High THC Cannabis Seeds

High THC Cannabis Seeds

This section is a collection of the most powerful and potent high THC cannabis seeds available to our team at SeedMasters.com!


We have carefully picked the very strongest strains in terms of high THC content, saving you time and providing you with some ferocious world class genetics that will seriously blow your socks off! We are excited to showcase the indisputable potency of these champion strains and to do our bit to make them more accessible as a whole.

Our High THC cannabis seeds are reserved for those with real tolerance, those who are brave, and those who are just plain irresponsible! This list is NOT for newbies!!!

These strains are perfect for the professional, long-term enthusiasts looking to put some raw horsepower behind their breeding operations, for the established home-growers looking to try something even more rewarding, or just for anyone with courage who is looking to put some hairs on their chest! Whatever your situation, it's safe to say these will not disappoint!

..and as always you can expect nothing less than 
high-quality cannabis seeds when you buy from our team here at SeedMasters.com! 
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Blue Forest Berry

The blue forest berry is a new strain from the Growers Choice breeding team. Sweet and fruity with a..

From £30.95

Blue Forest Berry Auto

The blue forest berry is a new strain from the Growers Choice breeding team. Sweet and fruity with a..

From £22.45

Blue Hash

Blue Hash cannabis seeds by Dinafem Seeds belong to a feminized Indica-dominant cannabis strain obta..

From £8.50

Blue Kush

Blue Kush cannabis seeds by Dinafem Seeds belong to a feminized, Sativa-dominant cannabis strain obt..

From £8.50

Blue Nerdz Auto

Auto Blue Nerdz Seeds are the autoflowering version of our Blue Nerdz Feminized Seeds. We took ..

From £9.95

Blue Thai

Blue Thai cannabis seeds by Dinafem Seeds belong to an Sativa/Indica, feminized cannabis strain that..

From £7.50

Blue Widow

Blue Widow is a popular feminized hybrid strain from Dinafem Seeds. Crossing Blueberry and White Wi..

From £8.50

Blueberry Auto

Blueberry Automatic cannabis seeds are a beautiful pairing of two great strains, Lowryder #2 and the..

From £145.00

Blueberry Cheese

Blueberry Cheese cannabis seeds are a very productive and easy to grow variety which also produces v..

From £9.95

Blueberry Ghost OG

Two legendary strains combine to produce this very special strain. We´ve used a monster Blueberry (B..

From £8.00

Bola Mintz

Bola Mintz was created in a complex and extensive breeding project and contains the genetics of the ..

From £27.95

Brain Damage

Braindamage is probably the strongest weed available at this moment. The THC and CBD levels in ..

From £30.95

Brain Damage Auto

Brain Damage Automatic is probably one of the strongest weeds available at this moment. The THC..

From £22.45

Bruce Banner #3

Bruce Banner cannabis seeds take its name from the alter-ego of comic book superhero the Hulk and it..

From £29.95

Bruce Banner #3

With ridiculous THC levels of 30%, these cannabis seeds are not for the faint-hearted, and if there ..

From £9.00

Bruce Banner 3

Delta9 Labs bred Bruce Banner III from an OG Kush and a Strawberry Diesel. Not only does this signif..

From £26.95