Find out which cannabis strains have the highest THC content, how they grow, and where to buy the 15 highest THC seeds online. It's a fact that weed is getting stronger, but these cannabis strains will blow your mind. We bring you the best and strongest marijuana strains of the year. Our High THC Seed collection is reserved only for those feminised seeds and autoflower seeds which produce the strongest cannabis. Expect over 20% THC.
The Highest THC Seeds
An in-depth review of the 15 highest THC seeds available. Discover a world filled with bone-crushing indicas and psychedelic sativas and find high THC seeds for sale.
When you want weed that will knock you off your feet, there’s no better choice than high THC seeds.
Cultivators worldwide prioritize high THC seeds because most cannabis enthusiasts seek the most potent strains available. Whether for medical or recreational purposes, the concentration of THC is paramount.
Many medical marijuana patients seek weed that contains upwards of 30% THC to nip discomfort in the bud. Alternatively, recreational marijuana enthusiasts seek cannabis that exceeds the 35% THC mark to explore the mind’s boundaries. Regardless of your reason, choosing a strain with high THC is almost always an excellent choice.
High THC seeds, however, are not easy to come by. The vast majority of the highest THC strains are not for sale because they are closely guarded. Due to their rarity, high THC strains typically form the backbone of a cannabis seed company’s catalog.
Furthermore, the highest THC strains are kept as an ace-in-the-hole during cannabis competitions, such as High Times or Spannabis. Overall, you’ll be hard-pressed to coerce a breeder to give up a legendary cutting of a high THC strain.
Luckily for you, a handful of coveted high THC seeds are available — if you know where to look. Read along to discover the criterion to select the highest THC seeds for your needs.
How to Choose The Highest THC Seeds
As a cultivator, you must search for a cannabis strain that ticks all the boxes — not just THC potential. What use is a high THC strain if it tastes terrible, or worse, yields a handful of grams?
Overall, the point is to find the highest THC strains that’ll put you down-for-the-count while being enjoyable to grow and experience.
Now, let’s take a look at the different aspects that you must consider before you buy high THC seeds.
If you want high THC seeds, this is the first aspect that you need to look at.
Sure, 25% THC is potent, but why not find seeds that contain 35% THC? Once again, it’s all about you. Therefore, only you can decide if a 20-30% THC strain is right for your needs.
Are you searching for an indica, sativa, or hybrid?
The type of cannabis strain makes a massive difference, so you must choose accordingly. The last thing you want is to grow a psychedelic sativa only to realize you suffer from anxiety.
Overall, you must look at the effects of a high THC strain and determine if it produces results that you will enjoy.
The grow difficulty of a strain is a vital aspect to consider.
If the high THC seeds that you purchase are challenging to grow, your overall experience will suffer — let alone the final yield. In other words, you must choose high THC seeds that match your skill level.
Terpenes make the world-go-round.
Nobody enjoys bland weed that doesn’t smell or taste like anything. Therefore, you must choose high THC seeds that contain a unique terpene profile.
Uniqueness and Personal Preference
Whether it’s for bragging rights or because it’s a personal choice — there’s nothing like growing high THC seeds that no one else has.
You must understand what you want in a cannabis seed with high THC potential.
Value for Money and Effort
Ultimately, you must decide if the high THC seeds in your shopping cart are worth your money, time, and effort.
The 15 Highest THC Seeds
Everyone is different.
In our years in the cannabis industry, we’ve seen it all, from cannabis veterans with iron-lungs pass out after a one-hit-quit to beginners burning down entire joints without feeling anything. The point is — every person reacts differently to THC.
With our experience in mind, we’ve curated a list of the 15 highest THC seeds that’ll make your mind soar through the clouds or blackout on-the-spot.
From blackouts, couch-locks, and tripped-out effects — our list of the 15 highest THC seeds is a must-read.
#15 Fruity Pebbles
Fruity Pebbles is a mouth-watering treat that packs a flurry of punches that will leave you utterly dazed.
On average, Fruity Pebbles seeds contain 18-22% THC. However, specific phenotypes may carry upwards of 24% THC. Therefore, one of your random Fruity Pebbles seeds may have a high THC trait that shouldn’t be missed.
Furthermore, Fruity Pebbles stays true to its name. Fruity Pebbles’ indica-dominant buds are decked-out in palate-pleasing terpenes that’ll make you come back over and over again.
From a cultivation standpoint, Fruity Pebbles offers growers massive yields, fast flowering times, and, ultimately, a comfortable growing experience.
If you’re ready to fill your bowl with potent Fruity Pebbles weed, look no further than these high THC seeds.
Although AK-47 weed isn’t as menacing as the actual object it’s named after — it’ll blow your mind away. If you’re on the hunt for a sativa-dominant strain that boasts cerebral effects, these high THC seeds are it.
AK-47 isn’t only renowned for its heavy-duty potency and how easy it is to grow. Whether you’re a beginner or a professional that grows indoors or outdoors, AK-47 seeds never fail to get the job done.
Once you finish harvesting AK-47’s trichome-rich flowers, prepare yourself for a mouthful of honey, white pepper, cardamom, and pine sap. As the flavors escape your mouth, an urge to dance, jump, and howl-at-the-moon will overtake you.
If you need the highest THC strain to get the party started, look no further than AK-47 seeds.
Are you looking for high THC seeds that offer copious resin coverage, record-breaking yields, and long-lasting effects?
Meet Chemdawg (or Chemdog) — the California hybrid that’s coveted by indoor and outdoor growers worldwide.
After years of experience with Chemdawg, we can say without a doubt that this strain is a genuine crowd-pleaser. Cheshire cat grins to body-numbing relaxation, Chemdawg is a versatile strain that packs a THC department punch.
Beginners beware — Chemdawg buds are loaded to the brim with THC potential. If you overindulge, you might find your mind floating into the sky while your body gets buried in the ground. However, if you’re after a cannabis strain that offers a cash-crop potential while maintaining an exceptionally high level of THC — Chemdawg seeds are a must-buy.
Up to 25%
Medium to Difficult
Euphoric, Energetic, Creative
#12 Nitro Lemon Haze
Nitro Lemon Haze is a high-octane sativa-dominant hybrid that you need if you’re into potent cerebral effects with a relaxing twist.
Sativa-loving cultivators enjoy Nitro Lemon Haze for its robust yield. Furthermore, Nitro Lemon Haze flowers as fast as most indicas. At 9-weeks, you’ll find yourself bathing in the emerald green buds that Nitro Lemon Haze provides.
If you enjoy deep citrus flavors with a skunky finish, Nitro Lemon Haze weed will win you over from the first puff. From clear-headed creativity to a lasting body-buzz, the Nitro Lemon Haze strain is the perfect option for cultivators searching for high THC seeds with a sativa-kick.
#11 Durban Poison
Durban Poison is for the sativa-heads that want to take a trip. Luckily for you, you won’t need to pack any bags when you jump on the Durban Poison express.
Durban Poison is an heirloom sativa strain, and it’s filled with psychoactive THC as you’ve never experienced before. With a maximum THC content of 26%, extreme caution is advised when indulging in this hard-hitting landrace. However, the average THC content of Durban Poison is between 19-22%.
Durban Poison checks all the boxes, from the ease of growth to a significant yield. Furthermore, Durban Poison tastes delicious and smells of sweet-spice-and-everything-nice.
Allow Durban Poison weed to electrify your mind with energy, creativity, and enough laughter to hurt your sides. Ultimately, Durban Poison is a legendary strain that offers a unique blend of sky-high THC content and enjoyable effects.
Medium to Difficult
Uplifted, Creative, Euphoric
#10 Neville’s Haze
There are two things you need to know about Neville’s Haze.
First, Neville’s Haze is one of the world’s strongest weed strains that you can find in seed form. Second, Neville’s Haze deserves a warning sign to warn of its extreme potency.
If you’re the adventurous type that smokes first and asks questions later — Neville’s haze is right up your alley. Being one of the highest THC strains, Neville’s Haze enjoys a reputation that few cannabis varieties experience.
Although Neville’s Haze isn’t easy to grow, it provides cultivators with massive yields, mind-crushing potency, and a terpene profile dipped in haze. Remember, Neville’s Haze seeds grow tall and take upwards of 14-weeks to flower. Neville’s Haze is just right for you if you don’t mind a commitment.
Be warned — Neville’s Haze takes no prisoners. Once you exhale, prepare for a mental rollercoaster that doesn’t seem to quit.
Medium to Difficult
Euphoric, Energetic, Creative
#9 Banana Kush
Bananas and Kush — what’s not to like?
Banana Kush is, by far, one of the strongest medical strains available. If you’re a medical marijuana patient that needs to reduce pain, insomnia, and stress — Banana Kush seeds are all you need.
Furthermore, Banana Kush is an easy strain to grow. Cultivating Banana Kush plants is straightforward; however, it does grow slowly. As long as you can provide Banana Kush with 3-weeks of vegetative growth, you will be rewarded by robust plants that can hold the hefty flowers.
The terpene profile of Banana Kush is, you guessed it — filled with ripe banana, spice, hashish, and sweet floral undertones. The effects of Banana Kush are characterized by uplifting creativity, body-numbing relaxation, and pure bliss.
However, don’t underestimate Banana Kush. At 27% THC, Banana Kush is ranked as one of the highest THC strains.
Up to 27%
Euphoric, Relaxed, Uplifted
Pioneered by none other than Cookie Fam, the Gelato stain is as high-end as cannabis gets.
Anytime we’ve cultivated the Gelato strain, we’re always impressed by the avalanche of resin. From industry professionals to hobby gardeners, Gelato weed never fails to impress. In other words, if you’re after high THC seeds that produce photogenic buds — look no further than Gelato seeds.
You would think that a strain this impressive would be nearly impossible to grow. However, Gelato is one of the most straightforward strains to grow and is perfect for beginners and pros alike.
Indoors or outdoors, Gelato is loaded with dessert-like terpenes that will make you drool. As far as effects, Gelat’s sky-high THC content will melt your mind and body into a puddle of bliss.
#7 Wedding Cake
If you’re ready to tie the knot with one of the highest THC strains, look no further than Wedding Cake.
Wedding Cake has all the right ingredients — upwards of 25% THC, decadent terpenes, and incredible effects. Furthermore, anyone can grow Wedding Cake seeds. Whether you’re a commercial cultivator or a home gardener, Wedding Cake produces picture-perfect buds in no time.
Wedding Cake excels in both indoor and outdoor environments. However, Wedding Cake’s bag appeal produces fireworks when cultivated indoors. Luckily, Wedding Cake plants grow short, which makes it perfect for the SOG or ScrOG technique.
Wedding Cake’s flowers drip with resin as if they were dipped in confectioners sugar. Although Wedding Cake is a delicious strain, we’ll be surprised if you can remember your name after a second hit.
Uplifted, Creative, Relaxed
#6 Girl Scout Cookies
Girl Scout Cookies is the ultimate never judge a book by its cover strain.
Although the name sounds friendly, Girl Scout Cookies will lay you out after a single hit. If you’ve never experienced GSC’s potent embrace, prepare yourself for intense relaxation and a mindful buzz that’ll keep you coming back for more.
Girl Scout Cookies is one of the highest THC strains, so if you’re after strong cannabis seeds, this is it. With an average concentration of 22% THC, Girl Scout Cookies surprises even the most seasoned tokers. For instance, if it’s too strong for Wiz Khalifa, then you can bet GSC is one of the strongest indica strains in town.
From a cultivation standpoint, Girl Scout Cookies is a moderately difficult strain to grow. However, it performs great in both indoor and outdoor environments. Furthermore, GSC’s yield is exceptional for such a connoisseur-grade strain.
If you’re ready to experience some of the strongest weed around, it’s time to find these high THC seeds for sale.
Sleepy, Relaxed, Uplifted
#5 Gorilla Glue #4
Gorilla Glue is the ultimate mind scrambler.
Gorilla Glue is considered as one of the highest THC strains at over 25% THC. If you’ve been wondering what is considered a high THC strain — Gorilla Glue #4 is it.
The effects of Gorilla Glue #4 are incredibly disorienting, energetic, and full of euphoria. Gorilla Glue #4 is one of those strains that you can’t accomplish much — except decimate a pizza or play video games for hours on end.
Furthermore, Gorilla Glue #4 can numb the body instantly, making it one of the strongest medical strains around. Whether you’re searching for high THC seeds for recreational or medical purposes, Gorilla Glue fits the bill.
#4 THC Bomb
Not only will THC Bomb’s delicious terpene profile detonate your taste buds, but the sheer potency will blow your hair back.
THC Bomb ranks high in our highest THC strains list because it offers well over 22% THC. Furthermore, its massive yield potential means you’ll have enough potent weed for the long months ahead. Whether you’re a commercial cultivator or hobby gardener, there’s nothing like having a stash of ultra-strong weed at the ready.
THC Bomb is incredibly vigorous, so sit back, relax, and watch THC Bomb explode with growth. Once you harvest THC Bomb’s resin-filled flowers after 10-weeks, prepare yourself for its bunker-busting effects.
The initial blast is filled with profound euphoria, followed by aftershocks of blissful relaxation. When you’re on the hunt for high THC seeds, look no further than THC Bomb.
#3 Sunset Sherbet
Sunset Sherbet is so strong that you’ll be speaking French in no-time.
Commonly known as Sunset Sherbert, Sunset Sherbet is hailed as one of the best cannabis strains of all time. One of Sunset Sherbet’s notable traits is its ultra-high THC content. At 25% THC and above, Sunset Sherbet is some of the most potent marijuana you’ll ever experience.
Furthermore, Sunset Sherbet’s buds are gorgeous and decked from top to bottom with resin. However, Sunset Sherbet’s beauty and terpene profile are deceptive. As you fall into a trance with Sunset Sherbet’s buds, you may take one hit too many.
Remember, Sunset Sherbet is one-hit-quit weed, so you must start slow.
Aside from Sunset Sherbet’s outrageously relaxing nature, it’s easy to grow. We can’t stress it enough — Sunset Sherbet wins on all fronts, from yield potential to flavor.
Sunset Sherbet’s ultra-high THC seeds sell out quickly, so if you find these high THC seeds for sale, don’t sleep on them.
#2 Godfather OG
If you want to get beyond stoned, there’s an indica-dominant hybrid that will make you an offer you can’t refuse.
Meet Godfather OG – the Don of all OGs that’s awash in mind-blowing levels of psychoactive THC. If you want dense, golf-ball like nugs that will make you sleep with the fishes, there’s no other choice than to find these high THC seeds for sale.
Of all the great traits that Godfather OG possesses, many cultivators enjoy how easy it is to grow Godfather OG plants. Whether you’re a beginner or a green-thumb, you now have access to one of the strongest indica strains on this planet.
As a cherry-on-top, Godfather OG presents crystal-coated flowers that smell and taste divine. As your lungs exhale the thick smoke from Godfather OG, you’ll enter a realm filled with happiness and relaxation.
With upwards of 28% THC, there’s no reason not to join the Godfather OG family.
#1 Bruce Banner #3
When you want the strongest weed possible, look no further than Bruce Banner #3.
Bruce Banner #3 is known to test as high as 30% THC, with an average of 25% THC. Bruce Banner has won countless awards, primarily in the strongest sativa strain category. If your primary goal is to find high THC seeds — you’re in luck if you can find Bruce Banner’s high THC seeds for sale.
However, Bruce Banner #3 is not one-sided.
Bruce Banner #3 offers more than just sheer potency, as it provides a mouthful of delicious terpenes and outstanding bag appeal. Furthermore, Bruce Banner #3 produces a Hulk-like harvest — indoors or outdoors.
The effects of Bruce Banner will knock your mind out of the ballpark. The initial rush of euphoria and energy will make you think twice about underestimating weed ever again. As your mind hits Mach 3, the body eases into an unparalleled relaxed state. Overall, Bruce Banner #3’s mixed effects are crazy-potent and should be left to brave cannabis enthusiasts.
Energetic, Creative, Focused
Feminized, Autoflower, Regular
With 15 of the highest THC strains at your fingertips, which are right for you?
As you can see, each of these high THC seeds is filled with unique traits, from bag appeal to yield potential. Depending on your preference, one or more of these high THC seeds will happily grow in your garden.
Remember, each of these high THC seeds contains a ridiculous amount of psychoactive THC, so always start slow. When indulging in some of the highest THC strains, the mantra of less is more is incredibly relevant.
If you have come this far, you are probably still looking for your favorite seeds…
Fortunately, we have reviewed dozens of other varieties of cannabis seeds of different types that can significantly suit your needs!
5 Top and Strongest Marijuana Strains of 2022
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If you believe the annual reports from the National Institute on Drug Abuse, weed is getting stronger. Certainly, if you measure potency by THC content, marijuana is unquestionably becoming more potent. It was even noticeable when the average THC content of weed in 2003 was 6.4%, compared to just 0.72% in 1976.
One of the main reasons for this extra potency is the focus on producing sinsemilla, which is the tops of unfertilized female plants (these happen to contain the highest amount of THC). In the modern era, harvesters remove the trimmings and get rid of water leaves, which contain little to no THC.
It is also likely true that cannabis strain production has contributed to the greater strength of pot; growers prefer marijuana strains with high cannabinoid levels, and today, the strongest selections are hybrid crosses of well-known strains.
DID YOU KNOW: THC levels averaged an estimated 6.4% in 2003, while in 2018 most estimations were above 15%?
Moreover, we are uncovering stronger combinations on an almost daily basis. Back in the halcyon days of the 1960s and 1970s, finding weed with a THC content of over 10% was a rarity. Today, a significant number of strains have well over 20% THC.
If you are seeking a serious high, all of the above is fantastic news. The question is: What are the world’s strongest marijuana strains? Keep reading to discover our 5 top picks.
5 Best and Strongest Marijuana Strains of the Year
Realistically speaking, the following strains are not necessarily “new” strains for this year. Rather, several of them are OG classics that have simply “evolved” with the times to contain more and more THC over the decades.
More accurately, they have been “selectively bred” over multiple generations of numerous breeders to contain only the female genetics which produce buds with the highest THC content. So, how does “selecting” for a strain with high THC content work, you might be wondering?
Well, after harvesting a crop you can “test” each individual plant specimen for its: A) flower (bud) production and B) THC content. This testing can be done in an actual HPLC laboratory where they chemically examine the THC levels, or (more commonly), can be done by smoking a sample of each plant’s flowers and seeing which one gets you higher.
When you find a plant with specific genetics that you like, simply clone that one over a new generation and voila – you’ve selectively bred cannabis for high THC content.
Anyway, without further ado here are our picks for five of the strongest and highest-potency cannabis strains for the year. There are a lot of high-THC strains out there in this day and age, but these are our personal favorites.
1 – Godfather OG (The World’s Strongest Marijuana Strain?)
According to High Times, Godfather OG is the most potent marijuana strain on the planet. This indica dominant hybrid is reported to have a THC content of over 34%! Since it is an activated THC value, there is a good chance that the figure is conservative.
Godfather OG is cultivated by California Herbal Remedies (CHR) and is believed to be a cross of Cherry Pie, OG Kush, and Granddaddy Purps. With this information in hand, it is no surprise that Godfather OG is often referred to as the ‘Don of all Kush’ strains. Even a typical strain should have a THC of over 25%.
Of course, strength means nothing without quality — and Godfather OG has absolutely no shortage of quality.
This strain has won the High Times Cannabis Cup for best indica strain in the past, and when you smoke the bud, it will hit you with an incredible cerebral high that soon results in a whole-body euphoria. Users tend to feel calm and happy, with the euphoric effects oozing over both mind and body. Godfather OG provides you with a feeling of total relaxation, and could ever render you immobile or couch-locked for the afternoon, such is its potency.
2 – Chemdawg (The Pungent Marijuana Strain)
Chemdawg previously held the record for highest THC content when it won the coveted Cannabis Cup title with a THC level of 32.13%. Cultivated by Next Harvest in Denver CO, it is one of the most mysterious marijuana strains. People know little about its genetics or history. However, rumor has it that Chemdawg is a cross of a Thai and Nepalese sativa.
Whatever its ancestral lineage, it should go without saying that Chemdawg is not for the newbie. It is an indica dominant hybrid (55%) renowned for its pungent scent. This aroma carries more than a hint of diesel. In fact, this strain is used to create Sour Diesel — another one of the world’s most popular (and potent) marijuana strains.
When you smoke Chemdawg, it will provide you with a wonderful cerebral high that is incredibly enjoyable — that is, once you know how to handle it!
The nugs have a powerful relaxing effect that is ideal for calming down a mind that tends to race. And furthermore, if you are stressed at work and need something to help you chill out, research shows that strains like Chemdawg are perfect because of their uplifting effects.
Moreover, it is also a strain conducive to creativity and has been a preferred favorite among artistic types for many, many years in California and the West Coast in general.
Want to learn more about the Chemdawg Strain? Check out this comprehensive Chemdawg review. We’ve also explained how it can help you!
3 – Irish Cream (This Marijuana Strain is the Real McCoy)
This is yet another case of “selectively breeding” to yield an exceptionally powerful marijuana strain. Mighty Irish Seeds developed Irish Cream. It is an indica and a crossbreed of Real McCoy and Cookies and Cream. The result is a strain that the company claims clocks in with an average THC content over 27%.
If you smoke this strain with the belief that it will taste like Bailey’s, though, you’re in for a disappointment as it offers classic, dank weed flavors instead. You will find that this bud offers the taste of fresh herbs and pine, and while it doesn’t taste quite like the Sweet Cream strain, it is nonetheless a pleasant experience.
Irish Cream is an extremely potent strain which means it could help with the relief of anxiety, depression, stress, and even chronic pain. The initial high is mostly cerebral, but soon you’ll feel happy, relaxed, and sociable all at once. Eventually, your body starts to feel the effects and you’ll begin to feel sedated and ready to hit the sack for a deep, naturally healthy night’s sleep. This is what we like to call a “carefree” strain, due to the fact that it is ideal for evening and night time use.
4 – White Tahoe Cookies (This Marijuana Strain is the New Kid on the Block)
This exciting new strain was initially grown by Kush4Breakfast and is a cross of The White, Girl Scout Cookies, and Tahoe OG, so the name of the hybrid became obvious to the creator. White Tahoe Cookies has become extremely popular on the West Coast, according to its breeders, and its THC content clocks in at over 27% — making it one of the world’s strongest as a whole.
This is an indica-dominant strain (roughly 70%) and is one of the most aesthetically-pleasing marijuana strains around. Archive Seed Bank is the distributor of White Tahoe Cookies. It is certainly worth trying if only so you can enjoy the sweet, flavorful notes with obvious OG undertones.
In terms of effects, it may shock you how quickly White Tahoe Cookies starts to hit the senses. Within minutes, you should feel euphoric, and your mind should become filled with great ideas because this strain is fantastic for creativity.
In fact, all it needs is a single toke to understand that you’re dealing with a potent monster of a strain.
Ultimately, you will feel a relaxing body buzz that turns into a feeling of sedation. The high sometimes lasts for hours. For this reason, make sure you’re safely wrapped up in bed. (And of course, this particular effect makes it one of our absolute favorites for insomnia and other sleep issues!)
5 – Strawberry Banana (The Marijuana Strain That Tastes Like Dessert)
This indica dominant hybrid (70%) is a cross of Crocket’s Banana Kush and Strawberry Bubblegum, and was developed by those crazy creative geniuses at Serious Seeds. It is a mainstay on the High Times ‘Strongest Strains on Earth’ list, selected three years in a row. On at least one phenotype of the strain (a specimen grown by Greenwolf LA & Green Country Rebellion), average THC levels of 31.62% were detected by the growers.
In all honesty, however, the average THC level of this strain is probably closer to 26-28%. This still makes it one of the most reliably potent marijuana strains in the world. Strawberry Banana, known for its incredible taste, is akin to, erm, strawberries and bananas. The taste is accompanied by an amazingly sweet and fruity scent, as well as a delicious banana exhale.
Don’t let the “tropical” name of Strawberry Banana fool you; with max THC levels pushing 32%, it is an expert-only bud that packs a serious punch.
Strawberry Banana begins with a cerebral head high, and ensures you feel relaxed and focused throughout the entirety of the experience. Eventually, you will feel sedated and possibly even couch-locked. This is a fantastic strain to handle chronic pain, and according to certain studies, strains like Strawberry Banana are also suitable for users suffering from depression, PTSD, and insomnia.
Final Thoughts: The World’s Strongest & Best Marijuana Strains for the Year
Whatever strain you decide to try, remember that the terms ‘strong’ and ‘potent’ don’t always have to mean ‘high-quality.’ We have worked hard to find (what we expect to be) the world’s most powerful marijuana strains of the year. These strains lead the way today in terms of a kick-ass high. Plus these strains can lead to a memorable and enjoyable experience for many years to come.
Naturally, you can expect this list to change regularly year-by-year. Growers find new and improved ways to boost marijuana potency frequently. Realistically, how long will it be before a strain appears that produces buds with 40% THC? Will this be the year? We can’t wait to find out!
If you are looking for some of the highest THC strains on the market. Ones that will blow your mind, then you MUST check out these 5 High THC Strains.
High THC Seeds
For some growers, High THC seeds are the only ones worth growing! High THC cannabis seeds can be either feminised seeds or autoflowering seeds. High THC seeds use the best, most consistent cannabis genetics to produce the most potent cannabis buds available. We regularly submit our high THC strains to independent labs to check THC levels in the buds. The highest THC results require optimised grow room conditions. Note that your own results will depend on a range of factors including plant phenotype, grower experience and nutrient/lighting/environmental conditions. If you want the strongest possible cannabis try growing some of our High THC seeds.
Mad Scientist X Voodoo
Auto Skywalker Haze®
Skywalker Haze x Auto Amsterdam Amnesia
Auto Cinderella Jack®
(Cinderella 99 X Jack Herer) X Magnum
Auto Lemon Kix®
Las Vegas Lemon Skunk Autoflower
Sugar Bomb Punch®
THC Bomb X (Critical Orange Punch x Bubba Island Kush)
WiFi OG X Glueberry OG
Auto Orange Bud®
Orange Bud X Auto Daiquiri Lime
Wedding Cake X Animal Cookies
Gelato X Sherbet
Auto Mokum’s Tulip®
Mokum’s Tulip x Auto Colorado Cookies
Auto Kerosene Krash®
Kerosene Krash x (Kerosene Krash x Auto Glueberry O.G.)
Gorilla Glue #4 X Sherbet
Bubba Island Kush®
pre ‘98 Bubba Kush X (Grandaddy Purple x OG Kush)
Orange Hill Special®
Orange Bud X Californian Orange
Skunk#1 X Afghani
What are High-THC cannabis seeds?
Most cannabis growers want to buy THC rich seeds in order to produce the most potent crop possible. THC rich seeds are defined as those that can produce around (or above) 20% THC in the dried cannabis buds.
The strongest THC seeds produce buds with a long lasting and extremely powerful psychoactive high. They are perfect for the grower that places the highest value on the quality and strength of their harvests.
The most reliable, highest THC seeds are the result of very careful breeding using the finest cannabis genetics. Because the seeds are feminised, you should get over 95% female plants from high THC seeds whether they are autoflower or photoperiod genetics. With high THC regular seeds, you will get roughly equal numbers of male and female offspring.
Buy High-THC cannabis seeds online
If you’re looking to buy high THC cannabis seeds then you should take a close look at the Dutch Passion seed collection. Dutch Passion was the first cannabis seed company to create feminised seeds back in the 1990’s. Today, Dutch Passion’s high THC seeds are better than ever. You can expect an easy grow experience across a wide range of grow methods. All the high THC seeds are specially bred and selected for ease of growth.
You can also expect heavy yields from these high performance modern genetics. Since the invention of feminised seeds, Dutch Passion have continued to improve performance and results. Dutch Passion’s mission is to provide the best performing cannabis seeds to professional growers and home growers.
This is done by sourcing the finest cannabis genetics from the unrivalled Dutch Passion network of breeders and genetic specialists around the world. When you buy your next high THC seeds buy them from Dutch Passion, the original creators feminised cannabis seeds. As well as buying the best cannabis genetics you can count on great support from the highly experienced team in the unlikely event of any issues. You can also choose next day delivery whether you are buying feminised seeds, autoflower seeds or regular seeds.
Highest THC feminised seeds recommendations
Below we list our highest THC seed recommendations. All these high THC cannabis seeds are easy to grow and deliver heavy harvests. You will find the highest THC seeds of feminised, autoflower and regular strains. You can expect consistent, reliable results. Many of these high THC seeds for sale have been in the Dutch Passion collection for several years with thousands of repeat growers.
Sugar Bomb Punch
High THC feminised seeds don’t get much more powerful than Sugar Bomb Punch. Lab results have shown THC levels of over 23%. These indica dominant genetics use the best USA special genetics to deliver that perfect combination of XL yields with very high THC levels.
C-Vibez is a hybrid cannabis strain combining indica and sativa genetics in a beautifully balanced package. These are seriously high THC cannabis seeds, THC levels of over 23% have been recorded. Bloom time is around 10-12 weeks. Expect some of the stickiest and most potent buds you have ever grown!
With elite genetics from Wedding Cake x Animal Cookies, Meringue is a hybrid strain with extremely high THC levels. THC levels of over 20% have been recorded making this a high THC cannabis seed for the uncompromising grower seeking unique hybrid USA genetics with an amazing sweet aroma and fantastically resinous white buds.
HiFi 4G is a hybrid cannabis strain combining indica and sativa genetics in a beautifully balanced package. These are seriously high THC cannabis seeds with long lasting, highly pleasurable effects. Bloom time is a rapid 8 weeks or so, making this both a quick strain to grow as well as one with extremely high THC levels of 20-25%. Expect some of the stickiest and most potent buds you have ever grown!
Highest THC autoflower seeds recommendations
Autoflower seeds are perhaps the easiest and quickest way to grow cannabis. These high THC autoflower seeds grow from seed to harvest indoors under 20 hours of daily light in around 11 weeks. They can also grow well outdoors taking around 100 days from seed to harvest.
Auto Cinderella Jack
Auto Cinderella Jack is perhaps the worlds strongest autoflower strain. These high THC autoflower seeds have produced buds with over 25% THC. This is a hybrid strain, with indica and sativa genetics. She is very easy to grow in any grow medium/system. If you are looking for the most potent high THC auto seeds they don’t come any stronger than this!
Auto Orange Bud
With a delicious sweet citrus taste and particularly heavy yields, Auto Orange Bud is a High THC autoflower seed with a difference. THC levels are around 20% and this auto is very easy to grow. First time growers have achieved superb results. Genetics come from the multiple prize winning original Orange Bud. Perfect for those that love buds with superb visual and aromatic bag appeal!
Auto Lemon Kix
Auto Lemon Kix uses USA special genetics to deliver a delicious combination of heavy yields with sky-high THC levels of around (and perhaps above) 20%. The candy taste is quite unique, sweet and fruity. The aroma is like dipping your nose into a jar of fruity candy sweets. This strain is perfect for those that enjoy high THC strains with a a genuinely wonderful caste and aroma.
Highest THC regular seeds recommendations
High THC regular seeds produce roughly equal numbers of male and female offspring. These are often preferred by old school growers and breeders who don’t mind the presence of male plants.
Looking for high THC landrace cannabis seeds? With THC levels around 20% you can be assured of a premium strength vape/smoke from Mazar. These original cannabis cup winning Afghani genetics have been in the Dutch Passion collection for many years and deliver a powerful high and a strong body effects, making them a popular choice with medical marijuana growers. Mazar high THC seeds also deliver heavy harvests and an extremely penetrating aroma.
Euforia is a top quality sativa dominant skunk with a joyful, stress-busting anti anxiety high. Skunk seeds have a reputation for being particularly easy to grow and Euforia is no exception. These high THC seeds produce buds that have a thick crust of resin and a powerful skunky aroma. Perfect for the grower seeking to combine ease of growth with a unique ‘up’ high.
Looking for high yield outdoor THC cannabis regular seeds? Passion #1 is a Californian Indica with high THC levels and is bred for outdoor cultivation, often ready to harvest around early October. She can reach 3-4m tall and yield very heavily in good conditions.
Do cannabis seeds contain THC?
Is there THC in seeds? Cannabis seeds don’t contain THC. That’s one of the reasons they are legal in so many countries. However, they do contain all the necessary genetics to grow a plant which will produce lots of THC rich buds.
Key factors that influence THC-levels in cannabis plants
Starting with proven, high THC cannabis seeds is the best foundation to grow a crop of potent buds. But high THC seeds are only part of the story. The grower also needs to understand the finer points of cannabis cultivation in order to provide fully optimised conditions. This knowledge can be learned through experience or through online education. There are several aspects of cannabis growing which all need to be combined in order for the high THC cannabis seeds to reach their full potential. The main factors that influence THC levels in cannabis plants are listed below.
Grow room environment
A stable optimised grow room environment is key for an optimised plant growth. Temperatures should be stable. Extreme high/low temperature variations stress the plant and slow down development. Humidity needs to be controlled. This is particularly important towards the end of the grow when low humidity levels need to be maintained to prevent bud rot.
Indoor cannabis plants need lighting that delivers the right wavelengths at optimised intensities. LED lighting is generally regarded as the highest quality lighting option. HPS is the cheapest grow light option but the spectrum isn’t as optimised for cannabis plants as LED.
UVB supplemental light
UVB light is naturally present in sunlight but not usually in indoor grow lights. Supplementing an indoor grow light with UVB can add an extra few percentage points of THC to the buds. Without UVB a strain may produce THC levels of around 20%. With UVB fluorescent light added to the grow room, THC levels of up to 25% may be possible. Most professional legal growers use UVB to maximise THC levels.
One of the most difficult topics for beginners to master is nutrient management and control. One of the most common errors, especially from less experienced growers, is the tendency to over water and over feed their plants. In the worst cases this can permanently stunt plant growth and prevent plants from achieving the THC potential.
Pests and disease control
Keeping a clean, pest/disease grow room is key when trying to produce the highest THC levels in your crop. Pests and disease stress your cannabis plant, reducing growth and final harvest quality.
Cannabis seeds quality
Even the world’s best cannabis growers won’t get high THC results from low THC seeds. Choose the best quality high THC seeds you can get from a supplier with a long standing reputation for quality and you have the best starting point for your grow.