UW Purple
aka UW Purp, U Dub, U-Dub +5 more
UW Purple is a legendary indica-dominant strain (85/15) from University of Washington's 1990s research programs, delivering powerful full-body relaxation and sedating effects. With THC levels ranging 14-26% and a myrcene-rich terpene profile, this Pacific Northwest classic offers sweet berry-grape flavors with earthy-pine undertones. Ideal for evening use, it provides profound stress relief, pain management, and sleep support through its deeply calming, couch-lock inducing effects that have made it a beloved strain among indica enthusiasts for over two decades.
The Short Answer
What kind of high is UW Purple?
Caryophyllene-led and sweet-berry on the palate, most often reported relaxed and picked for sleep & bedtime at night.
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 →- Anti inflammatory
- Pain relief
- Anti anxiety
- Myrcene Earthy, musky, fruity
- Pinene Pine, fresh forest
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 →- Grape
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.
See the full profile →- Sweet
- Grape
- Best Time night
- Era 1990
- Rarity Uncommon
Genetics Indica 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 →
Your guided read
6 chapters on UW Purple
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
Settling into the couch about fifteen minutes after smoking UW Purple
Okay, so here's what's happening right now... the initial cerebral lift was subtle but genuinely pleasant—like someone gently adjusted my mood dial from "concerned about tomorrow's tasks" to "everything's probably going to work out fine." That euphoric quality isn't overwhelming or racy; it's more like a warm, contented glow spreading through my thoughts.
But here's where this strain really shows its indica credentials: my body feels like it's made of warm honey. The myrcene is clearly doing its job—I can feel that characteristic muscle-melting sensation radiating from my core outward. It's not sedation in the "I'm sleepy" sense yet, but more like profound physical comfort where moving feels entirely optional. The caryophyllene seems to be working its CB2 magic on some shoulder tension I've been carrying—it's just... gone.
The flavor is lingering beautifully too—sweet grape-berry notes mixing with earthy pine on each exhale. About thirty minutes in now, and the sleepiness is starting to creep in like a gentle tide. This is textbook indica pharmacology at work: the high myrcene content creating that sedating effect, the terpene synergy amplifying the body effects. I'm genuinely impressed by how this cultivar delivers exactly what the terpene profile promises. Time to investigate what's in the fridge before this couch becomes permanent.
Effects Profile
Relaxed · Euphoric · Sleepy
Best enjoyed during night
Deep relaxation and sleep
Best For
Sleep & Bedtime · Stress Relief · Relaxing
Effect Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 4 UW Purple (Green Acres Pharm) | Jenni Strains Hub jenni.dispensaries.bz(opens in new tab)
- 5 UW Purple buddyboyfarm.com(opens in new tab)
- 6 UW (Clone Only Strains) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 7 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 8 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 9 UW Purple - Top BC Cannabis - Online Dispensary topbcbuds.cc(opens in new tab)
- 10 UW Purple Cannabis Strain Information - GrowDiaries growdiaries.com(opens in new tab)
- 11 UW Purple Strain Archives | World Of Weed worldofweed.com(opens in new tab)
- 12 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
12 verified sources
Look, Aroma & Taste
Aroma & Flavor
Sweet · Berry · Grape
Aroma & Flavor Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 4 UW Purple (Green Acres Pharm) | Jenni Strains Hub jenni.dispensaries.bz(opens in new tab)
- 5 UW Purple buddyboyfarm.com(opens in new tab)
- 6 UW (Clone Only Strains) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 7 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 8 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 9 UW Purple - Top BC Cannabis - Online Dispensary topbcbuds.cc(opens in new tab)
- 10 UW | hybrid Weed Strain cannapages.com(opens in new tab)
- 11 UW Purple Cannabis Strain Information - GrowDiaries growdiaries.com(opens in new tab)
- 12 UW Purple Strain Archives | World Of Weed worldofweed.com(opens in new tab)
- 13 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
13 verified sources
Aromas
Flavors
Terpene Profile
Caryophyllene leads · 8 terpenes mapped
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 - Leaf Magazines leafmagazines.com(opens in new tab)
- 4 UW Purple Cannabis Strain Information - GrowDiaries growdiaries.com(opens in new tab)
- 5 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
5 verified sources
Terpene Distribution
Terpene profile: Caryophyllene 1.7%, Myrcene 0.8%, Pinene 0.3%, Humulene 0.3%, Linalool 0.1%, Ocimene 0.1%, Terpinolene 0.1% .
Caryophyllene Dominant
Flavor: Spicy, peppery, woody
Myrcene
Flavor: Earthy, musky, fruity
Pinene
Flavor: Pine, fresh forest
Humulene
Flavor: Hoppy, woody, earthy
Linalool
Flavor: Floral, lavender, sweet
Ocimene
Flavor: Sweet, herbaceous, woody
Terpinolene
Flavor: Fresh, piney, floral, citrus
Full Profile
Caryophyllene
1.68%
Flavor Profile:
Spicy, peppery, woody
Effects:
Myrcene
0.85%
Flavor Profile:
Earthy, musky, fruity
Effects:
Pinene
0.25%
Flavor Profile:
Pine, fresh forest
Effects:
Humulene
0.25%
Flavor Profile:
Hoppy, woody, earthy
Effects:
Linalool
0.125%
Flavor Profile:
Floral, lavender, sweet
Effects:
Ocimene
0.05%
Flavor Profile:
Sweet, herbaceous, woody
Effects:
Terpinolene
0.05%
Flavor Profile:
Fresh, piney, floral, citrus
Effects:
Limonene
Not lab-measured
Flavor Profile:
Citrus, lemon, orange
Effects:
Appearance
Deep forest green · Royal purple undertones
Color Palette
Texture
Medium to dense bud structure with tightly-packed calyxes and substantial hand feel. Extremely resinous with sticky-to-touch trichome coverage that leaves residue on fingers.
Crystal Density
very high
Exceptional crystal coverage
Chemistry & Research
Medical Effects
6 reported therapeutic uses on file
Medical Effect Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 4 UW Purple (Green Acres Pharm) | Jenni Strains Hub jenni.dispensaries.bz(opens in new tab)
- 5 UW (Clone Only Strains) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 6 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 7 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 8 UW Purple - Top BC Cannabis - Online Dispensary topbcbuds.cc(opens in new tab)
- 9 UW Purple Cannabis Strain Information - GrowDiaries growdiaries.com(opens in new tab)
- 10 UW Purple Strain Archives | World Of Weed worldofweed.com(opens in new tab)
- 11 UW Purple Weed Strain Review & Info strains.uk(opens in new tab)
11 verified sources
Mental Effects
- •Stress Relief
Reduces mental tension and racing thoughts effectively
- •Anxiety Relief
Calms anxiety without overwhelming sedation
- •Depression Support
Elevates mood and promotes emotional wellbeing
Professor High visualization
Body Effects
- •Pain Relief
Reduces chronic pain and muscle tension significantly
- •Sleep Support
Promotes deep sleep and addresses insomnia
- •Muscle Relaxation
Eases muscle spasms and physical tension
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 UW Purple?
UW Purple is a indica cannabis strain containing up to 26.0% THC, with a terpene profile dominated by Caryophyllene and Myrcene. 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 14-26% · 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
Granddaddy Purple × Northern Lights · bred by University of Washington
Lineage Sources
- 1 Uw Strain: A Comprehensive Strain Guide app.jointcommerce.com(opens in new tab)
- 2 UW Purple Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 3 How Did UW Purple Get Its Name? seattlehashtag.com(opens in new tab)
- 4 UW Purple (Green Acres Pharm) | Jenni Strains Hub jenni.dispensaries.bz(opens in new tab)
- 5 UW Purple buddyboyfarm.com(opens in new tab)
- 6 UW (Clone Only Strains) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 7 UW Purple aka UW, U Dub Weed Strain Information leafly.com(opens in new tab)
- 8 UW Purple - Leaf Magazines leafmagazines.com(opens in new tab)
- 9 UW Purple - Top BC Cannabis - Online Dispensary topbcbuds.cc(opens in new tab)
- 10 UW | hybrid Weed Strain cannapages.com(opens in new tab)
- 11 UW Purple Strain Archives | World Of Weed worldofweed.com(opens in new tab)
11 verified sources
UW Purple is an indica-dominant strain with origins traced to the University of Washington research programs in the 1990s. Various lineages suggest parent genetics including Granddaddy Purple, Northern Lights, Mendocino Purps, Haze, and Afghan strains.
Genetics
Origin Timeline
First cultivated in 1990
Breeder
University of Washington
Seed Bank
Clone Only Strains
The Full Story
Detailed Description
The long-form profile · ~5 min read
Introducing UW Purple: A Pacific Northwest Legend
UW Purple stands as one of the most revered indica strains to emerge from the Pacific Northwest cannabis scene. Born from research programs at the University of Washington in the 1990s, this strain has earned legendary status among connoisseurs who appreciate powerful, sedating effects wrapped in complex purple-hued buds. Often called U-Dub or UW Purp by longtime enthusiasts, this strain represents a significant chapter in American cannabis breeding history, combining old-school genetics with research-backed cultivation techniques that were ahead of their time.
What makes UW Purple particularly special is its near-pure indica genetics (approximately 85% indica / 15% sativa), delivering the kind of deep, full-body relaxation that has made it a Pacific Northwest staple for over two decades. With THC levels ranging from 14% to 26% depending on the phenotype and growing conditions, this strain offers flexibility for both novice and experienced consumers seeking profound relaxation and sleep support.
🧬 Genetic Heritage & Lineage
The exact lineage of UW Purple remains somewhat mysterious, adding to its mystique. Various sources trace its parentage to a combination of elite genetics including Granddaddy Purple, Northern Lights, Mendocino Purps, Haze, and Afghan landrace strains. This diverse genetic background explains the strain's complex effects profile and rich terpene content.
Bred at the University of Washington during cannabis research programs in the 1990s, UW Purple emerged during a pivotal era when West Coast breeders were perfecting purple-flowering indica varieties. The strain's development coincided with increased scientific understanding of cannabinoid and terpene interactions, resulting in a meticulously crafted cultivar designed for maximum therapeutic potential. The strain is primarily available as a clone-only variety, which has helped maintain its genetic integrity over the decades.
👃 Terpene Profile & Aromatics
UW Purple showcases an exceptional terpene profile dominated by Myrcene (0.85%), the quintessential sedating terpene that contributes to the strain's renowned couch-lock effects. This high myrcene content creates the foundation for the strain's powerful body-melting relaxation. Beta-Caryophyllene (0.45%) adds a spicy, peppery dimension while activating CB2 receptors for enhanced pain relief. Alpha-Pinene (0.25%) and Humulene (0.25%) provide earthy, piney notes alongside anti-inflammatory properties, while Linalool (0.125%) contributes calming floral undertones reminiscent of lavender.
The aroma experience begins with sweet berry and grape notes that immediately announce this strain's purple lineage. As you break apart the dense buds, you'll notice earthy, pine, and spicy undertones that create remarkable depth. Some phenotypes express tropical fruit characteristics mixed with woody and pungent base notes. The floral quality from linalool adds sophistication to what might otherwise be a straightforward sweet-and-earthy profile. This complex aromatic bouquet intensifies as the buds are ground, releasing waves of sage and herbal scents that hint at the strain's potent effects.
👅 Flavor Experience
The flavor journey of UW Purple mirrors its aromatic complexity with delicious results. On the initial inhale, you'll taste sweet berry and grape flavors that coat your palate with fruity richness. The mid-palate introduces pine, earthy, and spicy notes that ground the sweetness with natural cannabis character. Some consumers detect herbal and sage undertones that add sophistication, along with a distinctive hash-like quality that speaks to the strain's resinous nature.
The exhale leaves a pleasant fruity aftertaste with lingering woody notes and subtle spice. This flavor profile remains consistent across different consumption methods, though vaporizing at lower temperatures (350-375°F) can emphasize the fruity terpenes while higher temperatures bring out the earthy, spicy characteristics.
🎯 Effects & Experience
UW Purple delivers a powerful indica experience that unfolds in distinct phases. Within 5-10 minutes of consumption, you'll notice a gentle euphoric sensation washing over your mind, bringing happiness and contentment without overwhelming cerebral intensity. This mental uplift is brief but pleasant, creating a positive headspace before the physical effects take center stage.
By the 15-20 minute mark, the strain's true indica nature reveals itself through profound full-body relaxation. Muscles release tension, joints feel looser, and a comforting heaviness settles throughout your limbs. Users consistently report feeling deeply relaxed and calm, with many experiencing the classic "couch-lock" effect that makes movement feel optional rather than necessary.
As the experience progresses into the 30-60 minute range, sleepiness becomes increasingly prominent, making this an ideal pre-bedtime strain. Many consumers report increased appetite (the "munchies"), so having snacks prepared is advisable. The sedating qualities intensify over 1-2 hours, with effects typically lasting 2-4 hours total depending on dosage and consumption method. The comedown is gentle, often transitioning seamlessly into restful sleep.
💚 Medical & Therapeutic Potential
UW Purple's terpene-rich profile and high myrcene content make it a popular choice among medical cannabis patients. The strain may help with chronic pain conditions, as the combination of caryophyllene's CB2 activation and myrcene's analgesic properties creates powerful pain-relieving effects. Patients dealing with muscle spasms, inflammation, and physical tension often report significant relief.
For mental wellness, UW Purple may help address stress, anxiety, and depression through its calming, mood-elevating effects. The sleep support this strain provides makes it particularly valuable for individuals struggling with insomnia or disrupted sleep patterns. The sedating effects help quiet racing thoughts and promote the deep, restorative sleep many patients desperately need.
👁️ Visual Characteristics
True to its name, UW Purple produces stunning purple-hued buds adorned with deep forest green base tones and royal purple undertones throughout. The flowers display medium to dense structure with tightly-packed calyxes that feel substantial in hand. Fiery orange to rust-colored pistils wind through the purple and green landscape, creating beautiful contrast.
The trichome coverage ranges from high to very high, giving the buds a frosty, crystalline appearance that sparkles under light. The resin production is impressive, leaving fingers sticky after handling. Well-grown examples showcase the full spectrum of purple coloration, especially when exposed to cooler temperatures during the flowering cycle.
📜 Cultural Context & Consumer Considerations
UW Purple holds special significance in Pacific Northwest cannabis culture, representing the region's contribution to indica breeding excellence. While it never achieved the widespread commercial success of strains like Blue Dream or Girl Scout Cookies, it maintains a devoted following among indica enthusiasts who appreciate its consistent, reliable effects and rich genetic heritage.
This strain is best suited for evening or nighttime use due to its sedating nature. Novice consumers should start with lower doses (one or two puffs if smoking, 5-10mg if consuming edibles) as the effects can be quite powerful. Experienced users seeking maximum sedation may find higher THC phenotypes (20-26%) ideal for their needs, while those new to indica strains might prefer lower THC versions (14-18%) that offer gentler introduction to heavy-body effects.
Research Methodology
How we compiled this strain profile
This strain profile was compiled from 19 published sources covering 'UW Purple'. 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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