terpenes include:
| Terpene | % | Effect Contribution |
|---|---|---|
| Myrcene | 0.85% | Sedating, body-heavy relaxation |
| Beta-Caryophyllene | 0.45% | Pain relief, CB2 receptor activity |
| Alpha-Pinene | 0.15% | Mild alertness, memory retention |
| Humulene | 0.15% | Anti-inflammatory |
| Linalool | 0.10% | Calming, sleep-promoting |
Myrcene dominates at 0.85%, which largely explains UW's deep body sedation and classic "couch-lock" indica character. Beta-Caryophyllene adds a spicy, peppery backbone to both the aroma and the analgesic profile. You'll notice the aroma is a rich, layered bouquet — opening with sweet berry and grape, deepening into earthy pine and spice, and finishing with a subtle floral and sage undertone. The overall nose is pungent and inviting, reminiscent of a ripe fruit bowl set on a forest floor.
👅 Flavor Experience
On the inhale, you'll encounter a lush wave of sweet berry and grape — the kind of flavor that makes you pause and take note. The mid-palate opens into earthy pine and herbal spice, adding depth and complexity. On the exhale, expect a slightly peppery, spicy finish with lingering herbal and woody notes. The full flavor journey is smooth and satisfying, making UW a pleasure to enjoy in any form.
🎯 Effects & Experience
UW delivers a classically indica experience with a gentle euphoric onset that transitions into deep physical relaxation. Effects typically begin within minutes:
- Onset (0–10 min): Warm euphoria washes over the mind; mood lifts, tension dissolves
- Peak (20–60 min): Heavy body relaxation sets in; muscles loosen, thoughts slow pleasantly
- Late Stage (60+ min): Strong sedation and sleepiness; appetite stimulation common
THC ranges from 13–26% across phenotypes, so potency can vary significantly by batch. Novice consumers should approach with caution, while seasoned users will appreciate the strain's reliable, enveloping sedation.
🎮 Use Cases & Activities
UW excels as an evening and nighttime strain. You'll find it pairs well with:
- Unwinding after a long, stressful day
- Settling in for a movie or low-stimulation entertainment
- Preparing your body and mind for restful sleep
- Managing physical discomfort or tension
💚 Medical & Therapeutic Potential
UW may help with a range of conditions, supported by its terpene chemistry:
- Insomnia: Myrcene + Linalool combination strongly supports sleep onset
- Chronic pain: Beta-Caryophyllene's CB2 agonism may provide meaningful relief
- Stress & anxiety: The deep body relaxation may help quiet anxious thought patterns
- Muscle spasms: Frequently cited by users managing tension and spasms
- Appetite stimulation: The "munchies" effect is notably reported
👁️ Visual Characteristics
UW Purple is visually striking. Buds are dense and chunky, typical of its heavy indica genetics. You'll notice deep forest green base coloration accented by rich purple and violet hues — especially in cooler-grown phenotypes. Rust-orange pistils weave through the buds, and a generous coating of frosty white trichomes gives the flower a crystalline, almost sugared appearance.
📜 Cultural Context & Lore
UW holds a special place in Pacific Northwest cannabis culture. Named after the University of Washington in Seattle, it became a local legend — passed from grower to grower as a coveted clone. Its various phenotypes (UW Purple, UW Black, UW Hashplant) reflect the strain's long journey through Seattle's underground cannabis community. Today, it remains a point of regional pride and is regularly featured in Washington State dispensaries.
⚠️ Consumer Considerations
Best suited for intermediate to experienced consumers due to its potentially high THC content and strong sedative effects. New consumers should start with a small dose and allow 20–30 minutes before redosing. Dry mouth and dry eyes are the most commonly reported side effects — stay hydrated and keep eye drops handy.
Practical guide How people use it
Recommended Methods
Where it comes from Origins and lineage
Lineage Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 3 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 4 UW | hybrid Weed Strain cannapages.com(opens in new tab)
- 5 UW (Clone Only Strains) :: Cannabis Strain Info seedfinder.eu(opens in new tab)
- 6 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 7 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 8 hazyrec.com hazyrec.com(opens in new tab)
- 9 cannazen.co.uk cannazen.co.uk(opens in new tab)
9 verified sources
UW is an indica-dominant strain with Northern Lights in its lineage, originating from the 1990s. Also known as U-Dub or UW Purple, it represents a clone-only strain with roots tracing back to unknown indica varieties and Afghan landrace genetics.
Genetics
Origin Timeline
First cultivated in 1984
Breeder
University of Washington
Seed Bank
ILGM
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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
- 19
- Sourced sections
- 8
- Claims under review
- 76
- Profile updated
- Aug 31, 2026
Research Edition Current profile edition
Updated August 31, 2026 · 8 profile areas with section-level sourcing Researched profile
This edition records This Is Why I'm High’s synthesis of published information about UW. It describes source-supported patterns and uncertainty; it does not certify genetics, potency, safety, or any product batch.
- Profile sources
- 19
- Research evidence confidence
- 68%
- Edition date
- August 31, 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 13 sources
- Lineage 9 sources
- Cannabinoids 7 sources
- Terpenes 6 sources
- Reported effects 12 sources
- Aromas 13 sources
- Flavors 13 sources
- Reported medical uses 10 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 UW?
UW is a indica cannabis strain containing up to 26.0% THC, with a terpene profile dominated by Myrcene and Caryophyllene. 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 19 published sources covering 'UW'. 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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