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

Granddaddy Purple | Cannabis Seeds by Azarius

Granddaddy Purple

£18,04

Granddaddy Purple

£18,04

Granddaddy Purple

Feminized seeds

Granddaddy Purple is a high-THC, mostly indica hybrid with berry and fruity flavours, ideal for evening relaxation. Recognised for its resinous, deep purple buds, it has a flowering time of 8–10 weeks. Suitable for indoor and outdoor cultivation, it thrives with proper care and optimal conditions. ...

£18,04

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Granddaddy Purple

Feminized seeds

£18,04

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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

£18,04

Wedding Cake Auto

£18,04

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 flavours and 20–25% THC levels, it thrives indoors and outdoors, yielding impressive results. Ideal for both seasoned and novice growers. <td...

£18,04

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Wedding Cake Auto

Autoflowering seeds

£18,04

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

Wedding Cake | Cannabis Seeds by Azarius

Wedding Cake

£18,04

Wedding Cake

£18,04

Wedding Cake

Feminized seeds

Wedding Cake is a potent, mostly indica hybrid from Girl Scout Cookies x Cherry Pie with a sweet, earthy flavour. Boasting 17–23% THC, it offers euphoric and relaxing effects. Optimally grown, it flowers in 8–9 weeks, yielding resin-rich buds ideal for extracts. Genetics: Girl...

£18,04

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Wedding Cake

Feminized seeds

£18,04

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

Runtz Auto

£19,43

Runtz Auto

£19,43

Runtz Auto

Autoflowering seeds

Runtz Autoflower is an indica-dominant hybrid with a swift 8–10 week life cycle. It offers caramel, fruity, and herbal flavours with medium THC levels (18–22%). Known for its relaxing body high and soothing sensations, it's ideal after a long day at work. Accessible for both novice and experienced growers. <td...

£19,43

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

Godfather OG | Cannabis Seeds by Azarius

Godfather OG

£14,57

Godfather OG

£14,57

Godfather OG

Feminized seeds

Godfather OG seeds produce a mostly indica hybrid with fruity and woody flavours and a strong body high. With THC levels between 26–30%, this strain offers potent, relaxing effects. Ideal for indoor and outdoor cultivation, it boasts rich resin production and a flowering time of 8–10 weeks. ...

£14,57

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Godfather OG

Feminized seeds

£14,57

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

Godfather OG Auto | Cannabis Seeds by Azarius

Godfather OG Auto

£14,57

Godfather OG Auto

£14,57

Godfather OG Auto

Autoflowering seeds

Godfather OG Auto is an indica-dominant hybrid with a fruity, sweet, woody, and earthy flavour profile. It boasts high THC levels of 25–26%, offering potent effects like relaxation and euphoria. It also matures quickly (8–9 weeks), making it perfect for novice and seasoned growers. ...

£14,57

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Godfather OG Auto

Autoflowering seeds

£14,57

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

Apple Fritter Auto | Cannabis Seeds by Azarius

Apple Fritter Auto

£18,04

Apple Fritter Auto

£18,04

Apple Fritter Auto

Autoflowering seeds

Apple Fritter Autoflower, an indica-dominant hybrid from Sour Apple Auto x Animal Cookie, boasts high THC (22–25%) and flavours of earth, fruit, and sweetness flavours. It offers relaxing and euphoric effects, ideal for quiet evenings and lazy weekends. It's a resilient, compact plant that is harvest-ready in 8–10 weeks. <td...

£18,04

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Apple Fritter Auto

Autoflowering seeds

£18,04

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

Cherry Pie OG Auto | Cannabis Seeds by Azarius

Cherry Pie OG Auto

£13,18

Cherry Pie OG Auto

£13,18

Cherry Pie OG Auto

Autoflowering seeds

Cherry Pie Autoflower, a hybrid with strong indica dominance, delivers a berry, earthy, sweet flavour and a high THC content (21–25%). Its relaxing effect makes it perfect for easing physical discomfort. Able to flourish indoors or outdoors, it offers a quick life cycle of 8–10 weeks and significant yields. <td...

£13,18

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Cherry Pie OG Auto

Autoflowering seeds

£13,18

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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

Granddaddy Purple

Granddaddy Purple

Granddaddy Purple

Granddaddy Purple

Wedding Cake Auto

Wedding Cake Auto

Wedding Cake Auto

Wedding Cake Auto

Wedding Cake

Wedding Cake

Wedding Cake

Wedding Cake

Runtz Auto

Runtz Auto

Runtz Auto

Runtz Auto

Do-Si-Dos Auto

Do-Si-Dos Auto

Do-Si-Dos Auto

Do-Si-Dos Auto

Godfather OG

Godfather OG

Godfather OG

Godfather OG

Godfather OG Auto

Godfather OG Auto

Godfather OG Auto

Godfather OG Auto

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies

Girl Scout Cookies

Apple Fritter Auto

Apple Fritter Auto

Apple Fritter Auto

Apple Fritter Auto

Cherry Pie OG Auto

Cherry Pie OG Auto

Cherry Pie OG Auto

Cherry Pie OG 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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