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

GG4 Auto | Cannabis Seeds by Azarius

GG4 Auto

New

GG4 Auto

£18,04

GG4 Auto | Cannabis Seeds by Azarius

GG4 Auto

New

GG4 Auto

£18,04

GG4 Auto | Cannabis Seeds by Azarius

GG4 Auto

New

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

GG4 Auto | Cannabis Seeds by Azarius

GG4 Auto

New

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

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

Granddaddy Purple | Cannabis Seeds by Azarius

Granddaddy Purple

New

Granddaddy Purple

£18,04

Granddaddy Purple | Cannabis Seeds by Azarius

Granddaddy Purple

New

Granddaddy Purple

£18,04

Granddaddy Purple | Cannabis Seeds by Azarius

Granddaddy Purple

New

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

Granddaddy Purple | Cannabis Seeds by Azarius

Granddaddy Purple

New

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

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

Thai Dream - Cannabis Seeds by Azarius

Thai Dream

New

Thai Dream

£14,57

Thai Dream - Cannabis Seeds by Azarius

Thai Dream

New

Thai Dream

£14,57

Thai Dream - Cannabis Seeds by Azarius

Thai Dream

New

Thai Dream

Feminized seeds

Thai Dream is a Sativa-dominant hybrid born from the exceptional genetics of Blue Dream and Lemon. With THC levels ranging from 21-25%, it offers potent effects that leave you relaxed and sleepy. The flavor profile is a delightful blend of fruity, blueberry, berry, and citrus notes. Ideal for both indoor and outdoor cultivation, Thai Dream ensures high yields and a rich terpene profile for...

£14,57

Thai Dream - Cannabis Seeds by Azarius

Thai Dream

New

Thai Dream

Feminized seeds

Thai Dream is a Sativa-dominant hybrid born from the exceptional genetics of Blue Dream and Lemon. With THC levels ranging from 21-25%, it offers potent effects that leave you relaxed and sleepy. The flavor profile is a delightful blend of fruity, blueberry, berry, and citrus notes. Ideal for both indoor and outdoor cultivation, Thai Dream ensures high yields and a rich terpene profile for...

£14,57

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

Moby Dick | Cannabis Seeds by Azarius

Moby Dick

New

Moby Dick

£14,57

Moby Dick | Cannabis Seeds by Azarius

Moby Dick

New

Moby Dick

£14,57

Moby Dick | Cannabis Seeds by Azarius

Moby Dick

New

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

Moby Dick | Cannabis Seeds by Azarius

Moby Dick

New

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

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 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

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 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

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 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

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 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

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

New

Do-Si-Dos Auto

£18,04

Do-Si-Dos Auto | Cannabis Seeds by Azarius

Do-Si-Dos Auto

New

Do-Si-Dos Auto

£18,04

Do-Si-Dos Auto | Cannabis Seeds by Azarius

Do-Si-Dos Auto

New

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

Do-Si-Dos Auto | Cannabis Seeds by Azarius

Do-Si-Dos Auto

New

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

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 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

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 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

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

OG Kush | Cannabis Seeds by Azarius

OG Kush

New

OG Kush

£14,57

OG Kush | Cannabis Seeds by Azarius

OG Kush

New

OG Kush

£14,57

OG Kush | Cannabis Seeds by Azarius

OG Kush

New

OG Kush

Feminized seeds

OG Kush seeds, a predominantly Indica hybrid, offer citrusy flavours and a strong body high. With THC levels between 20% and 24%, they provide deep relaxation and physical relief. Ideal for both indoor and outdoor cultivation, these seeds ensure stable genetics and a productive flowering period of 8–10 weeks. <td...

£14,57

OG Kush | Cannabis Seeds by Azarius

OG Kush

New

OG Kush

Feminized seeds

OG Kush seeds, a predominantly Indica hybrid, offer citrusy flavours and a strong body high. With THC levels between 20% and 24%, they provide deep relaxation and physical relief. Ideal for both indoor and outdoor cultivation, these seeds ensure stable genetics and a productive flowering period of 8–10 weeks. <td...

£14,57

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

Ice Cream Cake | Cannabis Seeds by Azarius

Ice Cream Cake

New

Ice Cream Cake

£18,04

Ice Cream Cake | Cannabis Seeds by Azarius

Ice Cream Cake

New

Ice Cream Cake

£18,04

Ice Cream Cake | Cannabis Seeds by Azarius

Ice Cream Cake

New

Ice Cream Cake

Feminized seeds

Ice Cream Cake is a mostly indica hybrid with Gelato #33 and Wedding Cake lineage, boasting 22–25% THC. It offers citrus, pine, and sweet flavours, with euphoric, happy, and relaxing effects—perfect for evening use. Genetics: Gelato #33 x Wedding Cake <td...

£18,04

Ice Cream Cake | Cannabis Seeds by Azarius

Ice Cream Cake

New

Ice Cream Cake

Feminized seeds

Ice Cream Cake is a mostly indica hybrid with Gelato #33 and Wedding Cake lineage, boasting 22–25% THC. It offers citrus, pine, and sweet flavours, with euphoric, happy, and relaxing effects—perfect for evening use. Genetics: Gelato #33 x Wedding Cake <td...

£18,04

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 flavours with a high THC of 27%. Ideal for both indoor and outdoor cultivation, it offers a mix of relaxing body highs 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 flavours with a high THC of 27%. Ideal for both indoor and outdoor cultivation, it offers a mix of relaxing body highs 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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