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High-THC Seeds

Our high-THC cannabis seeds are carefully selected for their potency and quality. If you're looking to buy potent weed genetics, then you're in the right place. At Azarius, we offer the best high-THC marijuana seeds with discreet shipping and a satisfaction guarantee. For growers who love potency, there are no better options than our high-THC weed seeds. Buy yours from Azarius today.

11 products

11 products

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Seeds: 1 £ 5,89 Seeds: 3 £ 14,57 Seeds: 5 £ 22,21 Seeds: 10 £ 36,09

Super Silver Haze | Cannabis Seeds by Azarius

Super Silver Haze

New

Super Silver Haze

£14.57

Super Silver Haze | Cannabis Seeds by Azarius

Super Silver Haze

New

Super Silver Haze

£14.57

Super Silver Haze | Cannabis Seeds by Azarius

Super Silver Haze

New

Super Silver Haze

Feminized seeds

Super Silver Haze is a mostly sativa hybrid blending Skunk, Northern Lights, and Haze. With up to 24% potency, its citrus, herbal, and skunk flavors provide an energizing and creative effect ideal for daytime use. Genetics: (Northern Light #5 x Haze) x (Skunk #1 x Haze) ...

£14.57

Super Silver Haze | Cannabis Seeds by Azarius

Super Silver Haze

New

Super Silver Haze

Feminized seeds

Super Silver Haze is a mostly sativa hybrid blending Skunk, Northern Lights, and Haze. With up to 24% potency, its citrus, herbal, and skunk flavors provide an energizing and creative effect ideal for daytime use. Genetics: (Northern Light #5 x Haze) x (Skunk #1 x Haze) ...

£14.57

Seeds: 1 £ 6,59 Seeds: 3 £ 18,04 Seeds: 5 £ 25,68 Seeds: 10 £ 43,03

Watermelon Gelato Auto | Cannabis Seeds by Azarius

Watermelon Gelato Auto

New

Watermelon Gelato Auto

£18.04

Watermelon Gelato Auto | Cannabis Seeds by Azarius

Watermelon Gelato Auto

New

Watermelon Gelato Auto

£18.04

Watermelon Gelato Auto | Cannabis Seeds by Azarius

Watermelon Gelato Auto

New

Watermelon Gelato Auto

Autoflowering seeds

Watermelon Gelato Auto, an indica-dominant hybrid from Watermelon Zkittlez, Gelato 45, and ruderalis offers a great potency (20–25%) with bright, floral flavors and a fruity essence. Providing deep relaxation, happiness, and a sleepy feeling, this autoflowering strain is ideal for both indoor and outdoor cultivation, ensuring high yields and a rich terpene profile for an enhanced...

£18.04

Watermelon Gelato Auto | Cannabis Seeds by Azarius

Watermelon Gelato Auto

New

Watermelon Gelato Auto

Autoflowering seeds

Watermelon Gelato Auto, an indica-dominant hybrid from Watermelon Zkittlez, Gelato 45, and ruderalis offers a great potency (20–25%) with bright, floral flavors and a fruity essence. Providing deep relaxation, happiness, and a sleepy feeling, this autoflowering strain is ideal for both indoor and outdoor cultivation, ensuring high yields and a rich terpene profile for an enhanced...

£18.04

Seeds: 1 £ 10,06 Seeds: 3 £ 18,04 Seeds: 5 £ 29,15 Seeds: 10 £ 46,51

Wedding Cake Auto | Cannabis Seeds by Azarius

Wedding Cake Auto

New

Wedding Cake Auto

£18.04

Wedding Cake Auto | Cannabis Seeds by Azarius

Wedding Cake Auto

New

Wedding Cake Auto

£18.04

Wedding Cake Auto | Cannabis Seeds by Azarius

Wedding Cake Auto

New

Wedding Cake Auto

Autoflowering seeds

Wedding Cake Auto, a potent, mostly indica hybrid from Wedding Cake x Girl Scout Cookies Auto, offers a powerful, balanced, relaxing, and cerebral experience. With sweet, fruity, woody flavors and 20–25% potency, it thrives indoors and outdoors, yielding impressive results. Ideal for both seasoned and novice growers. <td...

£18.04

Wedding Cake Auto | Cannabis Seeds by Azarius

Wedding Cake Auto

New

Wedding Cake Auto

Autoflowering seeds

Wedding Cake Auto, a potent, mostly indica hybrid from Wedding Cake x Girl Scout Cookies Auto, offers a powerful, balanced, relaxing, and cerebral experience. With sweet, fruity, woody flavors and 20–25% potency, it thrives indoors and outdoors, yielding impressive results. Ideal for both seasoned and novice growers. <td...

£18.04

Seeds: 1 £ 5,20 Seeds: 3 £ 13,18 Seeds: 5 £ 18,04 Seeds: 10 £ 32,62

Sour Diesel | Cannabis Seeds by Azarius

Sour Diesel

New

Sour Diesel

£13.18

Sour Diesel | Cannabis Seeds by Azarius

Sour Diesel

New

Sour Diesel

£13.18

Sour Diesel | Cannabis Seeds by Azarius

Sour Diesel

New

Sour Diesel

Feminized seeds

Sour Diesel, a renowned sativa-dominant hybrid, offers uplifting, cerebral effects with flavors of citrus, diesel, and earthiness. Originating from a cross of Chemdawg and Super Skunk, it's known for its high potency (up to 27%) and terpene profile, making it ideal for daytime energy. ...

£13.18

Sour Diesel | Cannabis Seeds by Azarius

Sour Diesel

New

Sour Diesel

Feminized seeds

Sour Diesel, a renowned sativa-dominant hybrid, offers uplifting, cerebral effects with flavors of citrus, diesel, and earthiness. Originating from a cross of Chemdawg and Super Skunk, it's known for its high potency (up to 27%) and terpene profile, making it ideal for daytime energy. ...

£13.18

Seeds: 1 £ 5,20 Seeds: 3 £ 13,18 Seeds: 5 £ 20,82 Seeds: 10 £ 38,17

Sour Diesel Auto | Cannabis Seeds by Azarius

Sour Diesel Auto

New

Sour Diesel Auto

£13.18

Sour Diesel Auto | Cannabis Seeds by Azarius

Sour Diesel Auto

New

Sour Diesel Auto

£13.18

Sour Diesel Auto | Cannabis Seeds by Azarius

Sour Diesel Auto

New

Sour Diesel Auto

Autoflowering seeds

Sour Diesel Auto, a sativa-dominant hybrid bred from Chemdog 91 x Super Skunk, offers a citrusy, diesel, herbal flavor. With medium potency (16–23%), it provides an energetic, euphoric experience. Easy to cultivate indoors and outdoors, it boasts fast growth and ample yields. Genetics:...

£13.18

Sour Diesel Auto | Cannabis Seeds by Azarius

Sour Diesel Auto

New

Sour Diesel Auto

Autoflowering seeds

Sour Diesel Auto, a sativa-dominant hybrid bred from Chemdog 91 x Super Skunk, offers a citrusy, diesel, herbal flavor. With medium potency (16–23%), it provides an energetic, euphoric experience. Easy to cultivate indoors and outdoors, it boasts fast growth and ample yields. Genetics:...

£13.18

Seeds: 1 £ 7,28 Seeds: 3 £ 19,43 Seeds: 5 £ 29,84 Seeds: 10 £ 49,98

Bruce Banner Auto | Cannabis Seeds by Azarius

Bruce Banner Auto

New

Bruce Banner Auto

£19.43

Bruce Banner Auto | Cannabis Seeds by Azarius

Bruce Banner Auto

New

Bruce Banner Auto

£19.43

Bruce Banner Auto | Cannabis Seeds by Azarius

Bruce Banner Auto

New

Bruce Banner Auto

Autoflowering seeds

Bruce Banner Autoflower is a mostly sativa strain offering diesel, earthy, sweet flavors with energetic and relaxing effects. With potency levels of 21–26%, it promotes happiness and focus. Ideal for indoor or outdoor growth, it is harvest-ready in 8–10 weeks and thrives under optimal conditions. ...

£19.43

Bruce Banner Auto | Cannabis Seeds by Azarius

Bruce Banner Auto

New

Bruce Banner Auto

Autoflowering seeds

Bruce Banner Autoflower is a mostly sativa strain offering diesel, earthy, sweet flavors with energetic and relaxing effects. With potency levels of 21–26%, it promotes happiness and focus. Ideal for indoor or outdoor growth, it is harvest-ready in 8–10 weeks and thrives under optimal conditions. ...

£19.43

Seeds: 1 £ 7,28 Seeds: 3 £ 19,43 Seeds: 5 £ 29,84 Seeds: 10 £ 49,98

Girl Scout Cookies Auto | Cannabis Seeds by Azarius

Girl Scout Cookies Auto

New

Girl Scout Cookies Auto

£19.43

Girl Scout Cookies Auto | Cannabis Seeds by Azarius

Girl Scout Cookies Auto

New

Girl Scout Cookies Auto

£19.43

Girl Scout Cookies Auto | Cannabis Seeds by Azarius

Girl Scout Cookies Auto

New

Girl Scout Cookies Auto

Autoflowering seeds

Girl Scout Cookies Auto is a sativa-dominant hybrid combining Girl Scout Cookies and ruderalis. It offers a sweet, earthy flavor, a euphoric buzz, and 20–22% potency. Ideal for daytime use, it's simple to cultivate and harvest-ready in just 8–10 weeks after germination, with high yield potential. ...

£19.43

Girl Scout Cookies Auto | Cannabis Seeds by Azarius

Girl Scout Cookies Auto

New

Girl Scout Cookies Auto

Autoflowering seeds

Girl Scout Cookies Auto is a sativa-dominant hybrid combining Girl Scout Cookies and ruderalis. It offers a sweet, earthy flavor, a euphoric buzz, and 20–22% potency. Ideal for daytime use, it's simple to cultivate and harvest-ready in just 8–10 weeks after germination, with high yield potential. ...

£19.43

Seeds: 1 £ 5,89 Seeds: 3 £ 14,57 Seeds: 5 £ 22,21 Seeds: 10 £ 36,09

Durban Poison Auto | Cannabis Seeds by Azarius

Durban Poison Auto

New

Durban Poison Auto

£14.57

Durban Poison Auto | Cannabis Seeds by Azarius

Durban Poison Auto

New

Durban Poison Auto

£14.57

Durban Poison Auto | Cannabis Seeds by Azarius

Durban Poison Auto

New

Durban Poison Auto

Autoflowering seeds

Durban Poison Auto is a sativa-dominant hybrid with earthy, pine flavors. Known for its energizing, euphoric effects, it's ideal for daytime use. Easy to grow, it fully matures in 8–10 weeks and thrives indoors or outdoors. Genetics: Durban Poison x Ruderalis <td...

£14.57

Durban Poison Auto | Cannabis Seeds by Azarius

Durban Poison Auto

New

Durban Poison Auto

Autoflowering seeds

Durban Poison Auto is a sativa-dominant hybrid with earthy, pine flavors. Known for its energizing, euphoric effects, it's ideal for daytime use. Easy to grow, it fully matures in 8–10 weeks and thrives indoors or outdoors. Genetics: Durban Poison x Ruderalis <td...

£14.57

Seeds: 1 £ 6,59 Seeds: 3 £ 18,04 Seeds: 5 £ 25,68 Seeds: 10 £ 43,03

Ice Cream Cake Auto | Cannabis Seeds by Azarius

Ice Cream Cake Auto

New

Ice Cream Cake Auto

£18.04

Ice Cream Cake Auto | Cannabis Seeds by Azarius

Ice Cream Cake Auto

New

Ice Cream Cake Auto

£18.04

Ice Cream Cake Auto | Cannabis Seeds by Azarius

Ice Cream Cake Auto

New

Ice Cream Cake Auto

Autoflowering seeds

Ice Cream Cake Auto is an indica-dominant hybrid with lineage from Wedding Cake, Gelato, and ruderalis. It features a potency ranging from 16–25%, offering a blend of spicy, sweet, and sour flavors. This strain provides social, relaxed, and excited effects, making it ideal for various occasions. Perfect for enjoying social activities, Ice Cream Cake Auto is a versatile addition to any...

£18.04

Ice Cream Cake Auto | Cannabis Seeds by Azarius

Ice Cream Cake Auto

New

Ice Cream Cake Auto

Autoflowering seeds

Ice Cream Cake Auto is an indica-dominant hybrid with lineage from Wedding Cake, Gelato, and ruderalis. It features a potency ranging from 16–25%, offering a blend of spicy, sweet, and sour flavors. This strain provides social, relaxed, and excited effects, making it ideal for various occasions. Perfect for enjoying social activities, Ice Cream Cake Auto is a versatile addition to any...

£18.04

Seeds: 1 £ 5,89 Seeds: 3 £ 14,57 Seeds: 5 £ 22,21 Seeds: 10 £ 36,09

Blue Dream | Cannabis Seeds by Azarius Seeds

Blue Dream

New

Blue Dream

£14.57

Blue Dream | Cannabis Seeds by Azarius Seeds

Blue Dream

New

Blue Dream

£14.57

Blue Dream | Cannabis Seeds by Azarius Seeds

Blue Dream

New

Blue Dream

Feminized seeds

Blue Dream, a balanced hybrid with origins in California, offers sweet berry bliss with an uplifting, hazy high and divine fruity flavours. Suitable for indoor/outdoor growth, it flowers in 9–10 weeks and yields up to 700g/plant. Genetics: Blueberry x Haze <td...

£14.57

Blue Dream | Cannabis Seeds by Azarius Seeds

Blue Dream

New

Blue Dream

Feminized seeds

Blue Dream, a balanced hybrid with origins in California, offers sweet berry bliss with an uplifting, hazy high and divine fruity flavours. Suitable for indoor/outdoor growth, it flowers in 9–10 weeks and yields up to 700g/plant. Genetics: Blueberry x Haze <td...

£14.57

Seeds: 1 £ 6,59 Seeds: 3 £ 18,04 Seeds: 5 £ 25,68 Seeds: 10 £ 43,03

Gelato | Cannabis Seeds by Azarius

Gelato

New

Gelato

£18.04

Gelato | Cannabis Seeds by Azarius

Gelato

New

Gelato

£18.04

Gelato | Cannabis Seeds by Azarius

Gelato

New

Gelato

Feminized seeds

Gelato Seeds is a balanced hybrid strain derived from Sunset Sherbet and Thin Mint Girl Scout Cookies, featuring berry, citrus, and sweet flavors with up to 26% potency. Ideal for both indoor and outdoor cultivation, it offers a mix of relaxing sensations and cerebral uplift, perfect for mood relief and creativity. <td...

£18.04

Gelato | Cannabis Seeds by Azarius

Gelato

New

Gelato

Feminized seeds

Gelato Seeds is a balanced hybrid strain derived from Sunset Sherbet and Thin Mint Girl Scout Cookies, featuring berry, citrus, and sweet flavors with up to 26% potency. Ideal for both indoor and outdoor cultivation, it offers a mix of relaxing sensations and cerebral uplift, perfect for mood relief and creativity. <td...

£18.04

Why Grow High-THC Seeds?

High-THC weed strains from the Azarius seed bank are some of the most potent genetics you can get your hands on. You'll want to buy strains with a high THC content if you're after a long-lasting and powerful experience. Growers and smokers value these genetics for several reasons, such as having developed a high tolerance to THC or simply because they prefer hard-hitting and longer-lasting psychoactive effects.

What Is THC and How Does It Work?

THC underpins the potency of cannabis. This molecule occurs in the trichomes of weed flowers in varying concentrations depending on genetic and environmental factors. When smoked, vaped, or eaten, THC enters the brain, where it triggers the release of the feel-good molecule dopamine, resulting in a euphoric effect. Investing in high-THC weed seeds means you'll get more of this cannabinoid with every inhalation.

What Is Considered High THC?

Cannabis users often ask questions such as "What percentage of THC is enough?" and "Is 20% THC a lot?". In truth, THC affects people differently based on factors such as tolerance and genetics. However, quantities of 25–30% are generally recognised as a high THC level.

How to Choose a High-THC Cannabis Strain

When buying high-THC marijuana seeds from our seed bank, you'll want to take some time to look at each strain's unique traits. Aside from the THC level (which will determine potency), check out the terpenes in each variety to get an idea of the flavours and effects they provide. You'll also want to consider the size of each plant and how much of a harvest you can expect to receive.

Are High-THC Feminized Photoperiod Seeds Stronger Than Autoflower Seeds?

Traditionally, most growers opted for feminized photoperiod strains when looking to buy cannabis seeds with high levels of THC. However, breeders have worked hard over the years to raise concentrations in auto strains. F1 hybrid autos, for example, offer huge levels of the cannabinoid. When looking to buy plants with the highest THC concentrations, you should definitely consider autoflowering genetics!

Are Indica Genetics More Potent Than Sativa?

Should you opt for sativa or indica strains when purchasing high-THC marijuana seeds? While these labels help to describe the potential size and appearance of a cannabis strain, they do little to describe its flavour or effects. Instead, you should focus solely on the THC and terpene content of a strain to determine its power.

Does Skunk, Gelato, or Gorilla Genetics Contain the Most THC?

Skunk, Gelato, and Gorilla genetics are all famous for their high concentrations of THC. While they'll all scratch that psychoactive itch, Gorilla strains offer some of the highest THC values available.

How Do You Increase THC Before Harvesting?

All high-THC weed seeds are capable of churning out huge levels of the cannabinoid, but you need to help them along the way. Provide strong lighting, the right nutrients, and the proper quantities of water during the growing cycle to produce some truly potent cannabis.

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