Serious Kush
aka SK, White Russian OG, OG Kush
Serious Kush is a powerhouse 80-85% indica-dominant strain from Serious Seeds that crosses White Russian with OG Kush genetics. With 18-24% THC and a terpene profile dominated by myrcene and caryophyllene, it delivers deeply sedating effects perfect for evening relaxation. Expect profound physical relief, couch-locking body buzz, and strong sleep-inducing properties wrapped in classic earthy-pine-kush aromatics. Award-winning and potent, this strain excels at melting away stress, pain, and insomnia.
The Short Answer
What kind of high is Serious Kush?
Myrcene-led and earthy-pine 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 →- Sedating
- Muscle relaxant
- Anti inflammatory
- 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 →- Sweet
- Kush
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
- Best Time night
- Era 2017
- Rarity Common
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 Serious Kush
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
I'm sinking into the couch about fifteen minutes after consumption, and the gravitational pull of Serious Kush is absolutely undeniable. What started as a gentle wave of euphoric mental clarity has evolved into this profound full-body sedation that feels like warm honey spreading through every muscle fiber. The myrcene-caryophyllene combination creates this fascinating dual-action effect - my mind floats in this peaceful, stress-free space while my body experiences what I can only describe as therapeutic melting.
The physical relief is remarkable from a pharmacological standpoint - that 40% myrcene content is clearly working synergistically with the cannabinoids to produce genuine analgesic effects. Every point of tension I was carrying just dissolves, replaced by this encompassing sense of physical comfort. The caryophyllene adds this anti-inflammatory dimension I can actually feel in my joints.
What's particularly interesting is how the White Russian genetics provide that initial cerebral sparkle before the OG Kush characteristics dominate completely. It's like watching the transition from sativa to indica effects in real-time - absolutely fascinating for research purposes. The appetite stimulation is intense, and cognitive function is definitely shifting toward rest mode. This is serious indica science in action.
Effects Profile
Relaxed · Euphoric · Sleepy
Best enjoyed during night
Deep relaxation and sleep
Best For
Sleep & Bedtime · Relaxing · Stress Relief
Effect Sources
- 1 Serious Kush by Serious Seeds: A Comprehensive Strain Guide - Blog - JointCommerce app.jointcommerce.com(opens in new tab)
- 2 Serious Kush Female Cannabis Seeds by Serious Seeds puresativa.com(opens in new tab)
- 3 Feminized Serious Kush by Serious Seeds - Grow Barato growbarato.net(opens in new tab)
- 4 Serious Kush - Samsara Seeds - Root Catalog samsaraseeds.com(opens in new tab)
- 5 Serious Kush Strain ® Originally Bred by Serious Seeds seriousseeds.com(opens in new tab)
- 6 Serious Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 7 Serious Kush Weed Strain Information leafly.com(opens in new tab)
- 8 Serious Kush Seeds by Serious Seeds growdiaries.com(opens in new tab)
- 9 Serious Kush - Buy Serious Seeds cannabis seeds dinafem.org(opens in new tab)
- 10 Kush Gets Serious hightimes.com(opens in new tab)
- 11 Serious Kush - Cannabis Seeds from Serious Seeds deliciousseeds.com(opens in new tab)
- 12 Serious Kush | Serious Female Cannabis Seeds cannabis-seeds-bank.co.uk(opens in new tab)
- 13 Serious Seeds - Serious Kush (Feminized) weedworld.co.uk(opens in new tab)
- 14 Serious Kush (Serious Seeds) feminized zamnesia.com(opens in new tab)
- 15 Serious Kush santyerbasi.com(opens in new tab)
- 16 Serious Kush (Serious Seeds) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 17 Serious Kush Weed Strain Review & Info strains.uk(opens in new tab)
- 18 cannaconnection.com cannaconnection.com(opens in new tab)
18 verified sources
Look, Aroma & Taste
Aroma & Flavor
Earthy · Sweet · Kush
Aroma & Flavor Sources
- 1 Serious Kush by Serious Seeds: A Comprehensive Strain Guide - Blog - JointCommerce app.jointcommerce.com(opens in new tab)
- 2 Serious Kush Female Cannabis Seeds by Serious Seeds puresativa.com(opens in new tab)
- 3 Feminized Serious Kush by Serious Seeds - Grow Barato growbarato.net(opens in new tab)
- 4 Serious Kush - Samsara Seeds - Root Catalog samsaraseeds.com(opens in new tab)
- 5 Serious Kush Strain ® Originally Bred by Serious Seeds seriousseeds.com(opens in new tab)
- 6 Serious Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 7 Serious Kush Weed Strain Information leafly.com(opens in new tab)
- 8 Serious Kush Seeds by Serious Seeds growdiaries.com(opens in new tab)
- 9 Serious Kush - Buy Serious Seeds cannabis seeds dinafem.org(opens in new tab)
- 10 Kush Gets Serious hightimes.com(opens in new tab)
- 11 Serious Kush - Cannabis Seeds from Serious Seeds deliciousseeds.com(opens in new tab)
- 12 Serious Kush | Serious Female Cannabis Seeds cannabis-seeds-bank.co.uk(opens in new tab)
- 13 Serious Seeds - Serious Kush (Feminized) weedworld.co.uk(opens in new tab)
- 14 Serious Kush (Serious Seeds) feminized zamnesia.com(opens in new tab)
- 15 Serious Kush santyerbasi.com(opens in new tab)
- 16 Serious Kush (Serious Seeds) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 17 cannaconnection.com cannaconnection.com(opens in new tab)
17 verified sources
Aromas
Flavors
Terpene Profile
Myrcene leads · 2 terpenes mapped
Terpene Sources
- 1 Serious Kush by Serious Seeds: A Comprehensive Strain Guide - Blog - JointCommerce app.jointcommerce.com(opens in new tab)
- 2 Serious Kush - Buy Serious Seeds cannabis seeds dinafem.org(opens in new tab)
- 3 Kush Gets Serious hightimes.com(opens in new tab)
- 4 Serious Kush (Serious Seeds) feminized zamnesia.com(opens in new tab)
- 5 cannaconnection.com cannaconnection.com(opens in new tab)
5 verified sources
Terpene Distribution
Terpene profile: Myrcene 1.2%, Caryophyllene 0.8% .
Myrcene
Flavor: Earthy, musky, fruity
Caryophyllene
Flavor: Spicy, peppery, woody
Appearance
Deep forest green · Purple undertones
Color Palette
Texture
Dense, tightly-packed indica structure with exceptional resin production and heavy trichome coverage creating a crystalline, sugar-coated appearance
Crystal Density
very high
Exceptional crystal coverage
Chemistry & Research
Medical Effects
7 reported therapeutic uses on file
Medical Effect Sources
- 1 Serious Kush by Serious Seeds: A Comprehensive Strain Guide - Blog - JointCommerce app.jointcommerce.com(opens in new tab)
- 2 Serious Kush Female Cannabis Seeds by Serious Seeds puresativa.com(opens in new tab)
- 3 Feminized Serious Kush by Serious Seeds - Grow Barato growbarato.net(opens in new tab)
- 4 Serious Kush - Samsara Seeds - Root Catalog samsaraseeds.com(opens in new tab)
- 5 Serious Kush Strain ® Originally Bred by Serious Seeds seriousseeds.com(opens in new tab)
- 6 Serious Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 7 Serious Kush Weed Strain Information leafly.com(opens in new tab)
- 8 Serious Kush Seeds by Serious Seeds growdiaries.com(opens in new tab)
- 9 Serious Kush - Buy Serious Seeds cannabis seeds dinafem.org(opens in new tab)
- 10 Kush Gets Serious hightimes.com(opens in new tab)
- 11 Serious Kush - Cannabis Seeds from Serious Seeds deliciousseeds.com(opens in new tab)
- 12 Serious Kush | Serious Female Cannabis Seeds cannabis-seeds-bank.co.uk(opens in new tab)
- 13 Serious Seeds - Serious Kush (Feminized) weedworld.co.uk(opens in new tab)
- 14 Serious Kush (Serious Seeds) feminized zamnesia.com(opens in new tab)
- 15 Serious Kush santyerbasi.com(opens in new tab)
- 16 Serious Kush (Serious Seeds) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 17 Serious Kush Weed Strain Review & Info strains.uk(opens in new tab)
17 verified sources
Mental Effects
- •Stress Relief
Reduces stress and promotes mental relaxation
- •Anxiety Relief
Alleviates anxiety without causing heavy sedation
- •Depression Support
Elevates mood and helps manage depressive symptoms
Professor High visualization
Body Effects
- •Pain Management
Effective for chronic pain and muscle tension relief
- •Sleep Aid
Promotes deep sleep and treats insomnia effectively
- •Muscle Relaxation
Reduces muscle spasms and tension throughout body
- •Inflammation Reduction
Helps reduce inflammation and associated discomfort
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 Serious Kush?
Serious Kush is a indica cannabis strain containing up to 24.0% 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.
Cannabinoids (THC & CBD)
THC 18-24% · 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 · Concentrates
Recommended Methods
Side Effects
Dry Mouth · Dry Eyes · +2 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
White Russian × OG Kush · bred by Serious Seeds
Lineage Sources
- 1 Serious Kush by Serious Seeds: A Comprehensive Strain Guide - Blog - JointCommerce app.jointcommerce.com(opens in new tab)
- 2 Serious Kush Female Cannabis Seeds by Serious Seeds puresativa.com(opens in new tab)
- 3 Feminized Serious Kush by Serious Seeds - Grow Barato growbarato.net(opens in new tab)
- 4 Serious Kush - Samsara Seeds - Root Catalog samsaraseeds.com(opens in new tab)
- 5 Serious Kush Strain ® Originally Bred by Serious Seeds seriousseeds.com(opens in new tab)
- 6 Serious Kush Marijuana Strain Information & Reviews allbud.com(opens in new tab)
- 7 Serious Kush Weed Strain Information leafly.com(opens in new tab)
- 8 Serious Kush Seeds by Serious Seeds growdiaries.com(opens in new tab)
- 9 Serious Kush - Buy Serious Seeds cannabis seeds dinafem.org(opens in new tab)
- 10 Kush Gets Serious hightimes.com(opens in new tab)
- 11 Serious Kush - Cannabis Seeds from Serious Seeds deliciousseeds.com(opens in new tab)
- 12 Serious Kush | Serious Female Cannabis Seeds cannabis-seeds-bank.co.uk(opens in new tab)
- 13 Serious Seeds - Serious Kush (Feminized) weedworld.co.uk(opens in new tab)
- 14 Serious Kush (Serious Seeds) feminized zamnesia.com(opens in new tab)
- 15 Serious Kush santyerbasi.com(opens in new tab)
- 16 Serious Kush (Serious Seeds) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 17 Serious Kush Weed Strain Review & Info strains.uk(opens in new tab)
- 18 cannaconnection.com cannaconnection.com(opens in new tab)
18 verified sources
A predominantly indica strain bred by Serious Seeds, created by crossing White Russian and OG Kush genetics. Most sources indicate a mostly indica composition with some sativa influence.
Genetics
Origin Timeline
First cultivated in 2017
Breeder
Serious Seeds
Seed Bank
Serious Seeds
Awards & Recognition
2 awards & mentions
Award Sources
- 1 Serious Kush Female Cannabis Seeds by Serious Seeds puresativa.com(opens in new tab)
- 2 Serious Kush - Samsara Seeds - Root Catalog samsaraseeds.com(opens in new tab)
- 3 Serious Kush Strain ® Originally Bred by Serious Seeds seriousseeds.com(opens in new tab)
- 4 Serious Kush Seeds by Serious Seeds growdiaries.com(opens in new tab)
- 5 Serious Kush - Buy Serious Seeds cannabis seeds dinafem.org(opens in new tab)
- 6 Kush Gets Serious hightimes.com(opens in new tab)
- 7 Serious Kush - Cannabis Seeds from Serious Seeds deliciousseeds.com(opens in new tab)
- 8 Serious Kush | Serious Female Cannabis Seeds cannabis-seeds-bank.co.uk(opens in new tab)
- 9 Serious Kush (Serious Seeds) feminized zamnesia.com(opens in new tab)
- 10 Serious Kush (Serious Seeds) :: Cannabis Strain Info :: SeedFinder.eu seedfinder.eu(opens in new tab)
- 11 cannaconnection.com cannaconnection.com(opens in new tab)
11 verified sources
Competition Wins
3rd place in the category Indica/Grower
Indica/Grower
View Source (opens in new tab) ↗Publication Awards
The Full Story
Detailed Description
The long-form profile · ~5 min read
Introduction
Serious Kush stands as a testament to modern cannabis breeding excellence, combining two legendary genetics into a powerhouse indica-dominant strain that has earned recognition across Europe and beyond. Created by the renowned Amsterdam-based Serious Seeds in 2017, this strain brings together the cerebral intensity of White Russian with the classic kush profile of OG Kush, resulting in a deeply relaxing experience that has captured the attention of both medical patients and recreational users seeking profound physical relief.
🧬 Genetic Heritage & Lineage
Serious Kush represents a carefully crafted fusion of White Russian and OG Kush genetics, creating an 80-85% indica-dominant hybrid that delivers the best of both parent lineages. White Russian, itself a cross of AK-47 and White Widow, contributes exceptional resin production and euphoric mental effects, while OG Kush brings its legendary sedative properties and distinctive terpene profile. Bred by Serious Seeds - a company with decades of experience in creating award-winning genetics - this strain exemplifies the precision and expertise that Amsterdam's seed banks are renowned for. Originating in the 2000s and officially released in 2017, Serious Kush quickly established itself as a serious contender in the indica category, earning its place among the elite kush varieties available to cultivators and consumers worldwide.
👃 Terpene Profile & Aromatics
The aromatic profile of Serious Kush is dominated by myrcene at approximately 40% and caryophyllene at 25%, creating a complex sensory experience that immediately announces its indica heritage. The myrcene content delivers that characteristic earthy, musky foundation that defines many kush varieties, while also contributing to the strain's sedative properties through its synergistic effects with THC. Caryophyllene adds a spicy, peppery dimension while offering potential anti-inflammatory benefits through its unique ability to bind with CB2 receptors.
The aroma opens with deep earthy notes reminiscent of damp forest soil and aged wood, immediately followed by sweet pine resin that evokes memories of walking through evergreen forests. As you break apart the buds, pungent kush characteristics emerge alongside diesel fuel undertones and herbal spice, creating a multifaceted bouquet that's both traditional and distinctive. Subtle floral and sweet caramel notes weave through the profile, adding complexity and depth that keeps you coming back to explore its aromatic layers.
👅 Flavor Experience
The flavor journey of Serious Kush mirrors its aromatic complexity while adding new dimensions on the palate. The initial inhale brings robust earthy flavors mixed with sweet pine, coating the tongue with that classic kush profile enthusiasts seek. The mid-palate reveals spicy herbal notes punctuated by woody undertones and subtle citrus brightness that prevents the flavor from becoming one-dimensional. On the exhale, users experience a sweet caramel finish with lingering fuel notes and kushy depth that persists long after consumption.
🎯 Effects & Experience
With THC levels ranging from 18-24% and minimal CBD content (typically under 1%), Serious Kush delivers a potent, full-bodied experience that begins within 5-10 minutes of consumption. The onset brings an initial wave of euphoria and mental uplift - a gift from its White Russian heritage - creating a brief window of happiness and stress relief before the indica characteristics take center stage.
As the effects develop over 15-20 minutes, you'll notice a profound physical relaxation washing over the body, releasing tension from muscles and joints with remarkable efficiency. This deep body buzz intensifies into what many describe as a sedating, couch-locking experience that makes movement feel optional at best. The mental effects transition from initial euphoria to a calm, peaceful headspace that quiets racing thoughts and promotes introspection.
The peak effects last approximately 2-3 hours, during which users report feeling deeply relaxed, sleepy, and hungry - the classic indica trifecta. This strain is notorious for inducing powerful munchies, so having snacks prepared is advisable. The comedown is gentle, gradually transitioning into natural, restful sleep, making this an ideal end-of-day strain.
🎮 Use Cases & Activities
Serious Kush excels in scenarios requiring deep physical relaxation and mental decompression. This is the strain you reach for when the day is done and you need to unwind completely. Perfect for:
- Evening relaxation on the couch with movies or music
- Pain relief sessions requiring sustained physical comfort
- Sleep preparation approximately 1-2 hours before bedtime
- Stress relief after demanding workdays
- Appetite stimulation for those struggling with eating difficulties
- Meditation and gentle stretching practices
💚 Medical & Therapeutic Potential
Serious Kush has garnered significant attention in medical cannabis circles for its potential to address multiple conditions. The high myrcene content may help with insomnia and sleep disorders, while caryophyllene offers potential anti-inflammatory benefits. Medical users report this strain may help manage:
- Chronic pain conditions including arthritis, fibromyalgia, and back pain
- Insomnia and sleep disorders through its sedative properties
- Muscle spasms and tension via profound physical relaxation
- Stress and anxiety through calming mental effects
- Appetite loss by stimulating hunger
- PTSD and depression symptoms through mood elevation and mental quieting
Medical disclaimer: These statements have not been evaluated by medical authorities. Cannabis should not replace professional medical advice or treatment.
👁️ Visual Characteristics
Serious Kush produces dense, tightly-packed buds with a classic indica structure. The flowers display deep forest green primary coloration with purple undertones becoming more prominent in cooler growing conditions. Fiery orange to rust-colored pistils weave throughout the bud structure, creating striking visual contrast. The flowers are heavily frosted with trichomes, giving them a crystalline, sugar-coated appearance that speaks to their potency. The resin production is exceptional, making this strain popular for concentrate extraction.
🏆 Awards & Recognition
Serious Kush has earned legitimate recognition in the competitive cannabis world:
- 3rd Place Indica/Grower - IC420 Cup 2016 (Amsterdam)
- European Plant of the Year - Soft Secrets Magazine 2018
These accolades validate the strain's quality and appeal to both growers and consumers, cementing its reputation as a world-class indica variety.
📜 Cultural Context & Consumer Considerations
Serious Kush represents the modern evolution of kush genetics, bringing together old-school indica effects with contemporary breeding precision. It's widely available through Serious Seeds and has become a staple in European dispensaries and seed catalogs. The strain appeals particularly to indica enthusiasts seeking authentic kush experiences and medical patients requiring strong physical effects.
Recommended for: Experienced consumers comfortable with strong sedative effects, medical patients seeking pain/sleep relief, evening/nighttime use exclusively.
Approach with caution if: You're sensitive to sedation, need to remain functional, are new to cannabis, or prone to couch-lock. This is a serious indica that demands respect for its potency.
Research Methodology
How we compiled this strain profile
This strain profile was compiled from 18 published sources covering 'Serious Kush'. 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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