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.

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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

£14,57

Super Silver Haze

£14,57

Super Silver Haze

Feminized seeds

Super Silver Haze is a mostly sativa hybrid blending Skunk, Northern Lights, and Haze. With 22–24% THC, its citrus, herbal, and skunk flavours provide an energising and creative high ideal for daytime use. Genetics: Skunk x Northern Lights x Haze <td...

£14,57

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Super Silver Haze

Feminized seeds

£14,57

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

GG4

£18,04

GG4

£18,04

GG4

Feminized seeds

Gorilla Glue #4 is a high-THC, sativa-leaning hybrid from Chem Sis, Sour Dubb, and Chocolate Diesel. It delivers energetic and euphoric effects with fruity, piney, and spicy flavours. Ideal for various mood-related disorders, GG4 is prized for its resinous buds and premium quality, making it perfect for extracts. <td...

£18,04

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GG4

Feminized seeds

£18,04

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

GG4 Auto

£18,04

GG4 Auto

£18,04

GG4 Auto

Autoflowering seeds

Gorilla Glue #4 Autoflower is a mostly sativa hybrid with fruity, piney flavours and a euphoric high powered by 18–24% THC. It is efficient to grow, is harvest-ready in 8–10 weeks, and thrives indoors or outdoors. Genetics: Gorilla Glue #4 x Ruderalis <td...

£18,04

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GG4 Auto

Autoflowering seeds

£18,04

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

Moby Dick

£14,57

Moby Dick

£14,57

Moby Dick

Feminized seeds

Moby Dick is a predominantly sativa strain, a hybrid of White Widow x Haze, boasting citrus, pine, and sweet flavours. With a THC content of 24–27%, it provides energetic, happy highs. The perfect natural pick-me-up, Moby Dick grows well indoors and outdoors, flowering in 9-10 weeks. ...

£14,57

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Moby Dick

Feminized seeds

£14,57

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

Runtz

£19,43

Runtz

£19,43

Runtz

Feminized seeds

Runtz is a mostly sativa hybrid strain resulting from Gelato x Zkittlez. It offers a citrus, earthy, and sweet flavour profile. With a THC content of 19–22%, it delivers a happy, energising high. Ideal for creativity, it's perfect for both indoor and outdoor cultivation. Genetics:...

£19,43

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Runtz

Feminized seeds

£19,43

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

Sour Diesel

£13,18

Sour Diesel

£13,18

Sour Diesel

Feminized seeds

Sour Diesel, a renowned sativa-dominant hybrid, offers uplifting, cerebral effects with flavours of citrus, diesel, and earthiness. Originating from a cross of Chemdawg and Super Skunk, it's known for its high THC content (22–25%) and terpene profile, making it ideal for daytime energy. ...

£13,18

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Sour Diesel

Feminized seeds

£13,18

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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

£19,43

Bruce Banner Auto

£19,43

Bruce Banner Auto

Autoflowering seeds

Bruce Banner Autoflower is a mostly sativa strain offering diesel, earthy, sweet flavours with energetic and relaxing effects. With a THC level 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

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Bruce Banner Auto

Autoflowering seeds

£19,43

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

Do-Si-Dos Auto | Cannabis Seeds by Azarius

Do-Si-Dos Auto

£18,04

Do-Si-Dos Auto

£18,04

Do-Si-Dos Auto

Autoflowering seeds

The Do-Si-Dos Autoflower strain is a sativa-dominant hybrid with citrus, earthy, kush, and sweet flavours, offering euphoric and relaxing effects. It has a medium THC level (18–20%) and is ideal for both indoor and outdoor cultivation. It is harvest-ready in just 8–9 weeks and produces moderate yields. ...

£18,04

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Do-Si-Dos Auto

Autoflowering seeds

£18,04

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

Girl Scout Cookies | Cannabis Seeds by Azarius

Girl Scout Cookies

£19,43

Girl Scout Cookies

£19,43

Girl Scout Cookies

Feminized seeds

Girl Scout Cookies (GSC) is a mostly sativa hybrid with 18–25% THC, offering a fruity, sweet flavour and energetic, happy effects. Ideal for indoor and outdoor growth, plants thrive in low humidity and yield up to 700 g/plant outdoors. Utilise quality substrates for best results. Genetics:...

£19,43

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Girl Scout Cookies

Feminized seeds

£19,43

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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

£14,57

Durban Poison Auto

£14,57

Durban Poison Auto

Autoflowering seeds

Durban Poison Auto is a sativa-dominant hybrid (THC 21–25%) with earthy, pine flavours. Known for its energising, 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 ...

£14,57

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Durban Poison Auto

Autoflowering seeds

£14,57

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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.

High-THC Seeds

Super Silver Haze

Super Silver Haze

Super Silver Haze

Super Silver Haze

GG4

GG4

GG4

GG4

GG4 Auto

GG4 Auto

GG4 Auto

GG4 Auto

Moby Dick

Moby Dick

Moby Dick

Moby Dick

Runtz

Runtz

Runtz

Runtz

Sour Diesel

Sour Diesel

Sour Diesel

Sour Diesel

Bruce Banner Auto

Bruce Banner Auto

Bruce Banner Auto

Bruce Banner Auto

Do-Si-Dos Auto

Do-Si-Dos Auto

Do-Si-Dos Auto

Do-Si-Dos Auto

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies

Durban Poison Auto

Durban Poison Auto

Durban Poison Auto

Durban Poison Auto

Why Grow High-THC Seeds?

What Is THC and How Does It Work?

What Is Considered High THC?

How to Choose a High-THC Cannabis Strain

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

Are Indica Genetics More Potent Than Sativa?

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

How Do You Increase THC Before Harvesting?

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