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

Sour Diesel Auto | Cannabis Seeds by Azarius

Sour Diesel Auto

£13,18

Sour Diesel Auto

£13,18

Sour Diesel Auto

Autoflowering seeds

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

£13,18

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Sour Diesel Auto

Autoflowering seeds

£13,18

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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 £ 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

£19,43

Girl Scout Cookies Auto

£19,43

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 flavour, a euphoric high, and 20–22% THC. Ideal for daytime use, it's simple to cultivate and is harvest-ready in 8–10 weeks, with high yield potential. Genetics:...

£19,43

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Girl Scout Cookies Auto

Autoflowering 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

GG4 Auto

GG4 Auto

GG4 Auto

GG4 Auto

Sour Diesel Auto

Sour Diesel Auto

Sour Diesel Auto

Sour Diesel Auto

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies Auto

Girl Scout Cookies Auto

Girl Scout Cookies Auto

Girl Scout Cookies Auto

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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