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High THC Seeds
The “Best of the Best” when it comes to THCa content! Strains that are high in THCa, the psychoactive compound contained in cannabis, can deliver the most potent smoke for the ultimate in relaxation or powerful uplifting euphoria. Some cannabis strains with a particular high THC content can even make for outright psychedelic experiences!
But high THCa content doesn’t just mean that these cannabis varieties can be optimal for recreational users who seek the ultimate for chilling and relaxation. These strains rich in THC can also be a good choice for those users who need very potent medicine that can help with pain relief and other medical conditions.
The High THC strains category here in the Zamnesia web shop features these select strains that are known for their particular high THCa content. Find your favourite High THCa strain in no time here at Zamnesia!
Feeling overwhelmed by all the different cannabis strains out there? Use the Cannabis Seedfinder and find the strain that best suits your growing needs in 6 simple steps.
High THC Seeds - Click here for more info
Gushers (Zamnesia Seeds) feminized
Juicy, mouthwatering flavors: Savor ripe berries, tropical fruit, and zesty citrus. Top-shelf US genetics: Gelato #41 x Triangle Kush for excellent potency. 25% potency: Enjoy a euphoric cerebral rush followed by deep, body-melting relaxation. Heavy-hitting but balanced: Perfect for unwinding, intimacy, or tension relief. XL yields: Up to 15 oz/yd² indoors and 25 oz/plant outdoors.
Lemon Cherry Gelato (Zamnesia Seeds) feminized
Mouthwatering flavor: A delightful mix of fruity, pine, sour, sweet, tropical, and woody notes. Premium genetics: A cross of Sunset Sherbet × Girl Scout Cookies. Resilient & compact: Medium-sized plants suitable for various growing environments. Balanced effects: Promotes relaxation while enhancing focus and creativity.
Lemon Cherry Gelato Automatic (Zamnesia Seeds) feminized
Mouthwatering flavor: A delightful mix of fruity, pine, sour, sweet, tropical, and woody notes. Autoflowering excellence: Sunset Sherbet × Girl Scout Cookies × Ruderalis for fast-growing, resilient plants. Compact & versatile: Ideal for indoor and outdoor setups with manageable heights. Balanced effects: Promotes relaxation while enhancing focus and creativity.
LA Kush Cake (Zamnesia Seeds) feminized
Decadent flavors: Savor notes of sweet vanilla cake with a spicy, peppery kick. Elite US genetics: Wedding Cake x Kush Mints combine for top-tier potency. 25% potency: For deep relaxation and mood-enhancing euphoria. Monster yields: Up to 18 oz/yd² indoors and 30 oz/plant outdoors. Effortless growth: Hardy, resilient, and packed with dense, frosty buds.
Dutch Treat (Zamnesia Seeds) Feminized
Complex aromas: A delightful mix of fruity, orange, and sweet terps. Classic genetics: A hybrid of Northern Light x Haze x Skunk#1. Compact growth: A small, balanced strain that will produce a good harvest with proper care. Uplifting effects: Enjoy mental clarity and a mellowing physical buzz.
Wedding Crasher (Zamnesia Seeds) feminized
Rich flavors: A decadent mix of vanilla, sweet berries, and diesel. Potent & balanced: 21% potency delivers focus, creativity, and full-body relaxation. Heavy yields: Up to 21 oz/plant outdoors and 15 oz/yd² indoors. Stunning buds: Resinous nugs with vibrant green, blue, and purple hues. Quick turnaround: Harvest potent buds in just 9–10 weeks of bloom.
King Louis (Zamnesia Seeds) feminized
Royal genetics: King Louis descends from top-shelf Californian strains. Big flavors and aromas: Enjoy a mix of fresh, earthy pine terps. 24% potency: For a heavy-handed buzz. Short stature: Ideal for smaller spaces.
White Runtz (Zamnesia Seeds) feminized
Super sweet: The Runtz line is loved for its bold candy aromas. Top-shelf Cali genetics: White Runtz was born and bred in the San Francisco Bay Area. Excellent resin production: Harvest big, dense, snow-white flowers. 24% potency: Enjoy a heavy, tingly body buzz ideal for beating tension.
King Louis Automatic (Zamnesia Seeds) feminized
Express harvests: King Louis Automatic is ready for the picking just 10 weeks after germination. Great potency: Enjoy 24% potency and soothing effects. Delicious terps: Savor fresh aromas and flavors of pine, earth, and wood. Royal genetics: King Louis descends from OG Kush and LA Confidential.
Bananakin Skywalker (Zamnesia Seeds x DNA Genetics) feminized
Bananakin Skywalker is sending shockwaves through the Force with its incredible potency (25%) and old-school flavor. This exclusive indica-dominant cultivar, created by the experts at Zamnesia Seeds and DNA Genetics, promises to take your mind and body to a galaxy far, far away. Still, you’ll need to order quickly, as there are only 600 seed packs available (500 EU/100 US).
White Truffle (Zamnesia Seeds) feminized
Complex flavors: Savor delicious notes of sweet autumn fruits and nuts. Full-body effects: Enjoy an initial cerebral hit that gradually soothes the entire body. Connoisseur genetics: White Truffle is a unique variety of Gorilla Butter. Plenty of potency: White Truffle buds pack up to 25% potency.
Super Boof (Zamnesia Seeds) feminized
Award-winning: Super Boof (aka Superboof) was Leafly's Strain of the Year in 2024. High strength: Savor 26% potency and aromatic terpenes. Soothing effects: Enjoy a profound buzz that combines mental euphoria with a warm physical sensation. Extra frost: Super Boof produces a thick coat of resin, ideal for hash-making.
Grease Monkey (Zamnesia Seeds) feminized
All-star USA genetics: Grease Monkey stems from a cross of GG#4 and Cookies & Cream. Indica dominance: Expect bushy plants with rock-hard nugs. Top-shelf potency: Grease Monkey boasts 24% potency and skunky, gassy terpenes. Fast-flowering: Grease Monkey takes just 8 weeks to reach maturity indoors.
Rainbow Sherbet (Zamnesia Seeds) feminized
Savor the rainbow: Enjoy waves of juicy sweetness. Time-tested genetics: The proud progeny of Pink Guava and Sunset Sherbet. Sky-high strength: Enjoy potency concentrations of 25%. Rewarding harvests: Pull in big yields indoors and out.
Slurricane (Zamnesia Seeds) feminized
Top US genetics: Enjoy the original Slurricane, bred from Purple Punch x Do-Si-Dos. Complex terps: Slurricane has sweet and spicy berry aromas/flavors. Compact structure: Plants are stout and discreet. Heavy yields: Slurricane yields up to 13 oz/yd² indoors and 23 oz/plant outside.
Gelonade (Zamnesia Seeds) feminized
Trusted and loved genetics: This hybrid is the lovechild of Gelato and Lemon Tree. Satisfying harvests: Reared in optimal conditions, Gelonade pleases growers with healthy yields. Exciting terpene profile: Refreshing citrus and spicy pepper combine to provide a fruity blend with a kick. Soothing effects: Excellent when you need to loosen up and relax.
Biscotti (Zamnesia Seeds) feminized
If you're shopping for a robust indica with a rich flavor profile, Biscotti is an excellent choice. Known for its impressive potency, this variety is a standout in terms of growth and yield. With attentive cultivation, Biscotti seeds are poised to deliver bountiful harvests.
Frosted Guava Automatic (Zamnesia Seeds) feminized
Looking for an auto with great aromas, plenty of potency, and solid American genetics? Then look no further. Zamnesia's Frosted Guava Automatic delivers exceptional yields, a complex tropical fruit aroma, and a robust potency that's perfect for enthusiasts.
Apple Fritter Automatic (Zamnesia Seeds) feminized
Few autoflowering cannabis varieties deliver the potency, aromas, and excellent grow traits found in Apple Fritter Automatic. Backed by top-shelf US genetics, this seed is sure to quickly climb your list of favorite autoflowering strains.
Apple Fritter (Zamnesia Seeds) feminized
Zamnesia's Apple Fritter will enhance your mood, soothe your body, and stimulate your mind. Oh, and did we mention that it has the aroma of warm, homemade apple pastries? If you're looking for a potent, high-yielding strain with solid US genetics, make some room in your grow for Apple Fritter.
Pink Rozay (Zamnesia Seeds) feminized
Celebrate the qualities of Pink Rozay, a US-bred variety that stands out with its unique characteristics! This variety brings together the best of its parentage, offering a robust potency, a delightful social experience, and wine-like aromas that will entice you for more.
Wedding Cake Automatic (Zamnesia Seeds) feminized
From the team at Zamnesia Seeds comes Wedding Cake Automatic. These cannabis seeds are not only a joy to grow but also offer a delightful experience—thanks to their impressive flavour profile. An easy, breezy specimen in the grow room, she's perfect for beginners looking to get their feet wet, and experienced growers seeking a hassle-free home project.
Runtz (Zamnesia Seeds) feminized
Discover the excitement with our latest offering—a cultivar that's been a hit in California. This blend of two renowned varieties is known for its delightful flavor, robustness, and well-rounded characteristics. It's a high-yield, quick-flowering plant that's sure to impress. Experience the sensation yourself with these seeds!
Bruce Banner 3 (Zamnesia Seeds) Feminized
Bruce Banner #3 is known for its strong and invigorating qualities that foster creativity and focus. This robust variety is gaining popularity for its ability to enhance productivity and inspire new levels of innovation.
Girl Scout Cookies (Zamnesia Seeds) Feminized
Girl Scout Cookies is an American hybrid that has become very popular in Europe. This strain features a combination of top Cookie genetics, resulting in a new variety that is both unprecedented and powerful. Its effects are uplifting and can provide relaxation, with potent buds that are ready for harvest in just 8-9 weeks of flowering.
Blackberry Moonstones Auto (Blimburn Seeds) feminized
Love fruity flavors, uplifting effects, and top-shelf potency? Look no further—Blackberry Moonstones Auto by Blimburn Seeds delivers all of this and more in a fast, compact auto seed. In just 8–10 weeks, this budding hybrid will reward you with heavy harvests of rock-hard, frosty purple flowers that smell, taste, and smoke amazingly.
Permanent Marker (Blimburn Seeds) feminized
Permanent Marker will leave a permanent impression on you as soon as you plant her seeds. This uber-potent feminized photoperiod strain is resilient, productive, and ideal for indoor and outdoor cultivation. The resulting buds are glittering with trichomes and offer sweet, candy-like flavors. With potency levels of up to 34%, a strong euphoric high rounds off the experience perfectly.
Permanent Marker (Zamnesia Seeds) feminized
Award-winning genetics: Permanent Marker was Leafly's Strain of the Year in 2023. Extreme potency: Enjoy up to 31% potency! High-profile origins: Permanent Marker was originally created by JBeezy at Seed Junky Genetics. Dank aromas: Enjoy lingering floral fumes with notes of soap and gas.
Rainbow Sherbet Automatic (Zamnesia Seeds) feminized
Spectrum of Flavors: Rich, sweet, fruity, and strawberry flavors fill the senses. Impressive Lineage: Bred from Pink Guava, Sunset Sherbet, and ruderalis. Effortless Cultivation: Easygoing growing experience. Perfect for all budding cultivators. Soothing Effects: 24% potency boasting relaxing sensations and uplifting moments.
Tangerine Dream (Zamnesia Seeds) feminized
When legends cross, they create legendary outcomes. Or at least that was the case when our breeders created Tangerine Dream from a select variety of classic strains. Boasting sweet citrus aromas and flavors, hardy grow traits, and a happy, uplifting high, there's little not to love about Tangerine Dream by Zamnesia Seeds. But don't take our word for it—order your seeds now and find out yourself.
Alien OG (Zamnesia Seeds) feminized
Alien OG combines genetics from Tahoe OG and Alien Kush. Born and bred in San Francisco, this Cali classic boasts a delicious pine and citrus aroma, versatile grow traits, and a potent, trippy cerebral buzz.
Wurlz F1 Automatic (Zamnesia Seeds) feminized
By harnessing the same genetic techniques that are used in commercial farming, the Wurlz F1 hybrid Automatic from Zamnesia offers a reliable and uniform growing experience that results in a bevy of buds rich in terpenes. Taking just 9–10 weeks from seed to harvest, this is a fast-growing cultivar that rewards growers with sweet, fruity nugs that showcase deeply soothing sensations.
Runtz F1 Automatic (Zamnesia Seeds) feminized
Boasting supreme genetics, the Runtz F1 Automatic seed variety by Zamnesia Seeds is here to enhance your seed cultivation collection. This compact plant offers uniformity, reliability, and, above all, great buds that are teeming with mouth-watering terpenes and robust potency. If you've been looking for a robust autoflower seed that will deliver the goods, Runtz F1 Automatic could be for you.
Super THC Pack - Automatic Strains
Gone are the days when growing autos meant sacrificing potency and aroma. Modern autoflowers are capable of producing excellent buds that easily rival those of photoperiod strains, and this pack is here to prove it. The seeds included here come from select autoflowering genetic lines that produce dense buds dripping with mouth-watering aromas and, most importantly, mind-bending amounts of THC.
Gelato Automatic (Zamnesia Seeds) feminized
Gone are the days when autos delivered tasteless buds, low robustness levels, and poor harvests. Gelato Automatic will change any misconceptions you may have about auto seeds. Expect a burst of flavor and impressive strength.
Wedding Cake (Zamnesia Seeds) feminized
Wedding Cake is a treat that can be appreciated for its unique qualities, no matter the occasion! This strain is not only known for its distinctive flavors but is also super easy to grow, with a flowering time of around 65 days. Discover the qualities of Wedding Cake for yourself!
Purple Punch (Zamnesia Seeds) feminized
Purple Punch by Zamnesia Seeds is a dreamy variety that shines with an exquisite taste and a soothing presence. Despite her compact stature, this variety is very easy to grow and can deliver impressive yields.
Gelato (Zamnesia Seeds) feminized
Zamnesia Seeds introduces Gelato, a robust indica-dominant strain that exhibits impressive growth and offers a unique flavor profile. Our version is enhanced with the addition of Wedding Cake genetics, providing a distinctive experience for enthusiasts.
Banana (Zamnesia Seeds) Feminized
From the scenic heights of the Santa Cruz mountains in California, we introduce Zamnesia’s Banana, a highly potent variety. This hybrid, a combination of OG Kush and Banana, offers a delightful fruity essence. The Banana flavor is enriched with notes of lemon and pepper, providing a smooth and enjoyable taste experience.
GG#4 (Zamnesia Seeds) feminized
Discover the exclusive GG#4, now available at Zamnesia Seeds! This exceptionally robust and flavorful Indica, previously only found in the US, offers a harmonious blend of sensations. Its remarkable strength makes GG#4 a top choice for those seeking therapeutic benefits for various health conditions.
Poison Envy (Seedstockers x Zamnesia Seeds) feminized
Meet Poison Envy, an exclusive strain by Zamnesia Seeds x Seedstockers with 28% potency. Boasting mouthwatering notes of berries, cherries, and pine and powerful effects, these premium feminized seeds won’t last, so get yours while you still can. There are only 600 seed packs available (500 EU/100 US), and they're selling fast!
Fat Bastard (Blimburn Seeds) feminized
If you're looking for a strain that will really deliver come harvest time, make space for Blimburn Seeds' Fat Bastard. This variety has the potential to pump out up to a whopping 31.5 oz/plant in outdoor conditions. What's more, her flowers are of unrivaled quality and power—full of resin and skunky aromas enhanced by citrus undertones.
Ghost Train Haze (Zamnesia Seeds) feminized
Hardy Haze genetics: Ghost Train Haze descends from a legendary Haze cut bred by Nevil Schoenmakers. Excellent strength: Expect big buds packing 25% potency and delicious terps. Bold aromas: Ghost Train Haze smells of dank, spicy diesel. Heavy yields: Expect harvests of up to 21 oz/plant!
Ghost Train Haze Automatic (Zamnesia Seeds) feminized
Compact plants: Ghost Train Haze Auto reaches max heights of 4–4.5 ft. Speedy flowering time: Harvest real Haze weed just 12–14 weeks after sprouting your seeds. Top-shelf strength: Ghost Train Haze Auto packs 24% potency and dank diesel terpenes. Excellent yields: Ghost Train Haze Auto yields up to 19.5 oz/yd² indoors or 7 oz/plant outdoors.
Gelonade Automatic (Zamnesia Seeds) feminized
True Cali heritage: Gelonade Automatic is the perfect example of the best California has to offer. Zesty and refreshing flavors: The perfect blend of peppery and lemony notes. Fast and bountiful: Despite the sativa dominance, the ruderalis influence has gifted Gelonade Automatic with a quick life cycle. Happy and euphoric: Prepare to smash that to-do list!
Do-Si-Dos F1 Automatic (Zamnesia Seeds) feminized
From the team at Zamnesia Seeds comes Do-Si-Dos F1 Automatic. Harnessing uniform and reliable F1 genetics, this cultivar is not only incredibly simple and hassle-free to grow but also delivers great-tasting and potent buds. Plants stay close to the ground and provide a dependable cultivation experience that will appeal to all.
Super THC Pack - Feminized Strains
Picture heavy colas of bulging calyxes dripping with delicious resin. That's what you can expect from these hard-hitting THC monsters. Be warned—these strains aren't for the faint-hearted. Packing extremely high THC levels and plenty of terpenes, the strains in our Super THC Pack are ideal for veteran smokers or anyone looking for knockout, pseudo-psychedelic effects.
Black Runtz (Zamnesia Seeds) feminized
Tantalizing tastes: Enjoy flavors of sourness, berries, and fruit. Epic genetics: The offspring of legendary parents Zkittlez, Gelato, and Runtz. Rapid flowering: Watch your buds burst into maturity in as little as 8 weeks. Mind-blowing power: Prepare for potency levels of up to 24%.
A guide to high-THC strains
Are you looking to purchase cannabis seeds with extreme THC levels? Well, you’re about to discover some of the best strains to suit your desires. However, before we introduce you to our superstar weed varieties, we think you’ll find this brief guide helpful for your cultivation endeavours. Below, find out the key benefits of growing strains loaded with THC, and how to raise them.
Benefits of strains with a high THC content
Why do growers choose to cultivate high-THC strains in the first place? Well, part of the answer is quite obvious: they contain more THC! Higher quantities of the psychoactive cannabinoid means it takes less plant material to experience equally potent effects. With weaker varieties, many experienced smokers might need a whole joint to feel suitably high, whereas with a high-THC strain, a single bong hit might suffice. Overall, a stash of high-THC flowers lasts longer. Those with a particularly high tolerance can also use them to make extremely powerful edibles and extracts to really scratch their itch.
Growing cannabis with higher THC levels
You might think that growing high-THC cannabis takes some kind of special approach—but you’d be mistaken. You can grow these plants in the same way as other varieties. Strains high in THC are innately “wired” to churn out much higher quantities of the cannabinoid. However, this doesn’t mean you can get away with taking shortcuts. Ultra-potent plants still depend on powerful lights, high-quality organic nutrients, and a mindful watering schedule to express their full genetic potential.
Buy the best high-THC genetics available
Do you want to use less of your stash every time you get high? Or maybe your favourite strains aren’t hitting like they used to? Well, what are you waiting for? High-THC strains from Zamnesia will take your experience to another level, without demanding any more work in the grow room or garden. To get you started on your journey, here are some of the strongest varieties you can get your hands on:
- Bruce Banner 3: Brace yourself for THC levels of 27% and monster yields
- Gorilla Glue: This beast contains 26% THC and fruity and earthy terpenes
- Banana: Experience tropical vibes and THC levels of 28%
- Larry Bird Kush: With a THC content of 26%, this strain will have you giggling
- Wedding Cake Automatic: Prepare to enjoy 24% THC after a rapid growing cycle
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